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

Coussapoa
ACRE: Rio Purus, nr. mouth of Rio Macaua, tributary
of Rio Iaco, 21 Aug 1933 (6), Krukoff5596 (A, BM,
F, G, K, LE, M, MO, NY, Q, S, U, US). AMAPA: Rio
Jari, 2 km E of Arumanduba, 27 Jun 1961 (2), W. A.
Egler et al. 46027A (IAN, MG, MO, NY, S, U).
AMAZONAS: Rio Solim6es, B6ca de Manaquiri, 3 Oct
1973 (6), Berg et al. P17591 (F, M, MO, P, S, U), 3
Oct 1973 (2), Berg et al. P17592 (F, MO, K, P, S, U);
Rio Japura, Mun. Maraa, Ilha dos Macacos, 30 Oct
1977 (8), Damiao 2503 (INPA); Rio Japura, Costa do
Jacitaria, 8 Dec 1977 (8), Damido 2817 (INPA); Rio
Solimoes, Fonte Boa, 9 Oct 1945 (6), Ducke 1795 (A,
F, K, MG, NY, R, RB, US); Rio Japura, 19 Sep 1904
(9), Ducke (HAMP) 6782 (S, U); Rio Ia, 9 Sep 1906
(9), Ducke (HAMP) 7715 (BM, G); Rio Tonantins, 26
Oct 1949 (6), Frogs 25531 (IAN); Mun. Sao Paulo de
Olivenca, nr. Palmares, 11 Sep-26 Oct 1936 (6), Krukoff
8401 (A, B, BM, F, G, K, LE, NY, P, S, U, US);
Rio Solimoes, Mamia, 20 Jan 1924 (8), Kuhlmann 1178
(RB); Rio Javari, behind Palmeiras (army post), 6 Aug
1973 (8), Lleras et al. P17197 (C, K, M, MO, NY, U,
US). PARA: Rio Tajapurir, Ant6nia Lemos, Igarape Pixuna,
19 Jul 1948 (2), Black 48-2949 (IAN); Rio Tajapuri,
Ilha Sao Sebastiao, Nazar6, 31 Jul 1948 (6),
Black 48-3017 (IAN); Gurupa, 27 Jan 1916 (6), Ducke
(HJBR) 13066 (=HAMP 16003) (BM, RB); Rio Tajapurfi,
- 21 cm, apex acute to obtuse to shortly acuminate,
base cordate, margin entire or subcrenate; upper
surface glabrous, lower surface densely minutely
puberulous in the areoles and on the reticulum,
(rather) sparsely hirtellous to puberulous on the
other veins, on the main veins and margin also
sparse white arachnoid hairs; lateral veins 9-11
pairs, slightly curved, basal pairs branched,
reaching the margin below the middle of the lamina,
other lateral veins often poorly branched
(furcate); intercostal venation very prominent;
petiole 8-13 cm long, sparsely to densely minutely
puberulous and sparsely covered with distinctly
longer straight stiff hairs; stipules 0.5-3.5
cm long, brownish subsericeous and with a dense
covering of reddish-brown pluricellular hairs.
Staminate inflorescences branched; heads many,
globose, ca. 4-6 mm diam.; common peduncle
1.5-3 cm long, puberulous to hirtellous, on the
branches to tomentellous, mixed with sparse to
dense reddish-brown pluricellular hairs; perianth
(), Martius s.n. (FI); "Jaguary" (=?Jaguar- ca. 1 mm high, densely minutely puberulous;
ari), Aug (9), Martius s.n. (B, BR, M, U, lectotype col- stamens three, exceeding the perianth. Pistillate
lection), "Insulae Archipelagi Paraensis," Aug (d and inflorescences unbranched; heads ellipsoid to
2), Martius s.n. (or 2673) (M, L, LE); Rio Jari, between
Monte Dourado and Caracura, 18 Nov 1967 (9), Oliv- obovoid, ca. 20 x 10, in fruit up to 15 mm diam.;
eira 3627 (IAN, NY); Rio Jari, between Monte Dour- peduncle 1-2 cm long, reddish-brown puberuado
and Patricia, 27 Mar 1970 (6), N. T. Silva 303 lous to hirtellous; perianth ca. 2 mm high, dense-
(IAN).
ly reddish-brown puberulous. Interfloral bracts
subpeltate, often only a few or sometimes absent.
Distribution (Fig. 8). Costa Rica (Alajuela); in
rain forest up to 800 m.
Coussapoa nitida can easily be confused with
C. tessmannii, due to the strong overall similar-
ities. However, C. nitida is clearly distinct from
the latter in the absence ofinterfloral bracts. Oth-
er differences occur in the indumentum, espe-
cially in that of the petiole, and in the diameter
of the peduncle of the pistillate inflorescence. C.
nitida appears to be related to C. cupularis and
more remotely to C. orthoneura and C. arach-
noidea.
29. Coussapoa nymphaeifolia Standley, Proc.
Biol. Soc. Wash. 37: 50. 1924; Burger, Field-
iana Bot. 40: 134, t. 22. 1977. Type. Costa
Rica. Alajuela: Road to San Carlos valley,
Buena Vista, 16 Apr 1903 (2), Cook & Doyle
157 (holotype, US). Fig. 40.
Tree, hemi-epiphytic or terrestrial, ca. 20 m
tall. Leafy twigs 5-17 mm thick, densely mi-
nutely puberulous or also with dense reddish-
brown pluricellular hairs. Lamina coriaceous,
(broadly) elliptic to ovate, (9-)24-29 x (6-)18-
Specimens studied. COSTA RICA. ALAJUELA: Road
to San Carlos Valley, Buena Vista, 16 Apr 1903, (2),
Cook & Doyle 157 (US, type collection); canton San
Carlos, Villa Quesada, 21 Feb 1939 (8), A. Smith 1632
(F, MO). HEREDIA: Nr. Puerto Viejo de Sarapiqui, 3
Apr 1974 (2), Hartshorn 1436 (U).
77
Although C. nymphaeifolia is reminiscent of
C. villosa in general appearance and also to C.
duquei in the nature of the pistillate inflores-
cence, these species are probably unrelated. The
occurrence of 3-staminate flowers and other sim-
ilarities in leaf characters and the staminate in-
florescence suggest a relationship with C. lon-
gepedunculata.
30. Coussapoa oligocephala Donnell Smith, Bot.
Gaz. 40: 11. 1905. Type. Guatemala. Alta Ve-
rapaz: Cubilguitz, Apr 1904 (6), Von Tuerk-
heim 8659 (=11.942) (holotype, US; isotype,
B). Fig. 41.