948 CXXII. EUPHORBIACEZ (PRAIN), [Gelonium. 
edge, sometimes distinctly lobed, sometimes with marginal very small 
staminodes. Ovary usually 3-celled, sometimes 2-celled ; ovules solitary 
in each cell ; styles short, flat, spreading, suborbicular, entire, emarginate, 
2-lobed or lacerate. Fruit subglobose, faintly 3-keeled ; endocarp thinly 
crustaceous or firmly coriaceous, indehiscent or finally breaking up into 
2-valved cocci. Seeds ovoid, with a crustaceous foveolate reticulate 
testa, usually arillate; albumen fleshy ; cotyledons broad, flat.—Trees 
or shrubs. Leaves alternate, shortly petioled, usually entire; stipules 
connate, deciduous, leaving an annular scar. Flowers small, in glomerate 
leaf-opposed sessile or shortly peduncled cymules, 
Species about 20; two in Tropical Africa, the others South African, Mascarene 
and South-east Asiatic. 
Sepals glandular on the back; leaves distinetly wide- 
reticulate, sparingly vesicular-punctate; monecious . 1. G. zanzibarense. 
Sepals not glandular on the back; leaves distinctly 
closely reticulate and vesicular-punctate; dicecious . 2. G. procerum. 
1. G. zanzibarense, Mill. Arg. in DC. Prodr, xv. ii. 1130. 
Shrub, 6 ft. high, monecious; everywhere glabrous. Leaves short- 
petioled, subcoriaceous, obovate-oblong, shortly cuspidate, base cuneate, 
margin entire, 2-4 in. long, 3-2 in. wide, shining above; nerves 
4-6 pairs looping very distinctly some distance from the margin, 
sparingly vesicular-punctate: within the wide reticulations; petiole 
2-3 lin. long. Flowers numerous, in subsessile fasciculate cymes 
opposite the petioles. Buds globose. Sepals in both sexes 5, subequal, 
each with a distinct gland on the back above the middle. Male: 
Stamens 6-12. Female: Ovary 3-celled, glabrous ; styles broad, flat, 
suborbicular, subentire, spreading, and closely applied to the carpels. 
Fruit globose, } in. across, at length separating into 2-valved cocel 5 
endocarp thinly crustaceous. Seeds ovoid; testa crustaceous, widely 
foveolate-reticulate; aril pulpy. — Suregada xanzibariensis, Baill. 
Adansonia, i. 254. 
Nile Land. British East Africa: Mombasa, Wakefield! Kilimanjaro 
Expedition, 40-60 miles inland, Johnston ! ‘ 
Mozamb, Distr. Zanzibar, Boivin! Kirk, 63! Hildebrandt, 11191 
German East Africa: Usambara; near Bote on the Umba River, Kassner, 98! 
Derema, Scheffler, 157! Amboni, Holst, 2715! 
Also in Madagascar. 
2. G. procerum, Prain in Kew Bulletin, 1911, 2383. Tree; twigs 
slightly angular, glabrous; bark fissured ; ‘‘ wood coarse but clean and 
white” (£lliot). Leaves short-petioled, subcoriaceous, ovate, subacute 
or obtuse, base cuneate, margin entire, 14-44 in. long, #-2} in. 
wide, glabrous on both surfaces, shining above; nerves 4-6 pairs, 
with a very close distinct reticulation, each mesh enclosing a vesiculat 
swelling distinct on both surfaces but especially beneath ; petiole 
2-24 lin. long. Flowers dicecious, in subsessile fasciculate few-flowered 
cymes opposite the petioles. Buds _ globose. Male: Sepals 5-6, 
glandular, usually unequal, the third and fourth always exceeding 
