New species of Ocotea (Lauraceae) from northern Peru and Ecuador

2005·6.1 MB·

by  H Van Der Werff

New Species of Ocotea (Lauraceae) from Northern
Peru and Ecuador
Henk van dvr We iff
Missouri Botanical Garden, P.0. Box 299, St. Louis, Missouri 63166-0299, U.S.A.
henk. [email protected]
ABSTRACT. Seven species ot Ocotea, collected closely related groups of species. These newr in¬
during fieldwork in the drainage of the Rio Cenepa sights have not yet been incorporated in a new clas¬
in northern Peru, art* described. They will be in¬ sification, largely because morphologic al characters
cluded in the forthcoming Flora del Rio Cenepa. that would support the groups recognized in the
The new species are: Ocotea badia van tier Werff, DNA-based phylogeny have not yet been found. A
Ocotea hirtandra van tier Werff, Ocotea imazensis first step toward a new classification of Ocotea will
van tier Werff. Ocotea laevijolia van tier Werff, Oco¬ be a revision of the known species and the descrip¬
tea lenitae van tier Werff, Ocotea leptophylla van tion of the assorted undescribed species. Such a
tier Werff, and Ocotea vasquezii van tier Werff. revision is planned by the author. Until such a re¬
Key words: Ecuador, Lauraceae, Ocotea, Peru, vision has been completed, I will use the traditional
Rfo Cenepa. concept for Ocotea, even though it is very likely too
broad.
The new species discovered in northern Peru are
During preparation of a treatment of the Laura¬
the following:
ceae for the Flora del Rio Cenepa (Vasquez et al.,
in prep.) a number of collections were encountered
I. Ocotea badia van der Werff, sp. nov. TYPE:
that tlefied attempts at identification. Three species,
Peru. Depto. Amazonas: Bagua Prov., Distr.
belonging to the better known genera Licaria Au-
Imaza. Yamayakat, 04°55'S, 78°19'W. 400 m
blet, Nectandra Rottboell, and Pleurothyrium Nees,
alt.. 24 May 1996 (fl), R. Vasquez <& A. Vasquez
were described in an earlier publication (van tier
20957 (holotype. HUT; isotypes, HBG, K. MO.
Werff, 2003), but those belonging to the large and
NY, USM). Eigure I.
difficult genus Ocotea Aublet had not been dealt
with, based on these collections from northern Peru Ex grege Oeoteae minarum, seel ramulis tomentellis,
and adjacent Ecuador, seven new species art* de¬ venatieme partim brochidodroma et folds suhlus pilis cr¬
eeds praeditis differt.
scribed here. Ocotea is the largest genus of Laur¬
aceae in iht* Neotropics, with an estimated 300 + Trees, to 25 in; young twigs angular, solid or old¬
species (pers. obs.). It was last revised by Mez er twigs narrowly fistulose, densely reddish brown
(1889), who included 199 species in the genus. tomentellous, the indument covering the surface
Since then, a steady stream of new species has completely, becoming glabrous with age; terminal
been published (van der Werff, 1994, 1999, 2001. buds densely reddish brown tomentellous. Leaves
2003; van tier Werff cY Vicentini, 2000). bohvver 10—18 X 3—5 cm, elliptic to slightly obovate, char-
(1980) published an overview of the genus, largely taceous, alternate, the base acute, the margin flat,
based tin a study of type specimens, lit* recognized the apex acuminate, acumen to 1.5 cm long; ve¬
a number of species groups and provided keys to nation immersed on upper surface, raised on lower
his species groups and to species within each spe¬ surface; upper surface glabrous, lower surface ini¬
cies group. His contribution has greatly helped our tially densely pubescent with short, erect hairs, the
understanding of the genus. Traditionally, Ocotea indument becoming sparser with age, midrib and
has been characterized by having flowers with nine lateral veins tomentellous on the lower surface;
4-celletl locelli. the locelli arranged in two super¬ domatia lacking; lateral veins 4 to 7 pairs, often
posed paim, and includes all species that do not fit somew hat loop-connected in the distal half; petioles
in other, better defined genera with nine 4-celletl flat above. Inflorescences to 12 cm long, panieu-
stamens. A DNA-based phytogeny of the genera of late-cymose, reddish brown tomentellous, in the ax¬
Lauraceae (Chanderbali et al., 2001) suggests ils of leaves or cataphylls. I'lowers hermaphrodite,
strongly that Ocotea as currently accepted is not a yellow, 2.5—3.5 mm diam., the tepals erect at an-
monophyletic genus, but is formed by several not thesis, pedicels 2—3 mm long; tepals 6, 1.5 mm
Novon 15: 368-378. 2005.
Volume 15, Number 2 van der Werff 369
2005 New Species of Ocotea
long, ovate-elliptic, moderately pubescent outside, 2. Ocotea hirtandra van der Werff, sp. nov.
sparsely pubescent inside; stamens 9, all 4-cel led, TYPE: Peru. Depto. Amazonas: Bagua Prov.,
the cells in 2 superposed pairs, the outer 6 ea. 1.2 Distr. Imaza. camino Putuim-Shimutaz,
mm long, tin* glabrous anther ca. 1 mm long, the <)5°03'S, 78°20'W, 380 m. 22 June 1996 (fl).
short filament pubescent; inner stamens same lx. Vasquez, ,4. Vasquez, L. Debent a i & M.
length, also with a very short filament, glands pre¬ Chuimtan 21335 (holotype, HUT; isotypes,
sent at the base of the inner stamens, staminodia HBG, MO, NY). Figure 2.
not seen, pistil glabrous, ca. 1.6 mm long, the style Ocoteae multiglandulosae similis, sed staminibus dense
I mm long, the ovary globose, clearly swollen. pubescentibus et pistillodio glabro recedit.
Fruits ellipsoid to ovoid-ellipsoid, 2X1 cm, eu-
Trees, to 30 m; twigs angular or ridged, glabrous
pule small, platelike, 6 mm diam., gradually nar¬
or near the tips minutely appressed pubescent, sol¬
rowed into the pedicel.
id. terminal buds densely appressed pubescent.
Leaves alternate, 10-21 X 4-8 cm, chartaceous,
Ocotea badia, named after the color of the in-
obovate or obovate-elliptic. the base acute, margin
dument on the young twigs, is close to the 0. min-
flat or slightly inrolled, apex obtuse to bluntly
arum group or part of it, largely because of its el¬
acute, glabrous, except for the tufts of hairs in the
lipsoid or ovoid-ellipsoid fruits and small, platelike
axils of the basal lateral veins, venation immersed
cupules. Kohwer (1986) found two types of flowers
on the upper surface, midrib and lateral veins
in this group: pistillate and hermaphrodite. The
raised, tertiary venation immersed on the lower sur¬
type of 0. badia has hermaphrodite flowers: the pis¬
face, petioles 10-15 mm, ridged; lateral veins * to
til has a clearly thickened ovary, while the locelli
10 pairs. Inflorescences 8-15 cm, paniculate-cy-
of the stamens open and show some pollen grains
mose, in the axils ol cataphylls near the tips of the
on their flaps. However, the terminal buds are not
branches, basally nearly glabrous, becoming dis-
as long and slender as is usual in this group. I he
tally moderately to densely puberulous with very
only species in the 0. minarum group or close to
short, erect hairs. Staminate flowers 3.5—4 mm
it that have an erect indument are O.fendleri (Meis-
diam., yellowish, pedicels densely puberulous, half
ner) Rohwer, O. ovalifolia (Kuiz & Pavon) Mez. ().
as long to about as long as the flowers; tepals 1.5-
scalariforrnis van der Werff, and 0. odorata (Meis-
2 mm long, densely puberulous on both surfaces,
ner) Mez. but the first three of these species have
half-erect at anthesis, equal; stamens 9, all 4-
attenuate leaf bases that are usually inrolled and
celled, the cells in 2 superposed pairs, the outer 6
0. odorata differs in having the lower leaf surface
stamens with the cells introrse, 1.5 mm long, the
glaucous. Some of the flowers and buds of the type
filament half as long as the anther, filaments dense¬
collection are larger than average for the species,
ly puberulous, the anther abaxially densely puber¬
and have a denser indument and longer pedicels.
ulous or the indument dense along the center ol the
These buds or flowers are diseased and contain
anther and less dense toward the margins; inner 3
only whorls of gradually reduced tepals, but no re¬
with the lower pair of cells extrorse. the upper pair
productive organs. The tertiary venation on the low¬
latrorse, about as long as the outer 6 stamens, fil¬
er leaf surface of O. badia is noticably less raised
aments densely puberulous and with 2 conspicuous
on the fruiting specimens than on the flowering
glands at tile base; staminodia present, ca. 0.5 mm
ones, but the leaf shape, indument. and the partl\
long, stipitiform or with a capitate tip. puberulous,
loop-connected venation are similar in fruiting and
sometimes 2 locelli present on the staminodia; pis-
flowering specimens. The Ecuadorian paratype is
tillode spindle-shaped, I mm long, glabrous; recep¬
placed here provisionally: it differs in having small¬
tacle cup-shaped, glabrous inside; pistillate flowers
er leaves, shorter petioles, more pairs of lateral
and fruits not known.
veins and lacks the loop-connected venation in the
Ocotea hirtandra is characterized by its densely
distal half of the leaves.
puberulous flowers and stamens and its obovate or
Phenology. Flowering May—June; fruiting Feb¬
obovate-elliptic leaves with axillary tufts of hairs.
ruary.
The position of the inflorescences, in the axils of
Paratypcs. ECUADOR. Carchi: Tulcan Canton, Re- cataphylls and not in the axils of leaves, is unusual.
serva Ethnica Awa-Camumbi (fr). C. Quelal, C. Aulestia In one of the five known collections (Palacios & Ig-
A E Nastacuaz 255 (VIO). PERU. Amazonas: Km Ce- uago 4639) the inflorescences are not subapical;
nepa, S of Huampami trail (fr), B. Berlin 1662 (MO); One-
here the terminal buds have produced a young shoot
hrada Huampami (fr), R. Kayap 363 (MO); Condoreanqui
with immature leaves and the inflorescences are low¬
Province, El Cenepa, comunidad de San Antonio (tl). R-
Vasquez, A. Rena, E. Chavez & E. Quiaco 24088 (MO). er on the twig, but still not in the axils ol leaves.
370 No von
n.V4«QU#I, fi.Vjsqiin ?0937
fll'JSUUni IJOIONHAt tiAHlM M tftRDAttturi (nil
Figure I. Ocotea badia van der Werff, I lie MO isotype, Vasquez & Vasquez 20957.
Relationships of the new species are not clear. It Phenology. Flowering June (Peruvian collec¬
resembles species such as (). multiglandulosa (Ruiz tions), October (Ecuadorian collections).
& Pavdn) Mez and (). cuneifolia (Ruiz & Pavdn)
Mez. I he position of the inflorescences is unusual Paratypes. PERU. Depto. Amazonas: Prov. Condor-
in the genus, as are the densely puberulous stamens. cunqui. comunidad de Tutino (ff). It Vasquez. A. Pena, E.
Chavez & h. Quiaco 24177 (MO); Lugar Huampaini (fl).
Mature cupules would help in understanding its po¬
It Kayap 972 (MO). ECUADOR. INupo: Canton Archi-
sition in the genus. In one collection (Kayap 972)
dona, Carretera Hollfn—Loreto, entre Huamani y el Rfo
the pistillode is swollen at the base, suggesting a Pucuno (fl). ft. Palacios & C. Iguago 4619 (MO); km 50
viable pistil, but the* anthers are normally developed, Carretera Hollfn—Loreto (fl). W. Palacios & C. Iguago
4621 (MO).
possess a few pollen grains, and the thickened pis¬
tillode does not possess a stigma and is clearly short¬
er than the inner 3 stamens. It is possible that this 3. Ocotea imazensis van der Werff, sp. nov.
species is androdioecious, having staminate and her¬ TYPE: I Vru. Depto. Amazonas: Ragua Prov.,
maphrodite (lowers, but more collections are needed Distr. Imaza, Comunidad de Kampaenza, Ri¬
to confirm this. Gynodioecious flowers have been re¬ bera de la Quebrada Shimutaz, 05°55'S,
ported in Ocotea, but androdioecious flowers are not 78°19'W, 320 m. 23 Sep. 1994 (fl. immature
definitely known in Lauraceae; Chanderbali (2004) fr). A'. Jaramillo, It Apanu & S. Katip 477
suggested tbe presence of androdioecious flowers in (holotype, HUT; isotypes, HBG, k. MO, NY,
Endlicheria gracilis Kostermans. USM). Figure 3.
Volume 15, Number 2 van der Werff 371
2005 New Species of Ocotea
MISSOURI
BOTANICAL GARDEN
HERBARIUM
R. VA'.que/, 0. VJSQu*j,
MISSOURI BOTANICAL CARDIN HfRRARIUM <MU>
Figure 2. Ocotea hirtandra van der Werff, the MO isotype, Vasquez et al. 21335.
A congeneris raniulis inflorescentiisque dense tomen- ulate-cymose, the lateral branches ending in a
tellis, basibus foliorum parum decurrentibus, petiolis su¬ cyme, or racemose. Flowers yellow or cream-col¬
pra complanatis et floribus hermaphroditis recedit.
ored, hermaphrodite, ca. 3 mm diam., the pedicels
Trees, to 25 m; twigs terete or angular, densely less than the diameter ol the (lowers; tepals 1.3 mm
ferrugineous-tomentellous, the surface completely long, spreading at anthesis, elliptic-oblong, densely
covered, solid; terminal buds densely tomentellous. pubescent on the outer surface, slightly less so on
Leaves 7—10 X 3-7 cm, firmly chartaceous, evenly the inner surface; stamens 9, all 4-eelled, glabrous,
distributed along the twigs, green above, with small the outer 6 ca. 0.5 mm long, the lilament shorter
wax deposits on the lower surface, glabrous on up¬ than the anther, opening introrse, the cells arranged
per surface, with scattered curled hairs, these op¬ in 2 pairs, inner 3 stamens of same size, the lower
pressed or half-erect, on the lower surface the hairs 2 anther cells extrorse, the upper 2 lateral, glands
denser and becoming tomentellous on the major present at the base of the inner 3 stamens, stami-
veins; domatia lacking; apex acute or shortly acu¬ nodia present, columnar, with a slightly thickened
minate. the base acute, the lamina slightly decur¬ apex, glabrous, about as long as the filaments of the
rent on the petioles; lateral veins 5 to 7 pairs; pet¬ inner stamens; pistil glabrous, style distinct, ca. 0.2
ioles brown-tomentellous, 8-14 mm long, flat mm long. Immature fruit enclosed in the hypanthi-
above. Inflorescences 2.5-5 cm long, densely to¬ um; I older cupule 7 mm diam., 5 mm high, weakly
mentellous, in the axils of leaves or bracts, panic¬ double-margined, the outer margin erect and sur-
372 No von
MISSOURI
BOTANICAL GARDEN
HERBARIUM
C«thn nit- T. Arthur I oufiiljl i<m
niasttui nmoNtcot onuot n hi hhai<mu ,run
Figure 3. Ocotea imazensis van der Werff, the MO isotype, Jaramillo et al. 477.
passing the inner margin; fruit (possibly immature) 4. Ocotea laevifolia van der Werff. sp. nov.
9 X < 1 mm; tepals deciduous in fruit. TV PE: Peru. Depto. Amazonas: Prov. Bagua.
Distr. Imaza, Tayu Mujaji, 05°15'56"S,
Ocotea imazensis is best recognized by the com¬
78°22'07"W, 1200 m, 21 Oct. 1997 (fl), R. Vas-
bination ol densely pubescent twigs and inflores¬
quez, ,/. Lirio & (',. Pitug 24602 (holotype,
cences. the slightly decurrent leaf base, the flat pet¬
HUT; isotypes, HBG, MO). Figure 4.
ioles, and perfect flowers. The new' species does not
seem to be closely related to any of the other Ocotea Ex grege Ocoteae aeiphvllae, sed foliis laevibus, inflo-
species with perfect flowers in South America. Veg- rescentiis laxis et hahitu fruticoso recedit.
etatively it resembles a collection from the Arbo¬
Shrub, 2 m tall; twigs terete or ridged, near the
retum Jenaro Herrera in the Departamento de Lor¬
tip minutely appressed pubescent, soon becoming
eto (Cliota s.n, collected from tree 3/96, MO), but
glabrous, solid; terminal buds small, densely ap¬
that specimen has larger flowers with pubescent
pressed pubescent. Leaves 9-14 X 3.5—5.5 cm, el¬
stamens; it has not yet been identified.
liptic or ovate-elliptic, alternate, evenly distributed
Phenology. f lowering September.
along the twigs, ehartaeeous, brittle, glabrous on
both surfaces or minutely appressed pubescent on
Paratype. PERU. Dcpto. Amazonas: Bagua Prov.,
Distr. Imaza, Comunidad Aguaruna Pituim (fl). C. Diaz. A. young leaves, the base obtuse, slightly inrolled, the
Pena A- P. Atamain 7208 (MO). apex acuminate or acute, venation on upper surface
Volume 15, Number 2 van der Werff 373
2005 New Species of Ocotea
MISSOURI
BOTANICAL GARDFN
HtRBARIUM
H. v«tqu«2, J. Lino l G. Pi tug. i?**603
niBSOUNl WIIANICW liAHDfN »« HBAIiMffl (MU)
Figure 4. Ocotea laevifolia van der Werff, the MO isotype, Vasquez el <il. 24603.
immersed, midrib slightly raised, otherwise vena¬ slightly shorter than the ovary; receptacle cup¬
tion immersed on lower surface, lateral veins dif¬ shaped, densely pubescent inside. Fruits and cu-
ficult to discern, 6 to 8 pairs; petioles 7—10 mm pules not seen.
long, canaliculate, minutely appressed pubescent
Ocotea laevifolia is only known from the type
or glabrous. Inflorescences 5—7 cm long, in the ax¬
collection, made in the summit area of Germ Tayu,
ils of leaves, laxly flowered, paniculate near the
at an altitude of about 1200 m. Cerro Iayu is an
base, racemose more distally, moderately appressed
isolated sandstone hill with forested slopes and a
pubescent, the indument denser toward the flowers.
summit area covered with 2 m tall scrub. Several
Flowers hermaphrodite. 3—3.5 nun diam.. yellow,
other collections from Cerro Tayu are identified as
appressed pubescent, pedicels 3—5 nun long,
densely appressed pubescent; tepals ea. 1.5 mm undeseribed species (representing two species of
long, ovate-elliptic, appressed pubescent on both Cyathea in Cyatheaceae, one other species of Oco-
surfaces, half-erect at anthesis; stamens 9, all 4- tea, and one species of Phyllanthns, Kuphorbi-
celled. the cells in 2 superposed pairs, 1.2 mm aeeae) or are new records for Peru (Aratitiyopea
long, the filaments a little shorter than the anthers, lopezii (L. B. Smith) Steyermark & Berry. Xyrida-
filaments pubescent, outer 0 stamens with tin* cells eeae, and Euceraea nitida Martins, Flacourtiaceae).
introrse, inner 3 with the cells lateral-extrorse. It is likely that more novelties will be found with
glands present at the base of the inner stamens, further collecting on this rather small hill.
staminodia not seen, pistil 1.5 mm. glabrous, style Ocotea species with hermaphrodite flowers in
374 Novon
/ l J. Canpc« I63<«6
MISSOURI BOTANIC** tlAWKN ID UhAttlllM mi)
Figure 5. Ocotea lenitae van der Werfl, the MO isotype, van der Werff et al. 16546.
South America tend to belong to a few species Ex grege Ocoteae minarum, sed foliis obtusis, tepalis
groups, such as the (). insularis group, the 0. aei- inlus dense pubescentibus et fructibus globosis bene dis-
tincta.
phylla group, the 0. sodiroana group, and the 0.
indecora group. The strongly canaliculate petioles
Irees, to 45 m; twigs angled, moderately to
point to the (). aciphylla group, while distinctive
sparsely appressed pubescent, becoming glabrous
characters of the other groups are lacking. Its clos¬
with age; terminal buds slender, densely appressed
est relative may be an undescribed species from
pubescent. Leaves 10-18 X 3-7 cm, alternate,
the Cordillera del Condor in Kcuador, which differs
evenly distributed along twigs, firmly chartaeeous,
in having thinner, subopposite leaves with an in-
obovate, the base narrowly cuneate, tin* margin flat
rolled and decurrent leaf base. The two species
or slightly inrolled. the apex obtuse, the upper sur¬
share laxly flowered inflorescences and a pubescent
face glabrous, lower surface glabrous or with some
inner surface of the receptacles.
appressed hairs, a few pit-domatia sometimes, but
3. Ocotea lenitae van der Werff, sp. nov. TYPE: not always, present in the axils of lateral veins and
Peru. Depto. de San Martin: Kioja Prov., along visible as bumps on the upper surface, the margins
road Yorongos-La Florida near Rioja, 1000 m. of the pits glabrous; venation immersed on the up¬
31 Mar. 2001 (hermaphrodite fl), //. van dvr per surface, midrib and lateral veins raised on the
Werff' R. Vasquez, R. Gray & J. Campos 16546 lower surface; lateral veins 7 to 9 pairs; petioles 1 —
(holotype. Mill’; isotypes, CANR. [IRC, K. 2 cm long, shallowly canaliculate. Inflorescences
MO, NY. US, USM). Figure 3. .5-15 cm long, paniculate-cymose, sparsely to mod-
Volume 15, Number 2 van der Werff 375
2005 New Species of Ocotea
N? 5796961
LAURACEAE
Figure 6. Ocotea leptophylla van tier Werff, the MO isotype, Diaz et al. 8076.
erately appressed pubescent, in the axils of leaves very short, pubescent, glands present al the base
or cataphylls; hermaphrodite flowers ca. 5 mm of the inner staminodia, pistil 1.6 mm long, gla¬
diam., pistillate (lowers ca. 4 mm diam., yellow or brous, the style a little longer than the ovary; re¬
green, pedicels ca. 2 mm long. Hermaphrodite flow¬ ceptacle shallowly cup-shaped, with some ap¬
ers: tepals ca. 1.7 mm long, elliptic, spreading at pressed hairs inside. Infructescences branching
anthesis, the outer three sparsely appressed pubes¬ under almost 90°. Fruit globose, 1 cm diam., cupule
cent on the outer surface, the inner more densely small, platelike, 7 mm diam., pedicel and cupule
so; inner surface of tepals densely pubescent; sta¬ lenticellate.
mens 0. all 4-eelled, the cells in 2 superposed
Ocotea lenitae belongs to the Ocotea minarum
[»airs, the outer 6 stamens 1.3 mm long, the fila¬
group based on its hermaphrodite and pistillate
ments ca. 0.3 mm long, pubescent, the anthers I
mm long, glabrous, opening introrse; inner 3 sta¬ (lowers and its platelike, lenticellate cupule. It is
mens 1.5 mm long, the filaments pubescent, ca. 0.5 distinct within this group by the combination of ob-
mm long, the anthers glabrous; globose glands pre¬ ovate leaves with obtuse apex, presence of (few) pit-
sent at the base of the inner stamens; staminodia domatia, and the spreading tepals that are densely
lacking; pistil 1.5 mm long, glabrous, the style ca. pubescent on the inner surface. Most species in the
I mm long, the stigma discoid, receptacle shallow, (). minarum group have leaves with an acute apex;
glabrous inside. Pistillate flowers: tepals 1.5 mm in Peru only 0. obovata (Ruiz & I’a von) Muz is
long, staminodia 9, ca. 0.6 mm long, the filaments reported to have leaves with a rounded or obtuse
376 No von
apex, but that species does not have domatia. Oco¬ tered on llu‘ recent flush, older twigs leafless; base
tea tillettsiana Allen is (lie species most similar to obtuse to acute, the apex acute, the margin flat;
O. lenitae; it has leaves with a rounded apex, upper surface glabrous, except for the pubescent
spreading tepals at anthesis, and pit-domatia; it dif¬ midrib, lower surface glaucous, with scattered erect
fers in its sparser indument on twigs and flowers, hairs or almost glabrous, the indument denser on
in having shorter petioles (to I cm long), more dom¬
the major veins; domatia lacking: midrib and lateral
atia, and raised tertiary venation. Ocotea tillettsiana
veins immersed, tertiary venation slightly raised on
is an incompletely known species reported from
the upper surface, midrib raised, lateral veins
Guyana and adjacent Venezuela.
weakly raised and tertiary venation immersed on
I he pit-domatia on the leaves of Ocotea lenitae
lower surface; lateral veins 5 to 7 on each side;
are not numerous. Many leaves do not have these
petioles 10—15 mm long, densely pubescent, flat
domatia and one has to search carefully for their
above. Inflorescences to 7 cm long, in the axils of
presence. Several collections placed here in 0. len¬
bracts, rarely in the axils of leaves, along the young
itae had been previously identified as (). oblonga
twigs; densely tomentellous, the surface entirely or
(Meisner) Mez, and duplicates may have been dis¬
largely covered, paniculate-cymose. Staminate
tributed under that name.
(lowers green or cream-colored, 2.5—3 mm diam.,
It is a pleasure to dedicate this species to my
wife, Lenita, in recognition of her interest in and tepals ea. 1 mm long, ovale, half-erect at anthesis,
steadfast support of my work. densely pubescent on the outer surface, sparsely
Phenology. Flowering April-June; fruiting Jan¬ pubescent on the inner surface, but more densely
uary. so at the base, stamens 9. all 4-eelled, in 2 super¬
posed pairs, outer 6 stamens 0.6 mm long, the cells
Paratypes. PERU. Depto. San Martin: Rioja Prov.,
opening introrse or the lower two lateral, the fila¬
along road Rioja-Yorongos-I,a Florida (pistillate fl), II.
van tier Her//, It. Vasquez, H. Cray & J. Campos 165It) ment very short, 0.2 mm, pubescent; inner 3 sta¬
(MO); along road Yorongos-La Florida (young fr), //. van mens 0.8 mm long, the cells opening extrorse,
der Her//, R. Vasquez, R. Cray cY ,/. Campos 16545 (MO).
glands present at the base of the short filaments,
Depto. Amazonas: Quebrada Kayamas, l.ngar Cenepa
(berm, fls), hi Anriiash 170 (MO); Quebrada yutui entsa staminodia not seen, pistillode lacking or small,
(berm, fls), hi. Aneuash 217 (MO). ECUADOR. Pastaza glabrous; receptacle shallow, pubescent inside; pis¬
Prov.: Via Aura, I 15 km S of Coca (fr), P. Hurtado. W. tillate (lowers, fruits, and cupules not known.
Palacios & C. Iguago 1575 (MO); 35 kin SE of Curaray
(buds), h.spinoza 500 (\U). QCINE). INapo Prov.: Rio I’ax-
amino (buds), /,. Holm-Nielsen & S. Jeppesen HOI (A A LI, Ocotea leptophylla is easily recognized by its
MO); V ia Coca-Auca. km 17 (fr), HI Palacios 3514 (MO); glaucous, thin leaves and its short, densely tomen¬
PN Yasuni (fr). t. Crijaha 765 (MO, QCNE), (si). M. Au- tellous inflorescences, both of which are confined
lestia & T. Ahue 2766 (MO. QGNE). (berm. fls). M. Au-
to the recent growth. Rarely do a few older leaves
lestia 2272 (MO. QCNE), (buds), W. Palacios 2565 (MO.
QCINE); Ueserva F.tniea Huaorani (herm. fls). M. Auleslia persist, and those have a darker lower leaf surface.
5642 (MO, QCINE), (buds), M. Aulestia 5616 (MO. The indument on the lower leaf surface varies from
QCINE). (berm. fls). M. Aulestia 5655 (MO. QCINE).
sparse to almost lacking. The stamens have very
short filaments: normally Ocotea stamens have dis¬
6. Ocotea Icplophylla van der Werff, sp. nov.
tinct. narrow filaments, while the closely related ge¬
TYPE: Pt Tii. Depto. Amazonas: Bagua Prov.,
nus Rliodostemonoclaphne Rohwer & Kubitzki has
Distr. Imaza, Comunidad Aguaruna de Wanas
sessile or almost sessile anthers. Most species of
(km 92 Carretera Bagua—Imacita), Germs
Rhodostemonodaphne have clearly larger flowers
Chinim, 700-800 m, 29 Aug. 1996 (male II),
than those of O. leptophylla, but flowers of R. par-
C. Diaz, A. Pena, /.. Tsamajain & M. Roca
vifolia Madrinan are almost as small as those of O.
8076 (holotype. Ill I; isotypes. HBG, K. MO,
leptophylla. Still, anthers of R. parvifolia are ses¬
NY, US, USM). Figure 6.
sile, while those of 0. leptophylla have a distinct,
A eongeneris loliis subtus glaucis, infloreseentiis foli-
short filament; this is the main reason to describe
isque ad ramulos hornotinos limitatis distincta.
the new species in Ocotea rather than in Rhodos¬
Trees, to 25 m; young twigs angular, densely temonodaphne.
brown tomentellous, the surface completely cov¬ Phenology. f lowering August—September.
ered, older twigs glabreseent. dark, with scars from
fallen leaves; terminal buds densely brown tomen¬
Paratype. PERU. Depto. Amazonas: Ragua Prov.,
tellous. Leaves 1—1 I X 2—5 cm, membranaceous Distr. Imaza, Comunidad de Kampaenza, N. Jaramillo, R.
to chartaceous, elliptic to obovate-elliptic, clus¬ Apanu & S. Katip 4H7 (HUT, MO).
Volume 15, Number 2 van der Werff 377
2005 New Species of Ocotea
MISSOURI
BOTANICAL GARDEN
HERBARIUM
N? 5796958
7. Ocotea vasquezii van der Werff, sp. nov. midrib prominently raised, lateral veins and tertiary
TYPE: P eru. Depto. Amazonas: Prov. Bagua, venation raised on lower surface; lateral veins 7 to
Distr. Imaza. Yamayakat. 05°03'S, 78°20'W, 10 pairs; petioles 10—16 mm long, glabrous, ridged
480 m, 9 Nov. 1996 (fl). R. Vasquez, P. Stern, above. Inflorescences 7-20 cm long, paniculate cy-
R. Rojas <£• R. Aguilar 21739 (holotype, HUT; mose, in the axils of leaves or cataphylls near the
isotypes, HBG, K. MO. NY, US). Figure 7. tips of the branches, moderately to sparsely puber-
ulous. Flowers hermaphrodite, 2.5—3 mm diam..
Ocoteae atirrensi affinis, sed ramulis solidis, staminibus
white or yellow, pedicels ea. 2 mm long; tepals
verticelli 111 subglabris vel glabris et cupulis parvis, pi an is
recedi t. erect or half-erect at anthesis, ca. 1.5 mm long,
ovate, moderately to densely pubescent outside,
Ireelets or small trees, to 10 m; twigs angular to when moderately pubescent, the inner tepals with
terete, glabrous or with a few small, appressed a denser indument than the outer ones; stamens 9,
hairs, solid, terminal buds rather densely appressed all 4-celled, the' cells in 2 superposed pairs, the
pubescent. Leaves 15—35 X 7.5—15 cm, elliptic to outer stamens 6 with introrse cells, ea. 1.3 mm
broadly elliptic, alternate, evenly distributed along long, the filament as long as the anther, glabrous or
the twigs, papyraceous, the base acute to obtuse, w ith a few hairs along the filament, the inner 3 with
the margin flat, apex acute or acuminate, the acu¬ extrorse cells, ca. 1 mm long, the anther slightly
men I cm long, glabrous on both surfaces, domatia longer than the filament, glabrous or with a few
absent, venation immersed on the upper surface. hairs along the filament; globose glands present at