Trichilia clausseni C.DC.

Pennington, Terence D., 2016, Systematic Treatment Of American Trichilia (Meliaceae), Phytotaxa 259 (1), pp. 18-162 : 71-72

22. Trichilia clausseni C.DC. in Mart., Fl. Bras. 11 (1): 207 (1878); T. D.Penn., Fl. Neotrop. 28: 78 (1981). Type :— BRAZIL. without exact locality, fl., Burchell 5216 (lectotype, K (designated FN 28: 79 (1981); isolectotype, P). Map 28

MAP 28. Distribution of Trichilia clausseni C.DC. Solid dots, distribution pre-1981, open dots new records 1981–2010.

For synonymy see FN 28: 78 (1981). Illustration FN 28: 80, fig. 10 (1981).

Abbreviated Description. Indumentum of simple hairs, leaves trifoliolate or rarely unifoliolate, leaflets opposite, mostly 5.5–13 cm long, 1.3–3.2 cm broad, narrowly elliptic or oblanceolate, densely glandular-punctate and/or -striate, inflorescence 1.5–12 cm long, usually clustered on new growth in the axils of caducous scale-leaves, a slender thyrse, petals (4–)5, mostly 2.5–3 mm long, free, imbricate, filaments free or fused for up to two thirds of their length, anthers 10, nectary annular to patelliform, ovary 3-locular, glabrous, locules with 2 collateral ovules, style-head 3-lobed, fruit 0.8–2 cm long, 3-valved, ovoid, oblong or elipsoid, pubescent to glabrous, seed solitary, completely covered by a thin arillode.

Distribution & Ecology. Southern Brazil, Paraguay, northern Argentina and Bolivia, and recently discovered in eastern Peru, in seasonally dry semi-deciduous forest up to 1800 m elevation, and along river margins in gallery forest.

Representative Additional Collections. BRAZIL. Mato Grosso do Sul: Municipio Bonito, Cachoeira do Rio Aquidaban (SW2156), Hatschbach et al. 74126 (K). Minas Gerais: near UNAT (SW1646), Ratter & Gifford 4366 (K). Paraná: BR-373, near km 421, Municipio Candoi (SW2552), Hatschbach et al. 68759 (K).

BOLIVIA. Chuquisaca: Prov. H. Siles, Monteagudo to Sucre km 20 (SW1963), Beck & Liberman 9375 (NY); Tomina, Rio Limón valley (SW1964), Wood 12592 (K). La Paz: Frans Tamayo, Apolo (SW1468), Wood et al. 19827 (K). Santa Cruz: Vallegrande Province, R. Quebrada Seca (SW1863), Nee 38469 (K). Tarija: Prov. Arce, 29.2 km S of Emboroza-Sidras road (SW2264), Solomon 9864 (K).

PARAGUAY. Alto Paraná: Centro Forestal Alto Paraná (SW2554), Hahn 2052 (K). Concepción: San Luis de la Sierra National Park (SW2257), Zardini & Vera 40893 (K).

PERU: Junín, Satipo, Puerto Ocopa (SW1174), Dexter et al. 6426 (E, MOL), 6747 (E, MOL); Pennington 950 (E, MOL).

ARGENTINA. Corrientes: Santo Tome, 22 km NW of Santo Tome (SW2856), Tressens et al. 4061 (K). Misiones: Dep. Iguazú, Iguazú National Park (SW2554), Tressens et al. 4468 (K).