Ouratea acuminata (DC.) Engl.
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Authority
Maguire, Bassett. 1989. The Botany of the Guayana Highland- Part XIII. Mem. New York Bot. Gard. 51: 1-127.
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Family
Ochnaceae
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Scientific Name
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Description
Species Description - Tree. Leaves lance-oblong to oblong-elliptic, acuminate at apex, obtuse to rounded at base, 7-15 cm long, 1.5-6 cm wide, margins obscurely crenulate to subentire; lateral nerves 17-20 each side, the more conspicuous ones of the upper surface arcuately spreading, the secondary nerves and tertiary veinlets subhorizontally spreading. Inflorescence paniculate with 2-4 lateral axes, 5- 9 cm long, 7-10 cm wide. Pedicels 9-12 m m long. Petals subflabelliform, rounded at apex, 7- 8(-10) mm long, 5-7(-8) mm wide. Flower huds ovoid, narrowed to a subacute or subobtuse apex, 5 mm long. Gynophore in anthesis 0.3-0.5 m m long, equaling or shorter than the ovary. Fruiting torus depressed-sphaeroidal. Mature drupe oblong or obovoid-oblong, 6-8 mm long.
Distribution and Ecology - Amazonian regions of Colombia, Brazil, and Venezuela in mixed woodland and savanna at altitudes of 100-250 m.
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Discussion
Gomphia acuminata DC, Ann. Mus. Natl. Hist. Paris 17:419. p/. 14. 1811
Specimens examined. COLOMBIA, amazonas-vaupes: Rio Apaporis, entre los rios Kananari y Pacoa, 250 m, 1-15 Dec 1951, Garcia-Barriga 13981 (NY). VENEZUELA, territorio federal amazonas: Near Isla Castillito, Rio Orinoco, 100 m, 12-24 Jan 1930, Hoh & Gehriger 232 (NY, US); Maroa, Guainia, Alto Rio Negro, 127 m, en selvas riberefias periodicamente anegadas, 21 Feb 1942, Williams 14446 (NY, VEN); mixed montane forest, trail from Base Camp, Cerro Sipapo, 125 m, 25 Jan 1949, Maguire & Politi 28608 (NY); same locality, 25 Jan 1949, Maguire & Politi 28625 (K, M O , N Y , P, US, VEN); mixed woodland, at Intermediate Camp, Cerro Sipapo, 600 m, 2 Feb 1949, Maguire & PoliU 28735 (MO, N Y , P, VEN); Lago Paciba, Rio Paciba, Rio Casiquiare, 120 m, 3 Apr 1953, Maguire & Wurdack 34813 (MO, N Y , P, VEN); along Rio Pacimoni, between Cano Arapacua and Cafio Boridahari, 120 m, 7 Apr 1953, Maguire & Wurdack 34897 (NY, VEN); along Rio Negro just below San Carlos, 100 m, 12 Apr 1953, Maguire & Wurdack 34996 (MO, N Y , VEN); Cafio Temi, Rio Atabapo, just below Yavita, 120 m, 9 Jun 1959, Wurdack & Adderiey 42889 (MO, N Y , P, VEN); Reserva Forestal El Sipapo, alrededores campamento Laja de Garza, May 1971, Blanco 1118 (VEN); sabana al pie SE del Cerro Moriche, 4''43'N, 66''22'W, 120 m, 19 Feb 1971, Huber 3208 (VEN); Dept. Atabapo, Cafio Caname (afluente derecho del medio Rio Atabapo), sabanita al N del Medio Caiio Caname, 18 km arriba (al E) de la boca, 3°40'N, 67°22'W, 100 m, 29 Apr-^ May 1979, Huber, Tillett & Davidse 3746 (VEISO; sabana ubicada a aprox. 2 km at N del Rio Guayapo medio, 4°16'N, 67°23'W, 100 m, 17 Jul 1980, Huber & Tillett 5525 (VEN).