1002 CXXII. EUPHORBIACEE (PRAIN). [ Maprownea. 
79. MAPROUNEA, Aubl.; Benth. et Hook. f. Gen. Pl. iii. 333. 
Flowers usually monecious, occasionally dicecious, apetalous. Disk 
0. Male: Calyx small, membranous, urceolate, shortly 2—3-lobed, lobes 
imbricate. Stamens 1-3, usually 2, exserted; filaments united in a 
slender column below, free above; anthers oblong, their cells parallel, 
opening longitudinally. Rudimentary ovary 0. Female: Calyx short, 
3-lobed. Ovary 3-celled; ovules in each cell solitary; styles connate 
in a short column below, free and entire above. Capsule subglobose or 
slightly 3-gonous, breaking up into three 2-valved cocci. Seeds obovoid 
with a large fleshy caruncle; testa crustaceous, foveolate or rugulose or 
smooth; albumen fleshy; cotyledons broad, flat.—Trees or shrubs, 
everywhere glabrous. Leaves alternate, entire, petioled, usually 
reticulate ; stipules small. Flowers in usually 2-sexual (rarely 1-sexual) 
spikes; males densely ovoid or subglobose, terminal on special much 
contracted branchlets ; bracts small, imbricate, glandular at the base on 
each side, each subtending 3, very rarely 5, sessile Howers; females 1-3 
below the male spike, pedicelled, solitary to their bract or in one species 
usually few in a- distinct raceme without an accompanying male 
Spike. 
Species about 5, three in Tropical Africa, two American. 
Seeds rugulose, hardly as large as their caruncle, small, 
4 in. or less in diam.; inflorescence usually 1-sexual 
und plants sometimes diecious; male spikes sub- 
globose, red, under 3 in. long ; a tree up to 50 ft. high 1. IL. membranacea. 
Seeds smooth, larger than their caruncle, inflorescence 
usually androgynous and plants always monecious. 
Seeds small, 1 in. or less in diam., twice as large as 
their caruncle; male spikes subglobose, greenish- 
yellow, under fin. long; ashrub 5-7ft.high . 2. MW. gracilis. 
Seeds relatively larger, }—-} in. in diam., three to 
four times as large as their caruncle; male spikes 
ovoid or elliptic, pale-yellow, over 4 in. long; a 
tree up to 30 ft. high : d : ‘ - 3. lL. africana. 
1. M. membranacea, Pax ¢ K. Hoffm. in Engl. Pjlanzenrs 
Euphorb.-Hippoman. 178. A tree up to 50 ft. high, all parts glabrous; 
ultimate twigs passing into the inflorescence 1-1} in. long. Leuves 
short-petioled, thinly membranous, with age becoming firmly papery, 
lanceolate or oblong-lanceolate, bluntly acuminate, base cuneate oF 
somewhat rounded, margin entire, 14-3 in. long, 3-1} in. wide, — 
nerved and reticulate; petiole slender, } in. long; stipules sma, 
triangular. Inflorescence usually 1-sexual, dicecious or monecious, 
occasionally androgynous. Male spikes globose or subglobose, 5 1. 
long, dense-flowered, with usually only a few empty basal female ae 
male bracts 2-glandular at the base, wide-triangular, acute, eac 
3-5-flowered ; bracts and flowers red. Female racemes few-flowered, 
occasionally, even when 1-sexual, accompanied by a men ee 
abortive male spike; pedicels in fruit up to ? in. long. Male oh 
thinly membranous, 2-3-lobed, very small, Stamens 2, exserted, 
