Trichilia surumuensis C.DC., Notizbl. Bot. Gart. Berlin-Dahlem

Pennington, Terence D., 2016, Systematic Treatment Of American Trichilia (Meliaceae), Phytotaxa 259 (1), pp. 18-162 : 73-74

24. Trichilia surumuensis C.DC., Notizbl. Bot. Gart. Berlin-Dahlem 6: 503 (1917); T. D.Penn., Fl. Neotrop. 28: 121 (1981). Type:— BRAZIL. Roraima, Serra do Mel , fl., Ule 8186 (holotype, B, destroyed; lectotype, K chosen here, isolectotype, MG). Map 30

Illustration: FN28: 122, fig. 19 (1981). MAP 30. Distribution of Trichilia surumuensis C.DC. Solid dots, distribution pre-1981, open dots new records 1981–2010.

Abbreviated Description. Indumentum of simple hairs, leaflets 5–6, usually alternate, 11–17 cm long, 3.6–6 cm broad, elliptic to oblanceolate, petiole with a pair of minute caducous scales 0.5–1 mm long, ca. 1–1.5 cm above the base of petiole, inflorescence 12–20 cm long, a slender thyrse, petals (3–)4, 3.5–4 mm long, free, imbricate, filaments completely united, anthers 7–8, nectary patelliform, ovary 3-locular, locules with 2 collateral ovules, style-head conical, fruit 1.2–2 cm long, 3-valved, oblong to obovoid, appressed puberulous, seed solitary, completely surrounded by a fleshy arillode.

Distribution & Ecology. Southern Guyana, Roraima and Pará, Brazil, in the understorey of lowland rain forest, ascending to 600 m elevation.

Additional Collections Examined. GUYANA. Kanuku Mts., Rupununi R., Puwib R. (NW0359), Jansen-Jacobs et al. 214 (U); Rupununi District, Kanuku Mts., Crabwood Creek, Camp 2 (NW0359), Jansen-Jacobs et al. 3324 (U); Upper Essequibo region, Rewa River, near Corona Falls (NW0358), Jansen-Jacobs et al. 5674 (K), 5798 (K, US), 6139 (U). Upper Takutu-Upper Essequibo, Wassarai Mts. (NW0159), Clarke et al. 8098 (K); Upper Takutu-Upper Essequibo, S Rupununi Savanna, Aishalton Mts. (NW0259), Henkel et al. 3424 (K); Upper Takutu-Upper Essequibo region, NW Kanuku Mts., Nappi Creek watershed (NW0359), Hoffman & Foster 3600 (K).

BRAZIL. Pará: Rio Maicuru, Igarapé od Mutum (SW0054), Jangoux & Ribeiro 1547 (K, NY); Rio Maicuru, Lageiro (SW0154), Ribeiro & Jangoux 1470 (K). Roraima: Municipio Boa Vista, Maracá Reserve (NW0361), Stannard & Annais 781 (K).