Macaranga. | CXXIL, EUPHORBIACE# (PRAIN). 945 
31. M. Heudelotii, Laill. Adansonia, i. 69. A small to medium 
tree, reaching 40 ft. in height ; branches armed with spines, pubescent. 
Leaves petioled, oblanceolate-oblong, obtuse or minutely mucronate, 
base rather narrow, rounded, margin entire, 3-5 in. long, 4-2 in. wide, 
coriaceous, glabrous or slightly pubescent on the nerves beneath; 
petiole rusty-pubescent, }-} in. long; stipules caducous. Male flowers 
in axillary spikes ; bracts ovate-triangular, acute ; buds minute, obconic. 
Stamens 3-5, exserted. Female flowers in axillary panicles. Calyx 
membranous, 4-5-toothed. Ovary globose, densely lepidote; style 
thick, pilose; apex conic, retrorsely incurved. Capsule pisiform, 
lepidote. Seed globose—Miill. Arg. in DC. Prodr. xv. ii, 1015. 
M. apicifera, Beille in Bull. Soc. Bot. France, lv. Mém. viii. 79, 
Upper Guinea. Senegambia: Cape Verd peninsula, ZLeprieur! Kombo, 
Heudelot, 106! Rio Nunez, Heudelot, 784! Dagana, Perrotlet, 725! 753! 
Leprieuy ! French Guinea: Kindia, Chevalier, 13028 ! 13157! 13208 bis! Kouria, 
Chevalier, 14854! Medinani, on the Upper Niger, Chevalier, 5131 Sierra Leone, 
Scott-Elliot, 4390! 4517! 4743! 4958! 5258! 5275! Ivory Coast: Lower 
Cavally, between Prolo and Blieron, Chevalier, 19885! Southern Nigeria: Lagos; 
Eppah, Barter, 3271 ! near Lagos, Moloney ! 
69. RICINUS, Linn.; Benth. et Hook. f. Gen. PI. iii. 321. 
_ Flowers monecious, apetalous. Male: Calyx membranous, globose 
in bud, splitting into 3-5 valvate lobes. Stamens very numerous, up 
to a thousand, clustered, central; filaments several times divided ; 
anthers 2-celled; cells distinct, subglobose, divaricate, separately 
attached to the connective; dehiscence longitudinal. Rudimentary 
ovary 0. Female: Calyx very caducous, usually spathaceously split. 
Ovary 3-celled ; styles short or somewhat elongated, 2-fid or occasionally 
entire, spreading, somewhat plumose; ovules solitary in each cell. 
Disk 0, Capsule 3-dymous, breaking up into 3 2-valved cocci. Seeds 
ovoid; testa crustaceous; albumen fleshy; cotyledons broad, flat.—A 
tall annual herb or a tree-like shrub, glabrous, often glaucous. Leaves 
alternate, large, peltate, palmately 7- or more-lobed; lobes serrate. 
Racemes more or less paniculate towards the ends of the branches ; 
flowers rather large, the upper males, clustered; the lower females, 
shortly pedicelled. Capsule smooth or echinate. 
A single species, perhaps originally African, now widely cultivated throughout 
the Tropics. 
_ 1. R. communis, Linn. Sp. Pl. ed. i. 1007, Herbaceous or 
shrubby, evergreen ; twigs glaucous. Leaves alternate, long-petioled, 
orbicular-peltate, 6 in. to 2 ft. across, deeply palmately lobed ; lobes 7 
or more, from ovate or oblong to ovate-lanceolate or linear, acute or 
acuminate, margin sharply glandular-toothed, glabrous and glaucous 
on both surfaces, green or reddish: petiole 4-12 in. long; stipules 
arge, ovate, connate in an acute bud-sheathing deciduous calyptra 
3-# in. long, quickly deciduous. Flowers in large pyramidal pseudo- 
terminal erect panicles, males below, females higher up. Male: Calyx 
VOL. VI.—sEcr, 1 3P 
