948 cxv. EUPHORBiACE^. [Euphorbia 



16. E. subsalsa Hiern, sp. n. 



A fleshy, very prickly, leafless, very copiously milky shrub, 

 attaining 2 to 4 ft. in height, beginning to flower when only 7 or 

 8 in, high, slightly puberulous, subglaucous, pale green, with 

 the habit of a Cereus ; branches tetragonal, quadricostate, sub- 

 virgate, furrowed between the angles ; ribs undulate, pulvinate ; 

 prickles about 4 together, distinct, straight, unequal, patent, 

 subdivergent, acute, rather slender, ^ to ^ in. long ; branchlets 

 brachiate, somewhat constricted at the base, distant, ascending, 

 li^ to 3 in. long, about \ in. broad, frequently marked with 

 circular shallow scars (of fallen flower-heads) on the angles above 

 the raised bases of the collections of prickles ; cymes subterminal 

 or lateral, small, sessile, solitary or in pairs, bracteate at the 

 base ; bracts broadly oval, the inner pair y^^ in. long, the outer 

 bracts very short ; flowers yello^vish, sessile ; involucre nearly 

 i in. long, campanulate, truncate at the apex ; lobes 5, short, 

 about yj in. broad, shortly bifid, membranous, subtruncate and 

 fringed at the apex ; glands transversely oblong, short, equalling 

 or slightly exceeding the involucral lobes and thicker, -^ in. 

 broad, entire ; bracteoles between the filaments fringed at the 

 obtuse apex, nearly as long as the involucre, obovate ; capsule 

 very shortly stipitate, i in. long, shortly exserted, glabrous ; 

 styles 3, united up to a third of their length, entire at the apex. 



M( )SSAMEDES. —Seen only at Pedra de Sal, between Mossamedes and 

 Bumbo, not far from a salt spring (Mame), near the river Maiombo ; 

 a few specimens, fl. Oct. 1859. No. 642. 



Related to E. triaculeata. Forsk. and to E. tetraccmtha Rendle in 

 Journ. Bot. 1896, p. 130. The local name is " Hahi." 



17. E. subfalcata Hiern, sp, n. 



A subglabrous, glaucescent, perennial herb, 2 to 4 in. high ; 

 root very large, more or less napiform or fusiform, milky, with 

 white flesh ; stem ascending, subcylindrical, i to i in. thick, 

 branched towards the top ; persistent bases of the fallen stem- 

 leaves ovoid or ovate, scattered, scarcely prominent; branches 

 short, leafy, spreading or recurving ; their leaves narrowly 

 lanceolate-linear, prolonged, acute, sub-falcate, ranging up to 

 2 in. long or rather more, rather fleshy, sessile, entu-e, crowded ; 

 the floral leaves opposite, exceeding the inflorescence, induplicate 

 about the base ; stipules ; flower-heads sohtary, on short rather 

 thick fleshy stalks ; flowers white-greenish ; involucre broadly 

 turbinate, its tube somewhat hairy inside, yV to — in. long ; lobes 

 roundish, somewhat haixy, cihate-fringed, ^\j- to yg- in. broad; 

 glands 4, unequally bilabiate; the inner lip very short, broad, 

 minutely crenulate, hairy inside ; the outer lip about J in. long, 

 from a broad base multisect, the segments once or twice or thrice 

 cleft, the ultimate lobes spi-eading ; bracteoles among the unequal 

 fewer nearly glabrovis filaments narrow, thickened at the apex, 

 hairy ; anthers glabrous ; capsule tricoccous, shortly exserted, 

 stipitate, | to i in. long, ~ in. broad, tough, sub-crustaceous, 

 emarginate at the apex, glabrous or nearly so ; stipe puberulous ; 



