518 CXXII. EUPHORBIACEZ (BROWN). | Euphorbia. 
39. E. crotonoides, Boiss. in DC. Prodr. xv. ii. 98. An erect 
annual, 1-2 ft. or more high. Stem terete below, angular above, 2—3 lin. 
thick, branching, glabrous or slightly puberulous ; branches with narrow 
wing-like angles. Leaves alternate on the stem and branches, opposite 
only at the forkings of the flowering branches; petiole 14~9 lin. long, 
4-1 lin. broad, flat and thin, decurrent as angles on the stem and branches; 
blade 3-34 in. long, 1-1 in. broad, lanceolate or on the flowering branches 
sometimes linear, acute, cuneately tapering from below the middle into 
the petiole, irregularly serrate with smaller and larger teeth and with 
a very prominent wing-like midrib beneath, thinly pubescent with 
fine spreading hairs on both sides or nearly glabrous above. Stipules 
reduced to glands. Flowering-branches forked or raceme-like, 1-8 
in. long, ascending or spreading. Involucre sessile or very shortly 
pedunculate, solitary in the forks or at the nodes and apex of the branches, 
1-1} lin. in diam., cup-shaped, somewhat woolly-pubescent outside and 
within, with 4 glands and 5 oblong or ovate-oblong lobes, more or less 
toothed at the apex; glands distinctly stalked, erect, transverse, about 
3 lin. in their greater diam., concave, entire, red or purple. Capsule 
shortly exserted, erect, about } in. in diam. at the base, slightly 
narrowing to the apex and about as long as broad, covered with long 
soft spreading hairs ; styles 1-14 lin. long, united for the greater part 
of their length, with recurved entire stigmas. Seeds 2 lin. long, ovoid, 
acutely 4-angled, acute at one end, tuberculate and with 2 more or less 
evident encircling transverse furrows, greyish-brown.—N. E. Br. in 
Kew Bulletin, 1909, 138. 
Nile Land. Kordofan: near Obeid, Kotschy, 419! Darfur, Pfund, 484! 
ae Lower Guinea. (German South-west Africa: various localities, Dinter, 633! 
383A ! 
Mozamb. Distr. (erman East Africa: Karagwe, Stuhlmann, 1850! British 
Central Africa: Ngamiland; Kwebe Hills, 3300 ft., Lugard, 160! Mrs. Lugard, 
183! Rhodesia; near Buluwayo, Flanagan, 3186 ! 
Easily recognised by its flat petioles and winged midribs and branches. 
_ 40. E. Benthami, [Hiern in Cat. Afr. Pl. Welw. i. 943. Perennial, 
similar to broad-leaved forms of H. systyloides in habit and appearance ; 
stems probably annually produced, 2-3 ft. high, herbaceous, somewhat 
woody at the base, simple or sparingly branched below, usually divided 
at the top into a forked or 3-rayed cyme, but sometimes undivided an 
flowering at the upper nodes and as well as the cyme-branches more oF 
less angular, thinly puberulous at the nodes. Leaves alternate on the 
stem, 3 in a whorl at the base of the cyme and opposite on the cyme- 
branches ; petiole 4—3 in, long, rather slender; blade 1-3 in. long, ¢-1 
in. broad, narrowly lanceolate to oblong-lanceolate, acute and mucronate 
at the apex, acute to rounded at the base, with small teeth tipped with 
a short subulate gland, thinly pilose on both sides with long and very 
fine hairs. Stipules none or reduced to minute glands. Cyme-branches 
14-6 in. long, simple, with 2-3 distant flowering nodes, or for o 
Involucre sessile, solitary, or 2 together at the nodes or forkings of t r 
cyme-branches and terminal, 14-1} lin. in diam., cup-shaped, with 
