ADDENDA. 1037 
30a. Euphorbia arabicoides, V. Z. Br. Annual, 6-8 in. high, 
erect, dichotomously branching from the cotyledon-node upwards. 
Branches slender, at the stoutest parts not more than 4 lin. thick, most 
of them with a few spreading hairs all round above each node, otherwise 
glabrous. Leaves opposite, shortly petiolate, 4-11 lin. long, ?~2 lin. 
broad, linear-oblong or linear-lanceolate, acute, unequal at the base, 
glabrous on both sides. Stipules free, subulate. Involucre solitary in 
the forks of the branches and terminal, very shortly pedicellate, 3 lin. 
in diam., obconic and about 1 lin. long including the pedicel, glabrous, 
with 4 glands and 5 minute acute sparingly ciliate lobes; glands 
4-1 lin. in their greater diam., transversely oblong, entire, all 
unappendaged or 2 of them with an obliquely ovate obtuse petal-like 
white appendage, both kinds often on the same branch. Capsule 1} lin. 
in diam., trigonous, thinly sprinkled with rather long spreading hairs ; 
styles } lin. long, free to the base, deeply bifid at the apex. Seeds 
% lin. long, oblong, 4-angled, with 2-3 transverse wrinkles on each face, 
pinkish-white or perhaps pale grey when quite ripe. 
Lower Guinea. South Angola: in open forest between Chibia and Quibita, 
Pearson, 2640! 
Very similar to H. arabica, Hochst. & Steud., but easily recognised by the 
spreading hairs on the stems above each node, narrower and more obconic involucre, 
glands often with appendages and the larger hairy capsule. 
32a. Euphorbia mossamedensis, .V. /#. Br. Annual, erect, 
4-8 in. high, dichotomously branching from the cotyledon-node 
upwards, quite glabrous in all parts. Stem below the cotyledon-node 
less than 1 lin. thick; branches slender. Leaves opposite, shortly 
petiolate, 2-6 lin. long, 1-2} lin. broad, oblong or elliptic-oblong, 
obtuse, minutely apiculate, unequal at the base. Involucres on pedicels 
4-} lin. long, solitary in the forks of the branches and terminal, 3-3 lin. 
in diam., subglobose-campanulate, with 4 usually appendaged glands 
and 5 minute fringed lobes; glands 4-} lin. in their greater diam., 
transversely oblong, all without or 2 or all with a small white petaloid 
appendage. Capsule nearly 1 lin. in diam., somewhat acutely trigonous, 
glabrous, exserted on a curved pedicel ? lin. long, which is dilated at 
its apex into a disk (? perianth); styles free to the base, ¢ lin. long, 
bifid at the apex, rather slender, ascending-spreading. Seeds #% lin. 
long, oblong, slightly pointed at one end, 4-angled, irregularly and 
deeply transversely rugose on the faces, pale brown to whitish. 
Lower Guinea. South Angola: dry ground in open forest near the 
Mossamedes Railway, about kilom. 107-108°5, Pearson, 2865! 2909! 
40. Euphorbia Benthami, Hiern. Add: 
Lower Guinea. Angola: Huilla; Mounyino, Dekindt, 885! 3047! 
43. Euphorbia systyloides, Par. Add: 
Mozamb. Distr. German East Africa: Bagomoyo and Mandera, Sacleuz, 
1078! Pare, Sacleux, 1313! 
