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

Coussapoa
Tree or shrub, (mostly) hemi-epiphytic, up to PERU. LORETO: Prov. Maynas, Rio Yaguasyuca, af-
20 m tall. Leafy twigs 5-13 mm, brown
fluent of Rio
puber-
Ampiyacu, nr. Brillo Nuevo, 2 Mar 1978
(2), Balick et al. 1021 (MO, U); road Zungarochaulous
to strigillose to hirtellous to strigose or to Puerto Almendra, 3 Dec 1964 (2), Dodson et al. 3017
(sub) velutinous, often also with a dense covering (F); Rio Yavari, behind Angamo Garrison, 5 Oct 1973
of (long) dark brown pluricellular hairs and (a), Lleras et al. P17178 (F, K, NY, P, S, U); Puerto
sometimes whitish arachnoid hairs as well. Lam- Almendra, nr. Rio Nanay, 23 Feb 1977 (a), Revilla
2378
ina coriaceous, ovate to elliptic, 13-32 x 11-20
(U); mouth of Rio Santiago, 3 Dec 1924 (2),
Tessmann 4673 (B, G, S, type collection).
cm, apex subacute to obtuse to rounded, base BRAZIL. AMAZONAS: Rio Negro, Uaup6s, Jauarite,
obtuse to subcordate, margin entire to subcren- 23 Aug 1945 (9), Froes 21264 (NY); Mun. Sao Paulo
ate; upper surface glabrous, lower surface densely
de Olivenca, Belem Creek, 26 Oct-11 Dec 1936 (2),
minutely puberulous in the areoles and on the Krukoff8994 (A, G, K, LE, NY, P, S, U); road Manaus-Porto
Velho, km 379, Rio Jutai, 12 Oct 1974
reticulum, to (sparsely) hirtellous on the (paral- (9), Prance et al. 22836 (MG, NY, U); Rio Javari, 7
lel) tertiary venation, appressed-puberulous to hours above Paumari, 16 Oct 1976 (2), Prance et al.
strig(ill)ose on the midrib and lateral veins, the 23846 (NY, U). PARA: Cupary, Sep 1931 (6), da Costa
whole surface with rather sparse to dense sub- 90 (IAN); upper Rio Cupary, Sep 1931 (a), Krukoff
1147
persistent white to pale brown arachnoid
(A, BM, G, K, NY, P, S, U), Krukoff 1187 (A,
hairs; BM, G, K, MO, NY, S, U); road Santarem-Palhao,
lateral veins 9-16 pairs, straight, main basal pair km 70, 15 Sep 1969 (8), M. Silva et al. 2591 (F, K,
branched, sometimes faintly so (in small leaves MG, NY, S, U, US). RONDONIA: Porto Velho, 15 Sep
sometimes unbranched), reaching the margin far 1975 (a), Mota et al. 154 (U).
below or sometimes just below the middle of the In the vegetative parts C. tessmannii shows
lamina; intercostal venation very to slightly similarities to C. villosa, but it is distinct from
prominent; petiole 3.5-9 cm long, 2-5 mm thick, the latter in having a ramified, and thus pluribrown(ish)
puberulous to hirtellous to subvelucapitate,
pistillate inflorescence and a unistamitinous,
often also with dark brown pluricellular nate flower. C. tessmannii shows distinct affinhairs
and sometimes arachnoid hairs; stipules 2- ities with C. cinnamomea, e.g., in the relatively
3(-9) cm long, yellowish to brown strigose to thick peduncle and branches of the pistillate insubhirsute
or also with dark brown pluricellular florescence, and it can be easily confused with
hairs. Staminate inflorescences branched; heads C. nitida. Several collections made in the Rio
many, crowded at the end of the branches, Tapajos area (da Costa 90, Krukoff 1147 and
(sub)globose, 2-4 mm diam., often fused; com- 1187, and M. Silva et al. 2591) differ from the
mon peduncle 1-3 cm long, brown puberulous other collections in the presence of a dense covto
hirtellous to short-velutinous or also (densely) ering of dark brown moniliform pluricellular (=
covered with dark brown pluricellular hairs; peri- granular) hairs on the leafy twig, petiole, and
anth ca. 1 mm high, puberulous; stamen one, inflorescence. Moreover, the lamina tends to be
just exceeding the perianth. Pistillate inflores- elliptic rather than ovate (as is normal in the
cences branched; heads 2-7, (sub)globose, 5-10
species). In the vegetative parts, these collections
mm, in fruit up to 15 mm diam.; common pe- show striking similarities to the aberrant pistilduncle
2-3 cm long, peduncle and branches 2- late collection (Prance et al. 26402) assigned to
4 mm thick, appressed puberulous to hirtellous C. villosa (see p. 104).
to short-velutinous or also with dark brown pluricellular
hairs; perianth ca. 1 mm high, (almost)
glabrous, sometimes muriculate.
40.
Interfloralbracts
Coussapoa trinervia Spruce ex Mildbraed,
(sub)spathulate to subpeltate, puberulous at the
Notizbl. Bot. Gart. Berlin 10:416. 1928. Type.
apex; extrafloral bracts often present on the
Venezuela. Terr. Fed. Amazonas: Rio Casibranches
of staminate inflorescences.
quiare, between Lago de Vasiva and Rio Pa-
Distribution (Fig. 9). Amazon Basin cimoni, 1853-1854
(Brazil,
(2), Spruce 3464 (holotype,
Peru, and Colombia); in upland and riverside B; isotypes, BM, BR, G, GH, K, LE, NY, OXF,
forest.
P). Fig. 52.
Specimens examined. COLOMBIA. VAUPES: Rio
Tree, terrestrial, up to 20 m tall, mostly with
Papuri, nr. Montfort Mission, 3 Sep 1943 (s), P. H. stilt roots. Leafy twigs 3-8 mm thick, glabrous.
Allen 3103 (COL).
Lamina coriaceous, subobovate to obovate to
95