Euphorbia.] cxxii. euphorbiace^ (browk). r)?)9 



were previously borne, J- J in. thick, glabrous, leafy above, naked below. 

 Leaves alternate, whorled under the umbels, 1-3J in. lontr, i-l in. 

 broad, lanceolate to obovate-lanceolate, acute to obtuse, mucronate 

 tapering to the petiole-like base, glabrous on both sides. Stipules none. 

 Umbels terminal, with 5 or fewer slender rays J-1 in. long, each 

 bearing a pair of bracts and 1 involucre. Bracts 2-8J lin. lonj? and as 

 .much in breadth, broadly elliptic or suborbicular, obtuse, mucronate, 

 glabrous. Involucres of the rays subsessile or very shortly peduncu- 

 late, hermaphrodite, with the central one of the umbel male and on a 

 peduncle 1 J lin. long, somewhat funnel- or broadly cup-shaped, l|-2 lin. 

 in diam., glabrous, the male with 5 and the hermaphrodite with 4 

 glands and 5 usually 2-toothed lobes ; glands not contiguous, peltate, 

 |-1 lin. in their greater diam., broadly elliptic or suborbicular, entire. 

 Ovary glabrous, at first subincluded, finally exserted on a recurved 

 pedicel lJ-3 lin. long; styles 1 lin. long, united at the base, then 

 spreading-ascending, bifid at the apex. Capsule about oj lin. in diam. 

 Seeds 1 J-l J lin. long, ellipsoid or subglobose, irregularly tuberciilate and 

 wrinkled. — Pax in Engl. Pfl. Ost-Afr. C. 242. E.usamharica, sub-sp. 

 elliptica, Pax in Engl. Jahrb. xxxiv. 374. £J. memhranacea, Pax, I.e. 

 242, and in Engl. Jahrb. xxiii. 534. 



Mozanxb. Dlstr. German East Africa : Usambara; various localities, ^o/j^ 

 •660! 3318 ! Braun, 2897! Engler, 1072 ! 1161 ! 1439! 



72. E. tuberifera, N:E. Br. Perennial herb 1| ft. or more high, 

 with fibrous roots, some of which end in elongated fleshy tubers. Stem 

 terete, sparingly branched, herbaceous, with internodes H-3 in. long, 

 "striate with greenish -white parallel lines" {G ossweiler), gXaihvou^ or 

 more or less pubescent above. Leaves alternate, spreading, apparently 

 soon falling from the lower part of the branches ; petiole ^| in. long, 

 slender; blade li-2| in. long, |-1J in. broad, somewhat rhomboid- 

 elliptic, obtusely pointed, cuneate at the base, glabrous or with a few 

 minute hairs near the margins on both sides. Cymes small, in terminal 

 pans, J-f in. long (including the slender peduncles), about 2-flowered. 

 Bracts about § lin. long, ovate-lanceolate, acute, ciliate. Involucres on 

 peduncles 1 J-2 lin. long, campanulate, 1-1 J lin. in diam., glabrous or 

 slightly puberulous outside, with 2-3 appendaged glands and 5 very 

 small ovate ciliate lobes, 2-3 of the latter alternating with 2-3 minute 

 filiform processes (imperfect glands); glands erect, J-f lin. in their 

 greater diam., 2-lipped, with the lips subequal ; appendage twice as 

 broad as long, half surrounding the gland, crescent-shaped, with the 

 concave side applied to the gland, or very broadly ovate, obtuse to sub- 

 truncate, apparently green. Ovary exserted and recurved, densely 

 tomentose; styles scarcely J lin. long, very stout, free, erect, entire. 

 Capsule not seen entire, probably about li-2 lin. in diam., pubescent. 

 Seeds 1^ lin. long, ellipsoid, carunculate, covered with numerous small 

 tubercles mingled with minute papillse of a dull mustard-yellow colour 

 on a dark brown ground. 



Iiower Guinea. Angola : on hills, under the shade of trees in the district of 

 Cacuaco, Gossweiler, 15361 



