516 CXXII. EUPHORBIACEE (BROWN). | Kuphorbia. 
spurs in the forks, perhaps slightly 4-angled, glabrous, brown. Leaves 
opposite at the forkings of the stem and about 4 in a tuft at the 
thickened apex of the branchlets and of the very short thick flowering 
spurs in the forkings, spreading, subsessile or very shortly petiolate, 
4-3 in. long, 4-3 lin. broad, linear, acute, with a recurved or hooked 
point, glabrous on both sides. Involucres 1-3 together amid the leaf- 
tufts, on peduncles about } lin. long, immature, about 1 lin. in diam., 
cup-shaped, glabrous, with 5 glands and 5 small fringed lobes; glands 
scarcely } lin. in their greater diam., transversely oblong, entire. Ovary 
and fruit not seen, 
Mozamb. Distr. German East Africa: Mombo, Braun, 1680! 
The specimens from whieh I describe may be only flowering branches of the 
plant, but they are quite unlike those of any other species I have seen. 
36. E. macra, Hiern in Cat. Afr. Pl. Welw. i. 941. Perennial, 
very variable in appearance. Rootstock woody or perhaps a tuber with 
a long woody neck. Stems few or many, 2-11 in. high, erect, $-} lin. 
thick at the base, 2-3-times forked, in the taller specimens with long 
slender internodes, glabrous. Leaves all opposite, with the pairs in 
dwarf specimens 3-1 in. and in tall specimens 1}-3 in. apart, sessile, 
3-1 in. long, }-14 lin. broad, usually linear, sometimes linear-lanceolate 
or lanceolate, acute, in dried specimens often with inrolled margins, 
entire, glabrous on both sides. Stipules none. Involucre solitary 1 
the forks of the stem or terminal, subsessile, about 14 lin. in diam., 
cup-shaped, with 4 glands and 5 subquadrate lobes minutely toothed at 
the truncate apex, glabrous outside; glands about 3? lin. in their greater 
diam., transverse, narrowly oblong, somewhat 2-lipped or the inner 
margin inflexed, entire or indistinctly crenulate on the outer margin. 
Capsule about 2 lin. in diam. and rather more in length, glabrous; 
styles ?-1 lin. long, erect in a cluster, united below, minutely bifid at 
the apex. Seeds 1} lin. long, oblong, 4-angled, with irregular flattened 
tuberculate sculpturing and raised flattened margins to the two sner 
sides, pale greyish-white.—Z. tenella, Pax in Bull. Herb. Boiss. v1. 738, 
and Bolet. Soc. Brot. xvii. 75, not of H. B. & K. Z. nenensis, Hiern 
in Cat. Afr. Pl. Welw. i. 942. : 
Lower Guinea. Angola: Huilla; dry pastures and poor soil, between Lopollo 
and Nene, Welwitsch, 284! near Lopollo, 2848! near Nene, Welwitsch, 280! 
Gambos, Dekindt, 828, 830, 842. Lunda: between Kimbundu and the River 
Quango, Pogge, 117! 
Welwitsch 2848 and Pogge 117 probably represent the fully developed condition 
Pg plant, with stems 6-11 in. high ; the other specimens seen are only 2-4} in. 
nigh, 
37. E, claytonioides, Pax in Engl. Jahrb. xxiii. 533. Perennial 
or annual. Rootstock woody, 14-3 lin. thick, resembling aD annua 
tap-root. Stems 3-12 in. high, repeatedly dichotomously branched 
from the base, glabrous, glaucous. Leaves opposite, those at the very 
base shortly petiolate, 3-3 in. long, 34-4} lin. broad, elliptic or elliptic: 
oblong, very obtuse or rounded at both ends, all others (as well * 
