Application of the Name Goniophlebium and a New Subgeneric Name in Polypodium

2 Pages·1993·1 MB·English

by  David B Lellinger

AMERICAN FERN JOURNAL: VOLUME NUMBER
83 (1993) 37
1
Name
Application of the Goniophlebium
New Name
and
Subgeneric Polypodium
a
in
David B Lellinger
.
Museum
Department of Botany, National of Natural History, Smithsonian Institution,
DC
Washincton. 20560
new name
In publishing the generic Goniophlebium, K. Presl (1836, 185-186) pro-
pp.
New
vided a description based on five World species, which he transferred to his genus.
He synonym "Polypodium spuriorum
also included the apparent scctio
1,
Goniophlebium. Blutm" which was based on Old World (On examining
three species.
Blume's work (1830, 132), one finds "section" to be a rankless mime, but one valid
p. tliis
under Art. 35.2 and so available for transfer.) He also transferred each of Blume's species
with a query.
saw no
Presl's concept clearly applied to American material, for he Asiatic material
Blume
and he included Blume's name and species only "ex auctoritale clar. ." It is very
. .
name
likely Uiat Presl intended to establish a independent of Blume's, as the preponder-
ance of evidence indicates: American species described and transferred without doubt,
and
described, transferred with doubt,
New
between World and
World
species
Goniophlebium Pichi Sermolli (1973,
in sect. Schellolepis or in Schellolepis. pp.
American
465-468) chose one of species as lecto-
agreed with Presl's
that disposition,
and genus Goniophlebium K.
type, cited the as Presl.
name
excluded Blume's
Presl
name
be
them anoUier genus), would be no problem in considering Presl's to
in tJiere
Code by
independent of Blume's. However, according to the present (Arts. 48.1, 63.2),
-
- mandatory base
name and even with doubt to
including Blume's his species it is
among Blume's and
name from species, to cite
Presl's on Blume's. to choose a lectotype
Rcxll
ecently
American
species
and
pinnae
articulate
asubgenus of Polypodium (Lellinger, 1981,
tained in p.
^
same
Kramer 205-206, 224-225) held the
Hennipman, Veldhoen and (1990,
93). pp.
between subgenera of
occur the
hybrids
viewpoint; they pointed out several that
lamina and paraphy-
American dissected scales
Polypodium. In addition, they illustrated
which
verrucosum (Hook.) Smith, neither of
ses of Polypodium (Goniophlebium) J. I
have observed New World species, whose laminae are rarely pilosulous and perhaps
in
never paleaceous or paraphysate.
Polypodium
and subg.
Because names Goniophlebium (Blume) K. Presl
the
Old World material that not clearly
Goniophlebium (Blume) C. Chr. must be applied to is
New
New World subgenus traditionally called
from World, the
allied to material the
new
name:
Polypodium Goniophlebium requires a
subg.
Polypodium Polygoniophlebium Lellinger, subg. nov.
subg.
laminae pinnatae pinnatisectae vel pinnati-
Rhizoma
frondibus distantibus;
repens,
late
VOLUME NUMBER
AMERICAN FERN JOURNAL:
38 83 (1993)
1
pinnis non pinna tcnninalis confonnis vel apicc laminae pinnatifido;
fidae, articulatis,
areolae fertilia in sericbus (1)2-5(8) dispositae; venae primariae pinnatae parallelac;
venae secundariae angularae, venulis inclusis simplicibus cxcurreniibusque.
P
Type: olypodium fraxinifolium Jacq. (Polypodium articulatum Desv. and rhizo-
P,
P
caidon Willd., two of Presl's original species, are synonyms of fraxinifolium.)
The species of Polygoniophlebium are by no means unifonn. The type species,
sect.
along with species such as adnatum Kunze and giganteum Desv., have long rhi-
P. P.
zomes with appressed pinnate laminae, and 3-6
scales, large, sori typically in scries.
Similarly large plants with shorter rhizomes, pinnatifid or pinnatiscct laminae least
(at
&
Humb.
toward the apex), and sori typically in 1-4(5) series include attenuatum
P.
BonpL ex Willd., R kuhnii Fourn., and Swartz. One small and apparently
P, triseriale iso-
lated group of species has short rhizomes and dark-green liuninae witli one row of slight-
ly elongate sori; includes plectolepidioides Roscnst. and rhachypteiygium Liebm.
it P. P.
Two
groups have smaller, mostly pinnatifid laminae with a single row or rarely two rows
on
of sori each side of the costa. Those with very long-creeping rhizomes and usually
P &
appressed
scales include loriceum catharinae Langsd. maritimum
P. L., Fisch.,
P.
and
Hieron., Those
P. ptilorhizon Christ. with shorter rhizomes and spreading scales
include P. dissimik L., P. plesiosonim Kunze, and migneri Mett. Polypodium
P. sessili-
folium Desv.
is similai; but is fully pinnate.
Lfterature Cited
Blunte, C. L. 1828-51. Flora Javae. Frank, Brussels.
J.
&
Hennipman Veldhoen
E., p. K. U. Kr^vmer. 1990. Polypodiaceae K. U. Kramer Green The
in &. S. (eds.),
P.
Farnilies and Genera of Vascular Plants, L Pteridopliytes and Gymnosperins. Springer- Verlag,
Berlin.
Lellinger
D. B. 1981. Notes on North American Amen
ferns. Fern 71 :90-94.
J.
Pion
Sermolli,
R. E. G. 1973. Fragmenta - Wehhia
Pleridologiae IV. 27:445-^477.
Presl, K. 1836. Tentamen
Pteridographiae. T. Haase, Prague.
R5DL-LINDER &
G., G. ZuLSTRA R. Tryon. 1990. Designation of a new lectotype for Goniophlehium (Blume)
Presl (Pol>podiaceae). Taxon
39:105.
An
SNinn,
J. 1841. arrangement and
definition of tlie genera of ferns, with observations on the affinities of eacl
1
genus.
Bot. (Hooker) 4:38-70.
J.
1875. Ilistoria Fihcum. Macniillan, London.
.