Manihot. | CXXII, EUPHORBIACEE (PRAIN). 843 
hitherto been reported from America or elsewhere. These, while agreeing in all 
essential floral and fruit characters with typical M. utilissima, differ from the type 
and from each other so greatly as regards their foliage that they deserve recognition 
as distinct varieties. Barter has noted on a specimen of typical M. utilissima from 
Nupe, 8. Nigeria (Barter, 1497) that he found the plant growing as if wild; adding, 
however, “no doubt remains of former cultivation.” 
Var. hyptiaphylla, Prain. Leaves long-petioled, membranous, 5—7-lobed almost 
to the base, distinctly broader than long, the largest reaching 10-12 in. in width ; 
lobes obovate-spathulate, obtuse, the central much the smallest, narrowed to the base 
and there confluent in a small web 4-2 in. across, each from 14-7 in. long, }-2} in. 
wide; petiole 23-10 in. long. 
Upper Guinea. Dahomey: Savé, Poisson! Southern Nigeria; Shokan, 
Dudgeon ! Ibadan, Johnson ! 
Var. schistaphylla, Prain. Leaves very shortly petioled, compound, 3-foliolate ; 
leaflets long-petioluled, membranous, entire, ovate, acutely acuminate, rounded or 
shortly cuneate at the base, 4 in. long, 1} in. wide; petiolules 24-4 in. long; 
petiole } in. long. 
Lower Guinea. Gaboon: Fougamou; Ivea, Klaine, 8! 
52. CEPHALOCROTON, Hochst. ; Benth. et Hook. f. 
Gen. PI. iii. 307. 
Flowers moneecious, apetalous. Male: Calyx globose, closed in bud, 
splitting into 3-4 valvate lobes. Stamens 6-8; filaments free, 2-seriate, 
inflexed in bud with anthers erect, dorsifixed, oblong, dehiscing longi- 
tudinally. Rudimentary ovary shortly columnar, entire or lobed. 
Female: Sepals 5-6, long, pinnatifid, unequal. Ovary 3-celled; styles 
shortly connate below, free, spreading and multifid above ; ovules in 
each cell solitary. Hypogynous disk annular, subentire. Capsule 
3-dymous ; cocci 2-valved. Seeds without a strophiole ; albumen fleshy ; 
cotyledons broad, flat.—Shrubs, stellate-pubescent. Leaves alternate, 
distinctly petioled or subsessile, 3-5-nerved at the base, entire or 
toothed ; stipules laciniate, small. Racemes terminal, androgynous ; 
male flowers many, clustered and subcapitate, terminal, female flowers 
few, pedicelled, at the base of the peduncle. 
Species about 8, in Tropical and South Africa. 
Leaves distiuctly petioled. 
Female flowers 5-6 at each peduncle-base ; ‘ . 1. CO. polygynus. 
Female flowers 1-2, rarely 3, to each peduncle. 
Male calyx glabrous; leaves finely and closely toothed 2. C. nudus. 
Male calyx pubescent. 
Leaves entire or subentire, softly pubescent. . 3. C, velutinus. 
Leaves distinctly toothed. 
Leaves crenate, at length almost glabrous, smooth 4. C. cordofanus. 
Leaves dentate, persistently harshly hairy, scabrous 5. C. seabridus. 
Leaves sessile or nearly so, entire. 
Male calyx glabrous; leaves rather harsh, when mature 
nearly glabrous i : : 4 : ‘ . 6. C. Pueschelii. 
Male calyx hairy ; leaves softly pubescent . : . 7. C. mollis. 
1. C. polygynus, Pax d: K. Hoffm. in Engl. Pllanzenr. Euphorb.- 
Adrian, 10, fig. 3, D. ’ Shrub, 5 ft. high; twigs somewhat floccose with 
