636 CXXII. EUPHORBIACEE (HUTCHINSON). [ Vapaca. 
older leaves diverging almost at right angles from the midrib, indis- 
tinctly looped almost at the margin, undivided, prominent on the lower 
surface ; tertiary nerves numerous, parallel; stipules filiform, about 
4 in. long, densely pilose. Male heads crowded towards the ends of 
the branchlets ; peduncle 4 in. long, deeply grooved. Bracts of the 
involucre oblong-elliptic, obtuse, about 4 lin. long and 2 lin. broad, 
slightly pubescent outside. Calyx irregularly lobed; lobes sparingly 
pilose at the apex. Filaments glabrous. Rudimentary ovary broadly 
obconic, densely pilose towards the top. Young female flowers not 
seen. Fruits 4-celled, subglobose, slightly over 1 in. in diam., covered 
with numerous lenticels, glabrous. Pyrenes 2-grooved on the back.— 
U. benguelensis, Mill. Arg. in Journ. Bot. 1864, 832, as to the speci- 
men with sessile leaves; Hiern in Cat. Afr. Pl. Welw. i. 963, partly. 
Lower Guinea. Angola: near the River Kutoto, Gossweiler, 3206! near 
Kaconda, Gossweiler, 3364! Gimbundo, Gossweiler, 3802! Kului, Gossweiler, 980! 
2937! Huilla; between Lopollo and the River Monino, Welwitsch, 453, partly! 
(3 specimen) ; near Lopollo, Welwitsch, 455! (Herb. Kew. not Herb. Mus. Brit.). 
3. U. samsibarica, Pax in Engl. Jahrb. xxxiv. 370. A tree 
about 30 ft. high; branchlets pubescent or glabrous, stout, about 3 lin. 
in diam. Leaves obovate to oblanceolate, rounded at the apex, some- 
what obtuse and usually unequal-sided at the base, 8-54 in. long, 
13-24 in. broad, rather thinly coriaceous, slightly rough on the upper 
surface, glabrous on both or very sparingly setulose-pilose below ; lateral 
nerves 9-13 on each side, nearly straight and very faintly looped 
or almost continued to the margin, impressed above, very prominent 
below; tertiary nerves very slender, subparallel, not evident above ; 
petiole rather stout, 3-1} in. long, glabrous or sparingly pubescent. 
Male flowers: Peduncle stout, up to 10 lin. long, glabrous or pubescent. 
Bracts of the involucre 8-10, outer ones oblong, strongly keeled on the 
back, up to 5 lin. long and 2 lin. broad, slightly pubescent towards the 
base on the outside, inner bracts elliptic, glabrescent. Calyx-lobes 
pilose outside. Filaments stout, flattened, glabrous, nearly 1 lin. long. 
Rudimentary ovary obconic, pilose. Female flowers: Bracts of the 
involucre ovate-elliptic, less numerous than in the male, glabrous. 
Calyx pilose. Ovary subglobose, glabrous, verrucose ; styles ae 
Fruits ellipsoid, 3 in. long, $ in. in diam. Seeds solitary in each cell, 
5 lin. long; testa somewhat shining and slightly wrinkled when dry. 
—S8. Moore in Journ. Linn. Soc. xl. 193. 
Mozamb. Distr. German East Africa: Duar-es-Salaam, Stuhlmann, 32! 
Holtz, 32! 690! Busse, 3148! Portuguese East Africa: Quilimane, Stuhluann, 
577! Nyasaland: Shire Highlands, at Mtoto, Buchanan, 430! and without shape 
locality, Buchanan, 221! Massewe, Goetze, 1825! Rhodesia: Melsetter district ; 
Open woods, Chiriuda, Swynnerton, 155! 6513! ‘ 
Var. cuneata, Pax, 1l.c. Leaves narrowly oblanceolate-spathulate, up to 2} in. 
long and 13 in. broad. 
Mozamb. Distr. German East Africa: Kimoani, Stuhlmann, 3386! 
e . 5 ij t 
4. U. kirkiana, Mill. Arg. in Flora, 1864, 517. A pte 
umbrella-shaped tree; branchlets stout, glabrous except when ver 
