Cecropiaceae: Coussapoa and Pourouma, with an ... - CNCFlora

190 Flora Neotropica
Pourouma napoensis and P. herrerensis have
been included in this revision after submission
of the (pre-review) manuscript and are, therefore,
placed at the end of the systematic treatment,
and not after P. hirsutipetiolata and P. mollis,
respectively.
24. Pourouma napoensis C. C. Berg, Brittonia
42: 59-65. 1990. Type. Ecuador. Napo: Re-
serva Biologia Jatun Sacha, 14 Aug 1987 (6),
Palacios 1874 (holotype, QCNE; isotypes,
AAU, BG, MO, NY, QAME). Fig. 92.
Tree, up to 25 m tall. Leafy twigs 1-2.5 cm
thick, yellow-hirsute, pluricellular hairs absent.
Lamina 7-fid to -parted, ca. 25-45 x 25-45 cm,
coriaceous, apex acuminate, base deeply cordate
with overlapping lobes; upper surface smooth to
slightly scabrous, yellow-hirsute to -hirtellous on
the whole surface or only on the main veins,
lower surface yellow-hirsute to -hirtellous on the
veins, arachnoid hairs in the areoles and on the
reticulum; lateral veins 16-25 pairs; petiole ca.
25-40 cm long, yellow-hirsute; stipules 10-16 cm
long, outside yellow-hirsute, inside glabrous, caducous.
Staminate inflorescences ca. 12-22 cm
long, ca. 8-14 cm wide; peduncle 4-8 cm long,
peduncle and branches yellow-hirtellous to -pu-
In the shape, dimensions, and indument of the
lamina this species resembles P. oraria. It differs
from the latter in the staminate flowers with their
connate tepals and fully connate filaments. These
features suggest a close relationship to P. hirsu-
tipetiolata.
25. Pourouma herrerensis C. C. Berg, Candollea
44(2): 513. 1989. Type, Peru, Loreto, Prov.
Requena, Jenaro Herrera, Reserva Forestal,
tree 4/122, 2 Oct 1985 (d), Spichiger et al. 1995
(holotype, G; isotype, BG). Fig. 93.
Tree, up to 25 m tall. Leafy twigs 3-6 mm
thick, minutely puberulous to hispidulous (and
+ scabrous) or also with much longer, yellow
hairs, pluricellular hairs dark brown and rather
sparse. Lamina entire, oblong to elliptic to ovate,
8-20 x 3-11.5 cm, (sub)coriaceous, apex shortacuminate,
base acute to rounded; upper surface
sparsely appressed-puberulous on the midrib or
the whole surface covered with long, yellow hairs,
lower surface appressed-puberulous on the main
veins or also with long yellow hairs, arachnoid
hairs in the areoles and on the reticulum; lateral
veins 9-14 pairs, basal pair unbranched or
branched, the basal part of these veins forming
the basal part of the leaf margin (thus not separated
from the margin by mesophyll), tertiary
venation slightly prominent; petiole 3-10 cm
berulous; flowers (sub)sessile, in
long, minutely puberulous or also with long, yelglobose
heads, low
these 7-12 mm diam.; perianth, tubular, 1-2 mm
hairs; stipules 3.5-8 cm long, caducous, outside
high, puberulous at the apex; stamens 3-4, filadensely
puberulous and with brown, pluricellular
ments completley connate, 4-6 mm long. Pistilhairs,
or also with long, yellow hairs,
sometimes
late inflorescences up to 10 cm long and up to
only a few appressed ones, inside
12 cm wide, branched; peduncle 3-5 cm sparsely short-pubescent. Staminate infloreslong,
cences
peduncle and branches yellow-hirsute to -hirtel- up to 10 cm long and up to 9 cm wide;
lous; flowers ca. 40-70; pedicel 0.3-0.5 cm, in
peduncle 2-6 cm long, peduncle and branches
fruit up to 1.2 cm long; perianth ca. 5 mm densely puberulous to short-velutinous or also
long, with
yellow-hirsute to -hirtellous, sparsely so in the long, yellow hairs; flowers sessile or pedicellate,
most of them in globose heads, numerous
uppermost part; stigma peltate.
and 3-4 mm diam. or less
Distribution (Fig. 81). Ecuador (Napo), in non-
(5-12) and 5-8 mm
inundated forest, at low altitudes.
diam.; tepals ca. 1 mm long, connate, forming a
+ urceolate perianth, densely hairy; filaments
Specimens examined. ECUADOR. NAPO: Reserva exceeding the tepals, free. Pistillate inflorescences
Biologica Jatun Sacha, Rio Napo, 8 km below Puerto up to 14 cm long and 9 cm wide; peduncle and
Misahualli, 4 Sep 1987 (2), Cer6n M. 2019 (BG); 8 km branches short-velutinous; flowers 7-25, in 1-4
SE of Tena, 30 Aug 1960 (2), Grubb et al. 1545 (K,
NY); Reserva Biologica Jatun Sacha, Rio Napo, 8 km
+ distinct clusters, pedicels up to 0.7 cm long;
below Puerto Misahualli, 2 Oct 1986 (2), Palacios 1337 perianth yellow-velutinous, except for the apex;
(BG), 14 Aug 1987 (a), Palacios 1874 (BG, type col- stigma subpeltate.
lection of P. napoensis); Lumbaqui, 12 May 1987 (a), Distribution (Fig. 81). Peru (Loreto), in non-
Pennington et al. 12244 (BG, K).
inundated forest.
Specimens examined. PERU. LORETO: Prov. Requena,
Jenaro Herrera, Aug-Sep 1976 (6), Bernardi s. n.