1953} 



REVISION OF MACROLOBIUM 



295 



Leaves about 6-jugace, the pairs usually about 18 mm. apart. Leaflets averag- 

 ing 6-7 cm. long, 2-3 cm. wide, oblong, oblong-ob lanceolate, or oblong-obovate, 

 the margin entire. Inflorescence usually about 4-8 cm. long, the peduncle averag- 

 ing 15-25 mm. long; pedicels about 4 mm. long; bracteoles about 6 mm. long, 4 

 mm. wide, elliptic to oblong. Sepals most often 4 mm. long, 1 mm. wide. Petal 

 blade generally 4-5 mm. long, 5-6 mm. wide, the claw about 5 mm. long. Fila- 

 ments about 16 mm. long. 



Type Collection: /. Martin s.n., "Cayenne" (HOLOTYPE G, isotypes K, P, 

 VEN-frag.). A letter from Dr. Hochreutiner, then at Geneva, to Dr. Pittier, who 

 was at the National Herbarium of Venezuela, was found attached to one of the 

 specimens of this species from the latter institution. In it Dr. Hochreutiner ex- 

 plained that the hoiotype of this species is a sterile branch and enclosed a pho- 

 tograph and two leaflets of it. The isotype from the Kew Herbarium is fruiting, 

 the Paris isotype is flowering and both are certainly just as valuable as the hoio- 

 type, although the species is recognizable from most of the other species even 

 vegetatively. 



Additional Specimens: BRAZIL: Rio de Janeiro, Glaziou 13759 (P). Para: Para, Sept. 

 1947, Black 47-1751 (IAN, NY, U); Lago de Faro, July 1903, Ducke 3727 (G); Lago de 

 Faro, Aug. 1907, Ducke 8339 (G); Lago de Faro, May 1911, Ducke 11694 (G); Rio Tapajoz, 

 near Bobure Falls, July 1923, Ducke 16944 (U); Belem, May 1896, Huber 122 (G, US); 

 Thome Assu, Rio Acara, Dist. Acara, Aug. 1931, Mexia 6027 (F, G, GH, MO, NY, U, UC, 

 US); Belem, June 1951, Pires 3300 (IAN, NY); Rio Para, May 1832, Poeppig 2998 (F, G, 

 P, US); Rio Tapajoz, Santarem, Spruce 638 (P); Santarem, June 1850, Spruce 935 (P); vie. 

 Santarem, June 1850, Spruce s.n. (G, NY, W). Amazonas: Igarape do Cachoeira Grande, 

 Manaos, Aug. 1940, Ducke 347 and 347a (Y); Barba, Rio Madeira, April 1937, Ducke 478 

 (A, F, MO, NY, US); Igarape do Cachoeira Grande, Manaos, Jan. 1941, Ducke 576 (F, IAN, 

 MO, NY, US); Cucuhy, ad Rio Negro, Sept. 1935, Ducke 35189 (G, RB, U, US); Rio Negro, 

 Padauiry, Uacuacu, Oct. 1947, Froes 22490 (IAN, NY, U); Rio Padauiri, Igarape Cast- 

 anha, Oct. 1947, Froes 22558 (IAN, NY); Rio Urubu, Sept. 1949, Froes 25224 (IAN, RB), 

 25278 (IAN, NY); Rio Urubu, Sao Francisco, Oct. 1949, Froes 25490, 25507 (IAN, NY); 

 near mouth of Rio Embira, tributary of Rio Tarauca, July 1933, Krukoff 5186 (A, F, G, 

 MO, NY, U, UC, US); Boa Vista, Rio Branco, Sept. 1913, Kuhlman 3236 (U, US); Maues, 

 Nov. 1946, Pires 43 (IAN, NY); prope San Gabriel do Cachoeira ad Rio Negro, Jan. -Aug. 

 1852, Spruce 2258 (G, GH, P); prope Panure ad Rio Uaupes, Oct.-Jan. 1852-53, Spruce 

 2439 (G, GH, P, W); igapo near Rio Taruma, Rio Negro, July 1874, Traill 183 (P); bei 

 Boa Vista, Rio Branco, Oct. 1908, Vie 7581 (G, UC, US); Rio Branco, near Boa Vista, 

 Oct. 1908, Vie 7612 (G); Cachoeira Grande bei Manaos, July 1910, Vie 8866 (G, UC). 



PERU: Iquitos on shore of Itaya, July 1924, Tessmann 3677 (G, NY). 



COLOMBIA: Vaupes, Rio Cuduyari, Aug. 1944, Allen 3300 (US); Mita, Rio Vaupes, 

 Sept. 1939, Arbelaez & Cuatrecasas 6746 (COL, F, US). 



VENEZUELA: Rio Orinoco, Bonpland 1028 (P). Amazonas: Esmeralda, alto Orinoco, 

 May 1942, Williams 15462 (F, NY, US, VEN); Cataniapo, Raudal de Atures, May 1942, 

 Williams 15898 (US, VEN). Bolivar: Rio Tonoro, alto Rio Paragua, Aug. 1943, Cardona 

 817 (NY, US, VEN); Ri'o Paragua, Dec. 1951, Maguire 32713 (F, G, K, MO, NY, US, VEN); 

 Sabana de Monte Oscuro, Bajo Coura, May 1939, Williams 12057 (F, VEN); La Paragua, 

 March 1940, Williams 12594 (F, UC, US, VEN); El Tigre, cerca del Rio Cuchivero, June 

 1940, Williams 13309 (F, UC, US, VEN). 



BRITISH GUIANA: Berbice, right bank of Berbice R., opposite to Yawakuri R., June 

 1919, Hohenkerk (F.D.No.) 798 (BGF); Lama Creek, April 1887, Jenman 3695 (BM, NY); 

 Lama Creek, May 1896, Joseph s. n. (NY); Roraima 1842-43, Schomburgk 460 & 461 (P, 

 W); Rio Branco, Sept. 1842, Schomburgk 736 (P, W); Rio Branco, Schomburgk 797 (F, G, 

 GH, P, US, W); Schomburgk 894 (W). 



SURINAM: Boven Nickerie, Feb. 1915, Gonggrypp & Stahel (For. Bur. No.) 1085 (U); 

 Corantyne R., Kaboerie Creek, June 1916, Herb. Surinam 2217 (IAN, U, US); Maratoka, 

 Nov. 1917, Herb. Surinam 3423 (U); Surinam, Hostmann 76 (F, NY, P, W); Surinam, Host- 

 mann 686a (MO, P, U, W); Surinam 1842, Hostmann & Kappler 664 (F, G, MO, P, US, W); 

 Para R., March 1838, Splitgerber s. n. (W); Akwansa-Nickerie, Sept. 1916, Stahel & Gong- 

 grypp 3594 (U); Wullschlagel 959 (W). 



FRENCH GUIANA: Martin 7 (P); Poiteau s. n. (P); Acarouany, 1858, Sagot 184 (P, W); 

 Maroni, on sea coast, June 1857, Sagot 1062 (P, W); Acarouany, May 1855, Sagot s. n. (P). 



