COLLECTED IN SOUTH AMERICA, 1 885- 1 886 307 



Cleidion tricoccxim Baill. Adansonia, 4 : 370. 1863-64. June, 

 of Rivers Beni and Madre de Dios, Aug. 1886 (no. 2652). 



Tragia Fendlcri Muell. Arg. Linnaea, 34: 179. 1865-66. June. 

 of Rivers Beni and Madre de Dios, Aug. 1886 (no. 1863). 



Tragia Sellowiana glabrifolia Britton var. nov. 



Differs from the type chiefly in its subglabrous, larger leaves, 

 Reis, 1500 ft., June 1886 (no. 1285). 



Tragia volnbilis L. Sp. 980. Guanai, 2000 ft., May 1886, 

 (no. 2595). The same as Mandon's no. 1069. 



Dalechampia Btirchellii Muell. Arg. Mart. Fl. Bras. II 2 : 649, 

 fide Britton. Reis, 1500 ft., June 1886 (no. 2088. No. 2162 

 from Falls of Madeira appears to me identical). 



Dalechampia scandens L. Syst. ed. XIII, 720. Guanai, 2000 ft., 

 May 1886 (no. 1347). 



Dalechampia triphylla Lam. Encyc 2 : 258. Guanai, 2000 ft., 

 May 1886 (no. 12 15). 



Mabea fistulifera Mart. Reise Bras. 479. Guanai, 2000 ft., 



May 1886 (no. 1178). 



Mabea angustifolia longifolia Britton, Mem. Torn Club, 4 : 258. 



Mapiri, 2500 ft., May 1886 (no. 1177). 



Mabea panicidata Spruce ex Benth.; Hook. Kew Journ. 6 : 

 367. 1854. June, of Rivers Beni and Madre de Dios, Aug. 

 1886 (no. 271 1), and Falls of Madeira, Brazil, Oct. 1886 (no. 2609). 



Omphalea diandra L. Syst. ed. X., 1264. June, of Rivers Beni 

 and Madre de Dios, Aug. 1886 (no. 125 1). 



Maprounea Guianensis Aubl. PL Gui. 2: 893. pi. 34.2. 

 Yungas, 4000 ft., 1885 (no. 1176). 



Sapium biglandidosum Muell. Arg. Linnaea, 32: 116. 

 1863. Falls of Madeira, Brazil, Oct. 1886 (nos. 1238 and 1239). 



Sapium rhombifolium sp. nov. 



Glabrous : branches elongated, erect or strongly ascending, 

 slender, flexuous, the internodes about 1-2 cm. long : petioles 

 .5-1 cm. long, purple: blades .5-1 dm. long, 2.5-4 cm. broad, 

 rhomboidally ovate, acute at the base, abruptly short-acuminate 

 and obtuse at the apex, thickish, pale green, shining above, the 

 venation sharply prominent on both sides, the secondaries about 

 10 pairs, slender, diverging at an angle of about 45 °, the veins 



