946 OXXII, EUPHORBIACEE (PRAIN). [ Ricinus. 
6 lin. wide; anthers yellow. Female: Calyx 4-5 lin. wide; styles 
usually brightly coloured. Capsule subglobose, ellipsoid or oblong, 
smooth or prickly, 7-12 lin. long, 7-10 lin. wide. Seed ovoid-flattened, 
7-8 lin. long, 3-5 lin. wide; testa finely mottled; raphe faintly raised ; 
caruncle conspicuous.—Bot. Mag. t. 2209; Miill, Arg. in DC. Prodr. 
xv. ii, 1017; Bentl. & Trimen, Med. Pl. iv. t. 237; Engl. Hoch- 
gebirgsfl. Trop. Afr. 284; Pax in Engl. Pfl. Ost-Afr. C, 240; Durand 
& Schinz, Etudes Fl. Congo, 247; Hiern in Cat. Afr. Pl. Welw. i. 983; 
De Wild. Etudes Fl. Katanga, 80, Miss. E. Laurent 133, and Not. PI. 
Util. Congo, i. 588, 616; Th. & Hél. Durand, Syl]. Fl. Congol. 499; 
De Wild. Comp. de Kasai, Miss. Scient. 331. 
Distributed everywhere throughout Tropical Africa, where it is probably a native. 
It ascends in Abyssinia to 8000 ft. and on Kilimanjaro where, according to Volkens, 
it is undoubtedly wild, to 6000ft. It now occurs as a cultivated plant in many 
races. The leading African forms are as follows :— 
Var. genuina, Miill. Arg. in DC. Prodr. xv. ii. 1019. Fruit subglobose, about 
7 lin. wide, densely beset with prickles 3 lin. long; seed 5 lin. long. —R. communis, 
Linn, Sp. PI. ed. i. 1007, mainly. 
Universally distributed throughout Tropical Africa. 
Var. africana, Miill. Arg. in DC. Prodr. xv. ii. 1019. Fruit subglobose, about 
7 lin. wide, sparingly beset with prickles 14 lin. long; seed 5 lin. long.—R. africanus, 
Willd. Sp. PL. iv.565, mainly ; Terrace. in Ann. Istit. Bot. Roma, v. 99. 
Wile Land. Eritrea: Amfilah, Zerracciano. Abyssinia : Ankober, Roth, 
92! Hawash and Maki Rivers, Weilby! Somaliland: without precise locality, 
Mrs. E. Lort-Phillips!} Sudan: Khartoum, Kotschy, 250! 332! Kordofan: 
Kotschy, 243! 
This form is characteristic of the Mediterranean littoral and the regions 
immediately adjacent. 
Var. megalosperma, Mill. Arg. in DC. Prodr. xv. ii. 1017. Fruit ovoid-globose, 
narrowed to the apex, 10-12 lin. long, 9-10 lin. wide, rather densely beset with 
prickles 3 lin. long; seed 7-8 lin. long.—R. megalospermus, Del. Cent. Pl. Afr. 
Caill, 89. —-R: macrocarpus, Hort. ex Steud, Nomencl. ed. 2, ii. 459. 
yeneral in Southern Tropical Africa from Mossamedes in Lower Guinea, through 
Rhodesia to Mozambique. : 
Var. benguelensis, Miill. Arg. in Journ. Bot. 1864, 337. Fruit ellipsoid, 
rounded at the apex, 8 lin. long, 7 lin. wide, sparingly beset with prickles 1} lin. 
long.—DC. Prodr. xv. ii. 1019. 
Upper Guinea. Northern Nigeria: Nupe; Jeba, Barter ! 
Lower Guinea. Spanish Guinea: Bebai, Zessmann, 463! Benguella ; 
Mossamedes, Welwitsch, 307. 
70. CHATOCARPUS, Thwaites; Benth. et Hook. 
f, Gen. PI. ili. 323. 
- Flowers diecious, apetalous. Male: Sepals 4-8, strongly imbricate. 
Stamens 5-20; filaments connate below ina column, free above ; anthers 
oblong, dorsifixed ; cells 2, parallel, dehiscing longitudinally. eabipuite 2 
tary ovary at the apex of the staminal column, entire or 3-fid. Disk a 
Female : Calyx as in the male. Ovary 3-celled ; ovules in each cell so : 
tary ; styles distinct, erect and somewhat incurved, 2-partite, the eaders 
papillose-fimbriate within. Disk distinct, 4-10-lobed or entire. Capsule 
