948 cxxii. EUPHORBiACEiE (pratn). [Gelouium. 



edge, sometimes distinctly lobed, sometimes with marginal very small 

 staminodes. Ovary usually :^-celled, sometimes 2-celled ; ovules solitary 

 in each cell ; styles short, flat, spreading, suborbicular, entire, emarginate, 

 2-lobed or lacerate. Fruit subglobose, faintly 8-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 distinctly wide- 

 reticulate, sparin^rly vesicular-i)UJictate ; monoecious . 1. O. zanziharense. 

 Sepals \iot glandular on the Lack ; leaves distinctly 



closely reticulate and vesicular-punctate; dioecious . 2. O. procenim. 



1. G. zanzibarense. Mull. Arrj. in DC. Prodr. xv. ii. 1130. 

 Shrub, G ft. hi<;h, monrecions ; everywhere glabrous. Leaves short- 

 petioled, subcoriaceous, obovate-oblong, shortly cuspidate, base cuneate, 

 margin entire, 2-4 in. long, J-2 in. wide, shining above ; nerves 

 4-G pairs looping very distinctly some distance from the margin, 

 sparingly vesicular-punctate" within the wide reticulations; petiole 

 2-?} lin. long. Flowers numerous, in subsessile fasciculate cymes 

 opposite the petioles. Ikids globose. Sepals in both sexes ;">, subequal, 

 each with a distinct gland on the back above the middle. ]\lale : 

 Stamens f)-12. Female: Ovary ^J-celled, glabrous ; styles broad, flat,. 

 suborbicular, subentire, spreading, and closely applied to the carpels. 

 Fruit globose, 1 in. across, at length separating into 2-valved cocci ; 

 endocarp thinly crustaceous. Seeds ovoid ; testa crustaceous, widely 

 foveolate-reticulate ; aril pulpy. — Suregada Zanzibar lensis^ Baill. 

 Adansonia, i. 254. 



Nile Ziand. British E.ist Africa: Mombasa, Wakefield! Kilimanjaro 

 Expedition, 40-00 miks inland, Johnston! 



IVIozaml). Dlstr. Zanzibar, Boivin ! Kirk, 63! IlildehraiuU, 1119! 

 (Jermau East Africa: Usainbara; near Jiote on the Uniba Kiver, Kcissuer, ^^\ 

 Derema, Scheffter, 157! Amboni, Jlolst, 2715 ! 



Also in Madagascar. 



2. G. procerum, Prain in Keio Bulletin, 1011, 233. Tree; twigs 

 slightly anjT^ular, glabrous ; bark fissured ; " wood coarse but clean and 

 white" (Elliot). Leaves short-petioled, subcoriaceous, ovate, subacute 

 or obtuse, base cuneate, margin entire, l|-4^ in. long, |-2J in. 

 wide, glabrous on both surfaces, shining above ; nerves 4-() pairs, 

 with a very close distinct reticulation, each mesh enclosing a vesicular 

 swelling distinct on both surfaces but especially beneath ; petiole 

 2-2J lin. long. Flowers diwcious, in subsessile fasciculate few-flowered 

 cymes opposite the petioles. Buds globose. Male : Sepals 5-H, 

 glandular, usually unequal, the third and fourth always exceeding 



