Rusby: An Enumeration of South American Plants 137 



where it is sometimes i-i.jcm. broad, the branches elongated, 

 divergent or sometimes slightly drooping : spikes 1.5-4 cm. long, 

 about 5 mm. broad, the joints mostly 5-7 mm. long, irregular in 

 number, mostly floriferous throughout their length, the flowers 

 rather deeply immersed. 



Mapi 



1543)- 



inaequidentatum 



Glabrous, the leaves finely papillose : branchlets short, stout, 

 divergent: petioles .5-1 cm. long, very stout, margined: blades 

 5-7 cm. long, 3-4 cm. broad, obovate, abruptly contracted into 

 the petiole, lightly, and for the most part very inaequilaterally 

 retuse at the rounded or sub-truncate summit, entire, extremely 

 thick : spikes mostly solitary or two together, simple, about 2 or 

 2.5cm. long, 3mm. broad, exclusive of the fruit: the joints 

 2-4 mm. long, 2-flowered at the summit, the flowers deeply im- 

 mersed in pits having a sharply elevated light-colored, thin mar- 

 gin : fruit 4 mm. long, 3.5 mm. broad, conically ovoid, blunt or 

 truncate, light-brown and granular, the summit lighter. 



Guanai, 2000 ft., May, 1886 (no. 1544). 



SANTALACEAE 



Qumchemalium tnajus Brongn. Voy. Coquille. pi. 51J. a. Near 



La Paz, 1 0000 ft., Apr., 1885 (no. 676). The same as Mandon's 

 no. 1044. 



EUPHORBIACEAE 



Euphorbia geniculata Orteg. Hort. Matr. Dec. 18. Tacna, 

 Chile, Mar., 1885 (no. 890); Guanai, 2000 ft, May, 1886 (no. 

 892); Falls of Madeira, Brazil, Oct., 1886 (no. 891). Also 

 growing abundantly at Mapiri, in Cinchona plantations, as a weed. 



Euphorbia chamaesyct L. Sp. PI. 455 ? Vic. La Paz, 10000 ft., 



April, 1885 (no. 893). 



Euphorbia hypcricifolia L. Sp. PI. 454? Vic. La Paz, 10000 

 ft., April, 1885 (no. 1375). The same as Mandon's no. 1063 and 

 Bang's no. 2. 



Euphorbia Pcplus L. Sp. PI. 456. Vic. La Paz, 1 0000 ft., April, 

 1885 (nos. 896, 898 and 899), and near Valparaiso, Chile, June, 

 ^85 (no. 897). The same as Mandon's no. 1087. Grows very 

 abundantly in cultivated ground, especially where irrigated, and on 

 shaded, rocky banks. 



