Terpsichore, a new genus of Grammitidaceae (Pteridophyta)

12 Pages·1993·8.2 MB·

by  A R Smith

Terpsichore, a New Genus of Grammitidaceae (Pteridophyta)
Alan R. Smith
University Herbarium, University of California, Berkeley, California 94720, U.S.A.
Abstract. Terpsichore, a new genus of Gram¬ Artificial Key to Genera of Neotropical
mitidaceae, is described and combinations are made Grammitidaceae
for the species known to belong to it. Terpsichore
1. Laminae entire or with margin slightly re-
differs from other genera in the family by the com¬
pand, rarely 1-2-forked with divisions en¬
bination of the following characters: the presence of tire . 2
usually conspicuous hydathodes that sometimes pro¬ 1. Laminae shallowly to deeply lobed to pin-
duce calcareous secretions; reddish to atropurpu- natifid or 1-pinnate, rarely pinnate-pinnat-
ifid. 8
reous (less often hyaline) setae mostly 1 -3 mm along
2(1). Veins connected by a marginal vascular
the stipe, rachis, costae, and (sometimes) lamina; strand, thus forming a row of areoles along
nonclathrate, usually castaneous to blackish rhizome each side of midrib; Greater Antilles ....
scales that are usually setulose along the margins; . Lomaphlebia
2. Veins free, or only casually and infrequent¬
and free, unbranched, pinnate venation in the seg¬
ly anastomosing; widespread in the Neo¬
ments of pinnae. The genus comprises about 50
tropics . 3
species and is primarily neotropical; one species is 3(2). Sori intermixed with whitish, stipitate,
known from Africa and offshore islands. A key is spherical glands .
provided to distinguish the neotropical genera of . . Ceradenia jungermannioides (Klotzsch) L.
E. Bishop
Grammitidaceae.
3. Sori lacking glands, or glands, if present,
not whitish . 4
4(3). Laminae with a dark brown to black scler-
enchymatous border .
This is the last in a series of papers describing .Grammitis sect. Grammitis
new genera of neotropical Grammitidaceae. Earlier 4. Laminae lacking a strongly differentiated
dark border. 5
papers dealt with the anhydathodous genera Cera-
5(4). Stipes and laminae with numerous dark
denia (Bishop, 1988), Zygophlebia (Bishop, 1989), setae greater than 1 mm . 6
and Enterosora (Bishop & Smith, 1992), while more 5. Stipes and laminae lacking dark setae, or
recently the hydathode-bearing genera Lellingeria if such setae present then these usually few
and less than 1 mm. 7
(Smith et ah, 1991), Melpomene (Smith & Moran,
6(5). Rhizomes short-creeping; sori round or
1992), and Micropoly podium (Smith, 1992) have
nearly so; tropical America . Enterosora
been delimited. Species of Terpsichore also have 6. Rhizomes long-creeping; sori oblong to short-
hydathodes, sometimes with calcareous secretions. linear; southern Chile and Argentina . . .
There are approximately 50 known species, making . Grammitis patagonica (C. Christensen)
Parris
it about equal in size to Lellingeria and Ceradenia.
7(5). Hydathodes present; tropical America . .
The distinctness of Terpsichore, named for the .Cochlidium
Greek muse of dance, was first realized hy the late 7. Hydathodes usually absent (sometimes
L. Earl Bishop. Unfortunately, he was unable to present in G. magellanica Desvaux);
southern Chile and Argentina.
advance the work beyond the use of the name in
.Grammitis sect. Grammitastrum
labeling some of his own collections. I have made a
8(1). Hydathodes absent or obscure on adaxial
search of herbaria (UC and MO), recent floristic surface of lamina . 9
accounts for Latin American countries (Proctor, 8. Hydathodes present at the ends of veins
1977, 1985, 1989; Stolze, 1981; Mickel & Beitel, on adaxial surface of the laminae . 12
9(8). Laminae simple, a single blade differenti¬
1988; Lellinger, 1989), Copeland's monograph of
ated into serrate, sterile, proximal part and
Ctenopteris (1956), and other relevant literature to an entire, usually fertile, distal part ....
determine those species that should be transferred Cochlidium serrulatum (Swartz) L. E. Bishop
to the new genus. 9. Laminae sinuate, shallowly lobed, or more
often pinnatifid to pinnate (rarely more di¬
The following artificial key is provided to distin¬
vided), not differentiated into distinct sterile
guish Terpsichore from its New World congeners:
and fertile parts . 10
Novon 3: 478-489. 1993.
Volume 3, Number 4 Smith 479
1993 Terpsichore (Grammitidaceae)
10(9). Sori with conspicuous, whitish, spherical, neis vel atropurpureis, interdum albidis; venae librae non
waxlike paraphyses (most easily seen in furcatae; sori rotundi superficales, sine glandibus.
young fronds); veins free .Ceradenia
10. Sori lacking evident waxlike, spherical pa¬ Plants epiphytic, rarely saxicolous or terrestrial;
raphyses, or if paraphyses evident these rhizomes short-creeping to ascending, generally
brownish and not waxlike; veins often anas¬ weakly dorsiventral to radial, the scales nonclath-
tomosing to form regular or irregular ar-
rate, brown to blackish, infrequently orangish, con-
eoles. 11
1 1(10). Laminae sinuate, or lobed no more than % colorous, dull to usually shining, glabrous or with
the distance to the midrib. Enterosora variously colored (hyaline to castaneous) setae; phyl-
11. Laminae deeply pinnatifid or pinnatisect lopodia present or absent; petioles nearly absent to
nearly to the midrib.Zygophlebia
equaling the lamina, setose (especially proxiirtally)
12(8). Scales of rhizomes lacking setulae (often
and sometimes also puberulent, the setae 0.5-3 mm,
bearing papillate glands less than 0.1 mm
at tip), strongly clathrate, often iridescent; usually reddish or castaneous, numerous, spreading,
rhizomes long-to short-creeping, strongly the hairs 0.1-0.2 mm, branched or unbranched,
dorsiventral .Melpomene pale reddish, sometimes glandular; laminae pinnat¬
12. Scales of rhizomes setulose or not, not
isect to 1-pinnate, rarely 1-pinnate-pinnatifid, fork¬
clathrate, or if clathrate, then setulose; rhi¬
zomes generally short-creeping to suberect, ing in a few spp., monomorphous, usually setose (at
radial or weakly dorsiventral, rarely strong¬ least along the rachis); hydathodes present, some¬
ly dorsiventral . 13 times producing calcareous secretions (whitish lime-
13(12). Main vein (costa) in the segments (or pin¬
dots); veins simple, pinnate from the costae, Iree,
nae) simple (lacking branches) or with a
hidden or easily visible; sori round, not sunken into
single acroscopic veinlet; sori only one per
segment or pinna; laminae narrowly linear, the lamina, without paraphyses; sporangial capsules
usually less than 1 cm wide; rhizomes ra¬ glabrous or setose; spores globose-tetrahedral, ob¬
dially symmetric . 14 late, or reniform, with a trilete or monolete laesura.
13. Main vein (costa) in the segments (or pin¬
x = 37.
nae) with more than 1 branch; sori usually
more than one per segment or pinna; lam¬
inae usually lanceolate to ovate, usually Distribution. Terpsichore comprises about 50
more than 1 cm wide; rhizomes radially to neotropical species, with one, T. cultrata, extending
dorsiventrally symmetric . 15 into Africa (Schelpe, 1969), Madagascar (Tardieu-
14(13). Rhizome scales golden to orangish or light
Blot, 1960), and the Mascarenes.
brownish, not clathrate; castaneous or red-
brown simple (unforked) setae more than It is uncertain whether African material called T.
1 mm long generally present on midribs cultrata is really conspecific with New World ma¬
and sometimes on lamina . Micropolypodium terial of the same species, but if not, plants from
14. Rhizome scales dark brown to blackish,
the two areas are certainly closely allied. It is highly
clathrate; castaneous or red-brown setae
interesting, and suggestive of antiquity for the Gram¬
generally lacking on midribs and lamina, if
present then less than 0.5 mm long and mitidaceae, that most of the genera of neotropical
often unequally forked . Lellingeria Grammitidaceae, including Terpsichore, Ceradenia,
1 5( 1 3). Scales clathrate; sori often slightly to deep¬ Enterosora, Lellingeria, Melpomene, Zygophle¬
ly immersed in the lamina; stipes and ra-
bia, Grammitis sensu stricto, and Cochlidium, are
chises with hyaline to light reddish setulae
0.1 0.3 mm, lacking dark setae; rhizomes also represented by one or a few species in Africa
ascending, radially symmetric . . . Lellingeria and islands of the Indian Ocean (Smith, 1993); these
15. Scales not clathrate; sori superficial; stipes same genera, with the exception of Lellingeria and
and rachises generally with dark setae more
Grammitis, are absent from southeast Asia and the
than 0.5 mm; rhizomes short-creeping to
Pacific.
ascending, dorsiventral to radial . Terpsichore
Characters defining Terpsichore include the pres¬
ence of rather conspicuous hydathodes on the ad-
Terpsichore A. R. Smith, gen. nov. TYPE: Po¬
axial surface of the laminae; castaneous or atro-
lypodium asplenifolium L., Sp. PI. 2: 1084.
purpureous to whitish setae along the stipe, rachis,
1753. = Terpsichore asplenifolia (L.) A. R.
costae, and sometimes lamina; setae usually dense
Smith. Figure 1.
at the stipe bases, absence of glandular paraphyses
Plantae plerumque epiphyticae; rhizomata infirme dor- in the sori; nonclathrate, usually castaneous or atro-
siventralia vel radialia; squamae rhizomatis non clathratae, purpureous (occasionally blackish or orangish), con-
plerumque brunneolae, atropurpureae, vel nigrescentes, colorous rhizome scales that are usually setulose
concolores, margine plerumque setulosae; folia plerumque
along the margins, or at least at the tip, and some¬
pinnatisecta, cum hydathodis adaxialiter, interdum exsu-
datis calcareis efferentibus; laminae interdum fungis ateris times on the surfaces; rhizomes generally weakly
clavatis praeditae; petioli et rhachides setosi, setis casta- dorsiventral to radial in symmetry; and free, un-
480 Novon
Figure 1. Characteristic species of Terpsichore. —A. T. alsophilicola. Group 1, habit (pendent, indeterminate
epiphyte) and details to show rhizome scale, abaxial surface of segment, indument, and sporangium (Knapp & Kress
4315, UC). —B. T. alsopteris. Group 2, habit (erect-arching) and details to show rhizome scale, fungal fruiting body
from rachis, and calcareous secretions from hydathodes on adaxial surface (van tier Werff & Palacios 10589, UC).
—C. T. longa. Group 3, habit (pendent indeterminate epiphyte) and details to show sporangia, paired and clustered
setae on pinna margin (van der Werff et al. 9488, UC). —D. T. sub tills. Group 4, habit (arching-pendent) and
details to show rhizome scale, abaxial surface of segments, fungal fruiting body in sorus, and calcareous secretion
from hydathodes on adaxial surface (van der Werff & Palacios 9147, UC). —E. T. longiselosa. Group 5, habit (±
erect) and details to show rhizome scale, abaxial surface of segments, and branched laminar hairs (Herrera 3670,
UC).
Volume 3, Number 4 Smith 481
1993 Terpsichore (Grammitidaceae)
branched veins from the costae of the segments or stipes distinct, the pinnae not reduced to base of
pinnae. frond; laminae with solitary setae; hydathodes lack¬
The most similar species to Terpsichore currently ing calcareous secretions (Fig. 1A).
are classified in Ctenopteris, a diverse and probably Group 2. Terpsichore taxifolia Group (13 spp.).—
polyphyletic genus typified by the Old World species Fronds arching to erect, blades determinate; rhi¬
C. venulosa (Blume) Kunze. A synonym of Cten¬ zomes generally dorsiventral; rhizome scales casta¬
opteris is Cryptosorus [synonym: Grammitis sect. neous, setose at tip and/or margins; sporangia gla¬
Cryptosorus (Fee) R. M. Tryon & A. F. Tryon], brous; blades with black clavate fungal fruiting bodies
type Cryptosorus blumei Fee [= Ctenopteris ob- (except T. paulistana); stipes distinct, the pinnae
liquata (Blume) Copeland], also Old World. The not reduced to base of frond; laminae with solitary
type species of both Ctenopteris and Cryptosorus, setae; hydathodes often producing calcareous se¬
as well as many allied Old World species (see Parris, cretions (Fig. IB).
1990: 82), lack hydathodes, have subclathrate rhi¬ Group 3. Terpsicore lanigera Group (16 spp.).—
zome scales, and have sori sunken in crypts. In Fronds pendent, blades indeterminate; rhizomes gen¬
these three characteristics, Ctenopteris differs from erally radially symmetric; rhizome scales hairy on
all species here included in Terpsichore. Some other margins and often surface, or sometimes absent (71
Old World species included in Ctenopteris do have alfarii); sporangia setose (except T. delicatula, T.
hydathodes, nonclathrate rhizome scales, and non- jamesonioides, and 7. spathulata); blades lacking
sunken sori, characteristics that might suggest a black clavate fungal fruiting bodies; stipes usually
closer affinity to Terpsichore. The affinities of the less than 1 cm long, the pinnae reduced nearly to
“nontypical,” Old World Ctenopteris species need base of frond; laminae with tendency for paired or
further study, but it seems clear that Terpsichore clustered setae (except T. delicatula, T. jameson¬
is not congeneric with any genus of Grammitidaceae ioides); hydathodes producing calcareous secretions
based on an Old World type. in a few spp. (Fig. 1C).
Certain species of Terpsichore, especially those Group 4. Terpsichore subtilis Group (2 spp.).—
in the T. taxifolia group (Group 2, below), also Fronds arching or directed downward, sometimes
resemble Pecluma (Polypodiaceae) because of their pendent, blades indeterminate; rhizomes weakly dor¬
pectinate laminae. Pecluma, however, has short siventral to radial; rhizome scales blackish, with a
phyllopodia, yellow, bilateral, monolete spores, and single apical seta or marginally setulose; sporangia
often comose rhizome scales; species of Pecluma glabrous; blades with black clavate fungal fruiting
also lack stout castaneous setae and black clavate bodies; stipes less than 1 cm long, the pinnae reduced
fungi. It seems likely that the resemblance is the nearly to base of frond; laminae with solitary setae;
result of convergent evolution and is not an indi¬ hydathodes producing calcareous secretions (Fig.
cation of any close affinity between the two genera. ID).
In his revision of American Ctenopteris, Copeland Group 5. Terpsichore achilleifolia Group (3
(1956) treated the species of Terpsichore in seven spp.).—Fronds arching, blades determinate; rhi¬
of his nine species groups, exemplified bv the fol¬ zomes generally weakly dorsiventral; rhizome scales
lowing seven species: Ctenopteris senilis, C. cap- orangish to orange-brown, entire to glandular to
illaris, C. elastica, C. pendula, C. suspensa, C. sparingly setose on margin; sporangia glabrous; blades
sericeolanata, and C. meridensis. Copeland’s groups lacking black clavate fungal fruiting bodies; stipes
bear little or no resemblance to the genera as Bishop distinct, the pinnae not reduced to base of frond;
and I have circumscribed them, and in fact Cope¬ laminae with solitary setae; hydathodes lacking cal¬
land's groups of species are mostly highly artificial careous secretions (Fig. IE).
assemblages based on size and dissection of the fronds, The relationships among these groups are un¬
characters that are completely unreliable in defining certain. The pendent, nearly estipitate fronds, ra¬
natural groups of species in Grammitidaceae. dially symmetrical rhizomes, clustered setae, and
Species of Terpischore can be rather easily di¬ usually setose sporangia of the T. lanigera group
vided into the following five groups, which could are probably derived features. In frond form, the
conveniently be regarded as natural sections of the T. asplenifolia group seems to be ancestral, possibly
genus (Fig. 1). having given rise to T. taxifolia and allies, all but
Group 1. Terpsichore asplenifolia Group (12 one of which bear black clavate fungi. Species in
spp.).— Fronds arching, blades determinate; rhi¬ both the asplenifolia and taxifolia groups have
zomes weakly dorsiventral to radial; rhizome scales more or less weakly dorsiventral rhizomes, thought
orange to brown, setulose on margins and often by Bishop (1989) to be an ancestral condition in the
surface; sporangia setose (except 7. atroviridis); family. In its orangish, entire or sparingly setose
blades lacking black clavate fungal fruiting bodies; rhizome scales, the T. achilleifolia group is aberrant
482 Novon
Table 1. Spores of Terpsichore, T. lanigera group. Vouchers are all in UC. Less common conditions are in
parentheses. Bo = Bolivia; Br = Brazil; C = Colombia; CR = Costa Rica; E = Ecuador; G = Guatemala; M = Mexico;
Pa = Panama; Pe = Peru; V = Venezuela, e = ellipsoid; mo = monolete; o = oblate; t = tetrahedral; tr = trilete.
Number of
Species Shape Laesura cells Voucher Locality
T. alfarii o tr 1 Fiedler 159 CR
T. cultrata e mo 2 Steyermark 48601 G
e mo 2(1) Silverstone-Sopkin 3614 C
t-o tr 1 (2) Steyermark & Wurdack 1177 V
e ino 1 (2) Steyermark 100715 V
t-o tr 1 & 2 Krai 7197211 V
t-o tr 1 & 2 Kummrow 2153 Br
t-o tr 1 (2) Hutchison & Wright 5582 Pe
e & o mo & tr 1 & 2 Fay & Fay 2184 B
T. delicatula o tr 1 (2) Smith 471 M
T. hetermorpha t-o tr 1 & 2 Ceron 1207 E
t-o tr 1 0llgaard 34281 E
T. jamesonioides o tr 1 & 2 Bishop 2520 Pe
T. lanigera t-o tr 1 Herzog 2180 Bo
t-o tr 1 Wiggins 10768 E
t-o tr 1 Bishop 862 CR
e (o) mo (tr) 1 & 2 Mickel 3025 CR
e mo 1 & 2 Buchtien 5251 Bo
t-o tr 1 Sodiro s.n. E
T. laxa e (o) mo (tr) 1 Bishop 2509 Pe
T. tonga e mo 1 (2) Gomez 21085 CR
e mo 1 (2) Chacon 1518 CR
e mo 1 (2) Palacios 5655 E
e mo 1 & 2 van der Werff 9488 E
T. mollissima e mo 1 Steyermark 49625 G
e mo 1 & 2 Skutch 5204 CR
e mo 1 & 2 Maguire 53790 V
T. senilis e mo 2 Breedlove 68357 M
e (t-o) mo (tr) 1 & 2 Bishop 861 CR
e mo 1 & 2 Gomez 22285 Pa
e mo 2(1) Smith et al. 1430 V
e mo 1 or 2 Steyermark & Liesner 118283 V
T. spathulata t-o tr 1 Pur pus s.n. M
T. subflabelliformis e mo 1 & 2 van der Werff 9148 E
e mo 1 (2) Bishop 2515 Pe
e mo 1 (2) Herzog 1985 Bo
T. turrialbae t-o tr 1 Smith 2073 CR
t-o tr 1 Bishop 859 CR
T. xanthotrichia e mo 2 Beitel 85083 V
and may show a relationship to Micropolypodium A peculiar feature in nearly all species of the
or to some Old World species currently included in Terpsichore taxifolia and T. subtilis groups is the
Ctenopteris (but not the type). The pinnate-pinnat- presence of small (ca. 0.5-1.0 mm long), black,
ifid fronds of three species belonging here are un¬ clavate fungi (presumably Acrospermum maxonii
usual in Grammitidaceae but are found in several Farlow) on the abaxial laminae, particularly along
species of Lellingeria (e.g., L. suprasculpta, L. the vascular tissue (rachis, costae, and veins) and
melanotrichia). This character state (pinnate-pin- in the sorus (Mickel, 1973). Not all fronds in a given
natifid lamina) has undoubtedly arisen several times collection will show this feature, but it is of such
among neotropical grammitids and also in the Old regular occurrence on at least some fronds of a
World genus Ctenopteris (e.g., C. taxodioides (Ba¬ gathering as to be diagnostic for the two groups.
ker) Copeland, C. bipinnatijida (Baker) Copeland, Most likely, the presence of this fungus on species
and allies). in the two groups indicates a monophyletic origin
Volume 3, Number 4 Smith 483
1993 Terpsichore (Grammitidaceae)
for this suite of about 15 species (Groups 2 and 4, New Species
below). The only other fern outside these groups
Terpsichore pirrensis A. R. Smith, sp. nov.
that is a known host for this particular fungus is the
TYPE: Panama. Darien: Cerro Pirre, 2,500-
grammitid Melpomene anfractuosa (Kunze ex
4,500 ft., Duke & Elias 13812 (holotype, UC;
Klotzsch) A. R. Smith & R. C. Moran.
isotypes, MO, NY not seen, SCZ not seen).
Chromosome counts are known for a few species
Figure 2A.
of Terpsichore, namely, T. asplenifolia {n = 37,
2n = 74; Walker, 1966), T. semihirsuta (2n = ca. Ex affinitate T. taxifoliae (L.) A. R. Smith et T. ze-
148; Walker, 1966), from Jamaica, and T. lanigera ledonianae (Lellinger) A. R. Smith, stipitis setis brevior-
(n = 37; Evans, 1963, reported as Ctenopteris ihus hyalinis vel pallide rubellis 0.2-0.3 mm, rhachide
glabra abaxialiter, et setis inter sporangia plerumque car-
cultrata, a misidentifieation, UC 58-234-1), from
entibus distinguenda; insuper differt a /'. taxifoliae setis
Costa Rica. From these fewr reports, it would appear margine segmentorum carentibus.
that the base number for the genus is x = 37, the
same number found in several other grammitid gen¬ Rhizome short-creeping to suberect; scales cas-
era, including Ceradenia, Micropolypodium, En- taneous, concolorous, shining, 1.5-2.5 x 0.2-0.3
terosora, and Melpomene. mm, entire, often with a single minute hyaline patent
Tryon & Lugardon (1991: 363) provided an SEM or oblique seta at tip; fronds mostly 15-30 cm;
photograph of a spore ol T. asplenifolia that shows stipes dark brown, up to 8 cm x 0.5-1 mm, with
a spore that is nearly globose, with an obscure trilete hyaline to light reddish setulae 0.2-0.3 mm; laminae
aperture and finely papillate surface. Spores of other thin-chartaceous, pinnatisect, narrowly elliptic with
genera of Grammitidaceae shown in this work show proximal pinnae (up to ca. 12 pairs) gradually re¬
similar features, but are sometimes more tetrahe¬ duced to small lobes 1 -3 mm long; rachises glabrous
dral-globose and have more prominent apertures and abaxially or with very sparse setae to 1.5 mm, also
papillae or surface globules. However, insufficient with black clavate fungi; segments mostly 30-55
material has been studied to indicate the taxonomic pairs per frond, spreading to often ascending up to
significance, if any, of these variations in spore mor¬ ca. 70° from rachis, linear-lanceolate, 1.5-2.5 cm
phology in the family. x 2-3.5 mm, acutish at tip, lacking marginal and
Wagner (1985) reported that spores of Gram- laminar setae; veins simple, blackish and easily vis¬
mitis lanigera, G. senilis, and several related gram- ible abaxially, up to 15 pairs per segment; hyda-
mitids had monolete laesurae. 1 confirm the presence tliodes lacking calcareous secretions; sori up to 1 5
of monolete spores in the first two species and in pairs per segment, lacking setae from receptacle or
other species belonging to the Terpsichore lanigera setae sparse, less than 0.3 mm; sporangia glabrous.
group (Croup 3, see below).
Ellipsoid, bilateral, monolete spores appear to be This particular group, also including /. taxifolia
consistently present in T. longa, 7. mollissima, T. (L.) A. R. Smith and T. alsopteris (C. V. Morton)
senilis, and T. xanthotrichia; they are also some¬ A. R. Smith in Mesoamerica, is in need of revision,
times present in T. cultrata, 7. lanigera, and /. especially in South America where there are addi¬
laxa (Table 1). The other species for which spore tional undescribed species. Terpsichore pirrensis is
material has been available in Group 3 have globose- known only from Cerro Pirre.
tetrahedral, trilete spores (Table 1), as do species
Paratypes. PANAMA. Darien: same locality as type,
examined in Groups 1, 2, and 4. The significance
Duke & Elias 13754 (MO, NY not seen, SCZ not seen,
of ellipsoid, monolete spores in the genus is not UC); Serrania de Pirre, along steep ridge from Altos de
known, but this character state is undoubtedly de¬ Nique to Cerro Pirre, ca. 8 km N of Alturas de Nique,
rived and does not indicate affinity with Pecluma ca. 8 km W of Cana Gold Mine, 1,430-1,480 m, Croat
37833 (MO); Cerro Pirre, valley between Pirre and next
or any other extant genera of Polypodiaceae, which
most southerly peak, Folsom 4447 (MO).
nearly always have bilateral, monolete spores.
A peculiar feature of the spores of Grammitida¬
ceae is that they often undergo precocious division Terpsichore spathulata A. R. Smith, sp. nov.
within the spore wall before being released from the TYPE: Mexico. Mexico: Sierra de las Cruces,
sporangium. Bicellular or multicellular spores are a 11,000 ft., Pringle 4145b (holotype, UC; iso¬
feature of several other groups of ferns that produce type, US). Figure 2B.
chlorophyllous spores (Tryon & Lugardon, 1991).
A T. heteromorpha (Hooker & Greville) A. R. Smith
In Terpsichore, it appears that spores often undergo
rhizomatis paleis parvioribus aurantiacis vel brunneolis,
division before the spore wall is ruptured and before sporangiis sine setis, et laminis gracilioribus plerumque
release from the sporangia ( Fable 1; Stokey & At¬ non furcatis aut si furcatis nunc divisionibus ca. 30° div-
kinson, 1958). ergentibus differt.
484 Novon
Figure 2. New species of Terpsichore. —A. T. pirrensis A. R. Smith, habit and details showing stipe base with
uniformly short hairs, abaxial surface of segments, and fungal fruiting body from rachis (Duke & Elias 13842, UC).
— B. T. spathulata A. R. Smith, habit and details showing rhizome scale, branched hair along rachis, stellate seta
on rachis, and abaxial surface of segments, Pringle 4145b (UC).
Plants epipetric in moist, shaded rock crevices or often overlapping distally, without black clavate
and on cliffs, under rock overhangs, and in shallow fungi, thin-chartaceous; rachises brown to blackish,
caves and grottoes; rhizome very short-creeping to with numerous dark, often paired or fasciculate setae
suberect; scales orangish to brownish, concolorous, 1 2 mm; pinnae often more than 50 pairs per frond,
dull, 0.3-1 x 0.2-0.5 mm, somewhat obscured by alternate, 2—5(—7) x 2-4 mm, ascending, sessile
dense, hyaline setae on margins and surfaces; fronds or proximal ones stipitate to 2 mm, irregularly oval,
numerous, densely crowded, pendent, often more obovate, rhombic, or slightly lobed, larger ones often
than 50 per plant, (12-)25-60(-90) cm, apices inequilateral (excised basiscopically), base cuneate,
indeterminate; stipes brown, 20 150 x 0.2-0.4 apex rounded or truncate, margin setose, setae pale
mm, with numerous, mostly unbranched, tawny se¬ reddish, not paired, paired, and/or sessile-stellate;
tae 1-2 mm; laminae 10-85 x 0.4-1.2(-1.6) cm, veins obscure except for the darkened costa (basal
1 -pinnate, or occasionally rachises 1 -2-bifurcate with half), 1-3 pairs per pinna; laminar surface between
forks ca. 30° apart, pinnae very gradually reduced the veins glabrous or with pale setae on both sur¬
and more widely separated proximally, contiguous faces, often also with 1-3-branched hairs 0.1-0.2
Volume 3, Number 4 Smith 485
1993 Terpsichore (Grammitidaceae)
mm; hydathodes without lime dots; sori usually 2- apparently lacks hydathodes or has only faint hy¬
6 per pinna, lacking setae from receptacle; sporangia dathodes (Barbara Parris, in litt.).
glabrous.
Terpsichore alfarii (Donnell Smith) A. R. Smith,
Specimens of Terpsichore spathulata from Mex¬ comb. nov. Basionym: Polypodium alfarii
ico and Central America have previously been de¬ Donnell Smith, Bot. Gaz. 33: 262. 1902. Cten-
termined as Grammitis heteromorpha (Hooker & opteris alfarii (Donnell Smith) Copeland.
Greville) C. V. Morton. The latter species is re¬ Grammitis alfarii (Donnell Smith) C. V. Mor¬
stricted to the Andes from Colombia to Bolivia and ton. Polypodium oligosorum Mettenius ex
differs by the larger (1-1.5 mm), black rhizome Kuhn, non Klotzsch. Distribution. Costa Rica,
scales, thicker lamina and rachises, and presence of Venezuela, Colombia, Ecuador. Group 3.
sporangial setae. In addition, Andean specimens have Terpsichore alsophilicola (H. Christ) A. R.
the lamina markedly and regularly bifurcate, with Smith, comb. nov. Basionym: Polypodium al¬
the blade forks diverging at 60-90°. Smith (1981) sophilicola H. Christ, Bull. Soc. Bot. Geneve,
and Stolze (1981) have previously discussed some II, 1: 219. 1909, as P. alsophilicolum. Gten-
of the variation in Grammitis heteromorpha sensu opteris alsophilicola (H. Christ) Copeland.
lato. Grammitis alsophilicola (H. Christ) F. Sey¬
mour. Distribution. Costa Rica, Panama, Co¬
Paratvpes. MEXICO. Chiapas: Munic. Union Juarez,
SE side of summit of Volcan Tacana, 12,500 ft., Breed¬ lombia?, Ecuador. Group 1.
love 24297, 24303, 24304 (DS); Volcan Tacana, 2,800
Terpsichore alsopteris (C. V. Morton) A. R.
m, Matuda 2890 m (K, MEXU, NY, US). Distrito
Federal: Desierto de los Leones, ca. 9,600 ft., Her¬ Smith, comb. nov. Basionym: Grammitis al¬
nandez X. s.n. (US), Lyonnet 232 (US). Jalisco: Nevado sopteris C. V. Morton, Contr. U.S. Natl. Herb.
de Colima, above Jazmin, above El Isote, 2,600 m, 38: 112, t. 4. 1967. Distribution. Costa Rica,
McVaugh 10043 (US), 3,200 m, McVaugh 10073 (VS),
Panama, Colombia, Ecuador, Peru. Croup 2.
ca. 4,000 m, McVaugh 13820 (US). Mexico: Sierra de
las Cruces, Pringle 4145 (US); Ixtaccihuatl, above San Terpsichore amphidasyon (Kunze ex Mettenius)
Rafael, ca. 4,040 m, Beaman 2817 (UC, US); Ixtacci¬
A. R. Smith, comb. nov. Basionym: Polypo¬
huatl, La Joya, 3,990 m, Beaman 3514 (US); Ixtacci¬
dium amphidasyon Kunze ex Mettenius, Abh.
huatl, 12,000-13,000 ft., Pur pus s.n. (UC), 172 (US),
1596 (UC, US), 3,500 m, Matuda 27574 (US), 4,100 Senckenberg. Naturf. Ges. 2: 49. 1857. Gram-
m, Rzedowski 25410 (US); La Cienega, cerca del Llano mitis amphidasyon (Kunze ex Mettenius) Duek
Grande, Ixtaccihuatl, Rzedowski 29309 (US); arriba de & Lellinger. Xiphopteris amphidasyon (Kunze
El Salto, Valle de Ayoloco, Ixtaccihuatl, Rzedowski 23465
ex Mettenius) Alston. Distribution. Venezuela.
(LJS); Volcan Ixtaccihuatl, Moore et al. 4526 (UC, US);
SE de Ixtaccihuatl, 3,600 m, Matuda 26113, 26114 Group 2.
(US); Popocatapetl, 3,400 m, Sanchez M. 423 (US);
Terpsichore angustipes (Copeland) A. R. Smith,
between Km 76 and 77 on Amecameca-Popocatepetl
comb. nov. Basionym: Gtenopteris angustipes
road, ca. 3,250 m, Beaman 2060 (UC); Cerro Cabezas,
3,500 m, Lyonnet 1479, Sanchez S. 364 (US); Xitle Copeland, Philipp. J. Sci. 84: 404. 1956.
Chico, Rzedowski 938(US). Veracruz: Orizaba, 11,000 Grammitis angustipes (Copeland) Lellinger.
ft., Plantae Mexicanae Liebmann 2508 (US); Munic. Distribution. Colombia. Group ?
Calcahualco, 5 km SW of Jacal, 19°05'N, 97°15'W,
3,450 m, Nee & Diggs 24843 (UC). GUATEMALA. Terpsichore asplenifolia (L.) A. R. Smith, comb,
Sacatepequez: Volcan de Agua, 3,400-3,752 m, Pit- nov. Basionym: Polypodium asplenifolium L.,
tier 24 (US). San Marcos: upper slopes of Volcan Ta¬
Sp. PI. 2: 1084. 1753. Gtenopteris aspleni¬
cana, 4,100-4,400 m, Steyermark 36134 (US).
folia (L.) Copeland. Grammitis asplenifolia (L.)
Proctor. Distribution. Southern M exico to
New Combinations
Panama, Colombia and Venezuela to Bolivia,
Terpsichore achilleifolia (Kaulfuss) A. H. Smith, Antilles. Group 1.
comb. nov. Basionym: Polypodium achillei-
Terpsichore athyrioides (Hooker) A. B. Smith,
folium Kaulfuss, Enum. Fil. 116. 1824. Cten-
comb. nov. Basionym: Polypodium athy¬
opteris achilleifolium (Kaulfuss) J. Smith.
rioides Hooker, Sp. Fil. 4: 224, t. 27 > B. 1862.
Grammitis achilleifolia (Kaulfuss) R. M. Tryon
Ctenopteris athyrioides (Hooker) Copeland.
& A. F. Tryon. Distribution. Southern Brazil.
Grammitis athyrioides (Hooker) C. \ . Morton.
Group 5.
Distribution. Peru, Bolivia. Group 2.
A species from Madagascar and the Mascarenes,
Polypodium yungense Rosenstock, Repert. Spec. Nov.
Ctenopteris torulosa (Baker) Tardieu, is very similar Regni Veg. 5: 236. 1908. Xiphopteris yungensis
to Terpsichore achilleifolia in blade dissection hut (Rosenstock) Crabbe.
486 Novon
Terpsichore atroviridis (Copeland) A. R. Smith, Terpsichore david-smithii (Stolze) A. R. Smith,
comb. nov. Basionym: Ctenopteris atroviridis comh. nov. Basionym: Grammitis david-smithii
Copeland, Philipp. J. Sci. 84: 461. 1956. Stolze, Fieldiana, Bot., n.s. 32: 109. 1993.
Grammitis atroviridis (Copeland) F. Seymour. Distribution. Peru, Bolivia. Group 2.
Distribution. Nicaragua, Costa Rica, Panama.
Terpsichore delicatula (M. Martens & Galeotti)
Group 1.
A. R. Smith, comb. nov. Basionym: Polypo¬
Terpsichore attenuatissima (Copeland) A. R. dium delicatulum M. Martens & Galeotti,
Smith, comb. nov. Basionym: Ctenopteris at¬ Nouv. Mem. Acad. Roy. Sci. Bruxelles 15(5):
tenuatissima Copeland, Philipp. J. Sci. 84: 456, 35, pi. 7, f. 1. 1842. Ctenopteris delicatula
t. 11. 1956. Grammitis attenuatissima (Cope¬ (M. Martens & Galeotti) J. Smith. Grammitis
land) C. V. Morton. Distribution. Ecuador. delicatula (M. Martens & Galeotti) F. Sey¬
Group 2. mour. Distribution. Southern Mexico, Guate¬
Terpisichore ehrysleri (Copeland) A. R. Smith, mala. Group 3.
comb. nov. Basionym: Ctenopteris ehrysleri Terpsichore dependens (Baker) A. R. Smith,
Copeland, Philipp. J. Sci. 84: 448. 1956. comh. nov. Basionym: Polypodium dependens
Grammitis ehrysleri (Copeland) Proctor. Dis¬ Baker, Syn. Fil. 335. 1867. Grammitis de¬
tribution. Costa Rica, Panama, Colombia and pendens (Baker) C. V. Morton. Distribution.
Venezuela to Bolivia, Brazil, Jamaica, Hispan¬ Colombia, Ecuador, Peru, Bolivia. Group 3.
iola. Group 1.
Terpsichore dolorensis (Hieronymus) A. R.
Terpsiehore eoncinna (A. R. Smith) A. R. Smith,
Smith, comh. nov. Basionym: Polypodium do-
comb. nov. Basionym: Grammitis eoncinna A.
lorense Hieronymus, Bot. Jahrb. Syst. 34: 512.
R. Smith, Ann. Missouri Bot. Gard. 76: 338.
1905. Grammitis dolorensis (Hieronymus)
1989. Polypodiam coneinnum Mettenius ex
Lellinger. Distribution. Colombia. Group 1.
Kuhn, Linnaea 36: 132. 1869, not Willdenow,
Terpsichore eggersii (Baker ex Hooker) A. R.
Sp. PI., ed. 4. 5: 201. 1810 (= Thelypteris
Smith, comb. nov. Basionym: Polypodium eg-
eoncinna (Willd.) Ching). Distribution. Vene¬
gersii Baker ex Hooker, Icon. PI. t. 1671.
zuela. Group 3.
1886. Grammitis eggersii (Baker ex Hooker)
Terpsichore cretata (Maxon) A. R. Smith, comb,
Proctor. Distribution. Lesser Antilles. Group 1.
nov. Basionym: Polypodium cretatum Maxon,
Amer. Fern J. 5: 51. 1915. Ctenopteris cre¬ Terpsichore exornans (Maxon) A. R. Smith,
tata (Maxon) Copeland. Grammitis cretata comb. nov. Basionym: Polypodium exornans
(Maxon) Proctor. Distribution. Cuba, Hispan¬ Maxon, Amer. Fern J. 18: 47. 1928. Cten¬
iola, Jamaica. Group 4. opteris exornans (Maxon) Copeland. Gram¬
mitis exornans (Maxon) Proctor. Distribution.
Terpsichore cultrata (Bory ex Willdenow) A. R.
Jamaica. Group 1.
Smith, comb. nov. Basionym: Polypodium eul-
tratum Bory ex Willdenow, Sp. PI., ed. 4. 5: Terpsichore gradata (Baker) A. R. Smith, comh.
187. 1810. Ctenopteris cultrata (Bory ex nov. Basionym: Polypodium gradatum Baker,
Willdenow) Copeland. Grammitis cultrata (Bory FI. Bras. 1(2): 513. 1870. Ctenopteris gra¬
ex Willdenow) Proctor. Xiphopteris cultrata data (Baker) Copeland. Grammitis gradata
(Baker) R. M. Tryon & A. F. I'ryon. Distri¬
(Bory ex Willdenow) Schelpe. Distribution.
Southern Mexico to Panama, Colombia and bution. Southern Brazil. Group 5.
Venezuela to Bolivia, Brazil, Antilles; Africa, Polypodium schwackei H. Christ in Schwacke, PI. Nov.
Madagascar, Mauritius, Reunion, and the Sey¬ Mineiras 2: 20. 1900. Ctenopteris schwackei (H.
chelles Islands. Group 3. Christ) Copeland.
Polypodium, elasticum Bory ex Willdenow, Sp. PI., ed. Terpsichore hanekeana (Proctor) A. R. Smith,
4. 5: 183. 1810. Ctenopteris elastica (Bory ex comh. nov. Basionym: Grammitis hanekeana
Willdenow) Copeland. Xiphopteris elastica (Bory Proctor, Mem. New York Bot. Gard. 53: 341.
ex Willdenow) Alston.
1989. Distribution. Puerto Rico. Group 1.
Polypodium reclinatum Brackenridge, Expl. Exp. 16:
11. 1854. Ctenopteris reclinata (Brackenridge) Terpsichore heteromorpha (Hooker & Greville)
Copeland. A. R. Smith, comb. nov. Basionym: Polypo¬
Polypodium ciliare Fee, Crypt. Vase. Bresil 1: 94, t.
dium heteromorphum Hooker & Greville, Icon.
27, f. 2. 1869. Ctenopteris ciliaris (Fee) Copeland.
Fil. 1: pi. 108. 1829. Ctenopteris heteromor¬
Polypodium ovalescens Fee, Crypt. Vase. Bresil 1: 94
t. 27, f. 3. 1869. pha (Hooker & Greville) Copeland. Grammitis
Volume 3, Number 4 Smith 487
1993 Terpsichore (Grammitidaceae)
heteromorpha (Hooker & Greville) C. V. Mor¬ 513. 1904. Ctenopteris lehmanniana (Hi¬
ton. Xiphopteris heteromorpha (Hooker & eronymus) Copeland. Distribution. Guatemala
Greville) Crabbe. Distribution. Colombia, Ec¬ to Panama, Colombia, Ecuador. Group 1.
uador, Peru. Group 3. Terpsichore leucosticta (J. Smith) A. R. Smith,
Terpsichore immixta (Stolze) A. R. Smith, comb, comb. nov. Basionym: Ctenopteris leucosticta
nov. Basionym: Grammitis immixta Stolze, .1. Smith, Hist. Fil. 185. 1875, a norn. nov. for
Fieldiana, Bot., n.s. 32: 115. 1993. Distri¬ Polypodium leucosticton Fee, not Kunze ex
bution. Peru. Group 3. Klotzsch (1847), Gen. Fil. 240. 1852. Poly¬
podium longiusculum C. Christensen, norn.
Terpsichore jamesonioides (Fee) A. R. Smith,
nov. for P. leucosticton Fee. Ctenopteris lon-
comb. nov. Basionym: Polypodium jameson¬
giuscula(C. Christensen) Copeland. Grammitis
ioides Fee, Mem. Soc. Sci. Hist. Nat. Stras¬
leucosticta (J. Smith) C. V. Morton. Distri¬
bourg 5 [Mem. Foug. 7]: 59, t. 21, I. 4. 1857.
bution. Venezuela, Ecuador, Peru. Group 2.
Ctenopteris jamesonioides (Fee) Copeland.
Grammitis jamesonioides (Fee) C. V. Morton. Terpsichore liogieri (Proctor) A. R. Smith, comb,
Distribution. Costa Rica, Panama, Venezuela nov. Basionym: Grammitis liogieri Proctor,
and Colombia to Peru. Group 3. Mem. New York Bot. Card. 53: 341. 1989.
Distribution. Puerto Rico. Group 1.
Ctenopteris nudipes Copeland, Philipp. J. Sci. 84: 405,
t. 4. 1956. Terpsichore longa (C. Christensen) A. R. Smith,
Terpsichore jenmanii (Underwood ex Maxon) comb. nov. Basionym: Polypodium longum G.
A. R. Smith, comb. nov. Basionym: Polypo¬ Christensen, Index. Fil. 541. 1906, a norn.
dium jenmanii Underwood ex Maxon, Contr. nov. for P. alternifolium Hooker, Sp. Fil. 4:
U.S. Natl. Herb. 16: 62. 1912. Ctenopteris 222, t. 277A, 1862, not Willdenow, Sp. PL,
jenmanii (Underwood ex Maxon) Copeland. ed. 4. 5: 168. 1810 (= Microsorum alterni¬
Grammitis jenmanii (Underwood ex Maxon) folium (Willdenow) Copel). Ctenopteris longa
Proctor. Distribution. Jamaica and Hispaniola. (G. Christensen) Copeland. Xiphopteris longa
Group 1. (C. Christensen) Alston. Distribution. Costa
Terpsichore kegeliana (Kunze) A. R. Smith, Rica, Ecuador. Group 3.
comb. nov. Basionym: Polypodium kegelian- Terpsichore longisetosa (Hooker) A. R. Smith,
um Kunze, Linnaea 21: 210. 1848. Ctenop- comb. nov. Basionym: Polypodium longise-
teris kegeliana (Kunze) K. U. Kramer. Gram¬ tosum Hooker, Sp. Fil. 4: 225. 1864. Distri¬
mitis kegeliana (Kunze) Lellinger. Distribution. bution. Costa Rica, Panama, Venezuela, Ec¬
Surinam, French Guiana. Group ? uador to Bolivia. Group 5.
Terpsichore lanigera (Desvaux) A. R. Smith, Polypodium myriophyllum Mettenius ex Hooker & Ba¬
comb. nov. Basionym: Polypodium lanigerum ker, Syn. Fil. 338. 1868. Ctenopteris myriophylla
Desvaux, Ges. Naturf. Freunde Berlin Mag. (Mettenius ex Hooker & Baker) Copeland. Gram¬
mitis myriophylla (Mettenius ex Hooker & Baker)
Neuesten Entdeck. Gesammten Naturk. 5: 316.
C. V. Morton. Xiphopteris myriophylla (Mettenius
1811. Ctenopteris lanigera (Desvaux) Cope¬ ex Hooker & Baker) Crabbe.
land. Grammitis lanigera (Desvaux) G. V.
Polypodium piligerum Hooker (Hooker’s Icon.
Morton. Xiphopteris lanigera (Desvaux)
PI. 4: t. 321. 1841), type from Ecuador, appears
Crabbe. Distribution. Costa Rica, Panama, Co¬
to be this species and an earlier name, but the
lombia to Bolivia, Hispaniola, Lesser Antilles.
rhizome was described as with scales “nigro-fuscen-
Group 3.
tibus, nitidis.” Specimens of T. longisetosa seen
Terpsichore laxa (C. Presl) A. R. Smith, comb,
from Mesoamerica, as well as from Venezuela and
nov. Basionym: Polypodium laxum G. Presl.
Ecuador, have orange-brown, rather dull sc ales.
Reliq. Haenk. 1: 23, t. 4, f. 1. 1825. Gram¬ Morton (1967) did not account for Polypodium
mitis laxa (C. Presl) C. V. Morton. Distribu¬ piligerum in his treatment of Grammitidaceae for
tion. Ecuador, Peru, Bolivia. Group 3.
Ecuador.
Ctenopteris contacta Copeland, Philipp. J. Sci. 84: 447. Terpsichore mollissima (Fee) A. R. Smith, comb,
1956.
nov. Basionym: Polypodium mollissimum Fee,
Terpsichore lehmanniana (Hieronymus) A. R. Hist. Foug. Antill. [Mem. Foug. 1 1]: 47, t. 12,
Smith, comb. nov. Basionym: Polypodium leh- f. 2. 1866. Ctenopteris mollissima (Fee) Cope¬
mannianum Hieronymus, Bot. Jahrb. Syst. 34: land. Grammitis mollissima (Fee) Proctor.