932 XXII, EUPHORBIACEE (PRAIN). [ Discoglypremna. 
minute ; males clustered, females solitary along the rhachis; pedicels 
in both sexes articulate; bracts minute. 
Species 1, endemic. 
1. D. caloneura, Prain in Kew Bulletin, 1911, 317. Tree, 50-70 ft. 
high ; twigs glabrous. Leaves petioled, firm, oblong or rounded-oblong, 
usually shortly caudate-acuminate, base cuneate or almost rounded, 
entire or faintly toothed, 3-4 in. long, 2-2} in. wide, glabrous or with 
a few hairs on the main nerves beneath, 3-nerved from the base ; 
petiole 13-2 in. long. Panicles 6-8 in. long, 3-4 in. wide. Male: 
Calyx valvately 5-partite, less often 3-4-partite, in bud globose, } lin. 
wide. Stamens 7-8; filaments far exserted, slender, glabrous; re- 
ceptacular glands all inter-staminal, very variable in thickness, hirsute 
at the apex, about twice as many as the filaments; anthers dorsifixed 
near the apex ; connective conical ; cells distinct, each unequally 2-locel- 
late, with the smaller locellus on the inner side. Female: Calyx val- 
vately 5-sect; lobes reflexed. Ovary 3-celled, hirsute; styles free, 
undivided, fimbriate on the inner face, recurved-spreading ; ovules in 
each cell solitary. Disk of 6-8 large ovate obtuse thick scales, hirsute at 
the margin and on upper side. Capsule 3-coccous, sparingly hairy ; cocci 
2-valved. Seeds ovoid, completely enveloped in a thick pulpy aril; 
testa very hard and thick, black, somewhat polished, foveolate ; tegmen 
grey, distinct ; albumen fleshy; cotyledons suborbicular, slightly cor- 
date at the base.—Alchornea caloneura, Pax in Engl. Jahrb. xliii. 81. 
Upper Guinea. Ivory Coast: Potou Lagoon; Anyama, Chevalier, 20019! 
Gold Coast: Ancobra River, Johnson, 919! Esubompang, Chipp, 100! Southern 
Nigeria: 70 miles east of Lagos, Lamborn, 123! Cameroons: Bipinde, Zenker, 
2113! 2643! 3322! 
Lower Guinea. Spanish Guinea: Nkolentangan, Tessmann, 97! Bebao, 
Tessmann, 702! 
68. MACARANGA, Thouars; Benth. et Hook. f. Gen. 
Pl. iii. 320. 
Flowers dicecious, rarely monecious, apetalous. Male: Calyx 
globose, closed in bud, splitting into 3-4 valvate lobes. Stamens some- 
times few (1-3), often numerous (10-30); filaments short, free, very 
rarely united or as if branched ; anthers short, terminal, usually 4-celled, 
4-valved, sometimes 3-celled, 3-valved, rarely 2-celled. Rudimentary 
ovary 0. Female: Calyx truncate or shortly toothed, ultimately wide- 
cupular or obliquely spathaceous. Ovary 2-3- (rarely 4-6-) celled ; 
styles short, stout, entire, free or slightly united at the base; rarely 
long, slender or united in a globose mass; ovules in each cell solitary. 
Disk 0. Capsule breaking up into 2-valved cocci or occasionally, when 
1-chambered, almost indehiscent. Seeds globose; testa crustaceous ; 
albumen fleshy; cotyledons broad, flat.—Trees or shrubs. Leaves 
alternate, petioled, simple or lobed, base often palminerved and some- 
times peltate, sometimes penninerved. Spikes or racemes axillary 
lateral or sometimes forming a terminal panicle; male flowers small, 
