79 



Young parts and leaves beneath tawny lepidote-pubescent, C niyrianthus. 



t t Capsule sessile. 

 All parts quite glabrous, C. stenophyUus. 



CROTON. 



X Indiiment of young shoots silvery or coppery scaly. 



Pedicels of female flowers very short and thick, sulcate. 



Leaves chartaceous, densely silvery or coppery soaly beneath, acuminftte, C. argyratus. 



Leaves coriaceous, bluntish to almost retuse, adult almost glabrous, lateral nerves 



faint, C. rohustus. 



O Pedicels terete and often slender. A 



Adult leaves glabrous or nearly so, coarsely repand-seri'ate ; capsule about the size of a cherry- 

 stone, lepidote ; seeds about 3 lin. long, C. ohlongifolius. 



Adult leaves glabrous or nearly so ; capsule the size of a pigeon's egg, scaly-stellate 

 puberulous ; seed | in. long, .C. Joxfra. 



X X Indument of young shoots consisting of sessile and tubercled-stalked stellate hairs. 

 Leaves penninerved, or indistinctly Z-nerved at base. 



Young leaves all over and adult ones beneath shortly pubescent ; capsule the size of a pea, 

 minutely puberulous ; seeds about 2 lin. long , G. Wallichii. 



Leaves 5-or 3-plinerved at base. 



+ Capsule obsoletely 3-lobed or almost terete. Leaves 5-plinerved at base. 

 f Inflorcicence glabrous or nearly so. 



Adult parts glabrous or nearly so, female pedicels thick, silvery-scaly, male pedicels slender 

 and glabrous ; capsules almost oblong, almost glabrous C. Tiglium. 



1 1 Inflorescence more or less stellately pubescent. Leaves often with a 

 stalked gland on the crenatures along the margin. 



Young shoots minutely tubercled-stellate-hispid ; basal glands of leaves stalked ; capsules 

 minutely tubercled-stellate-rough C. caudatum. 



Young shoots softly floccose-stellate ; basal glands of leaves sessile ; capsules densely and 

 softly stellate-tomentose, C. flocculosum. 



SUIBBAVIA. Only species, , , S. macrophylla. 



AGROSTISTACHYS.-Only species A. longifolia. 



AlEURITES. Only species, A. Mollucana. 



SYMPHYLLIA. Only species S. Silhetiana. 



TREWIA. Only species, , T. nudiflora. 



MALLOTUS. 



* Capsules unarmed, but covered with various tomentum from tomentose to glandular. 



Capsules 2-coccous, velvety-tomentose. 



Soandent shrub ; softer parts stellately pubescent, M. repandus. 



Capsules 3-coccous. 



Leaves beneath glaucescent and crimson-resinous ; capsules densely covered with crimson 



resinose powder M. Philippinensis. 



Ovary silky-pubescent, , M. decipiens. 



* Capsules armed with longer or shorter, lax or crowded prickles, the indument 



various. 

 Jidcpmcs or spikes collected in terminal ample rarely contracted panicles. 

 + Leaves peltate, more or less orbicular-ovate. 

 Leaves broadly peltate, usually 3-lobed ; capsules short-peduncled, globular, covered with a 



thick dense stratum of scurvy pubescent soft short bristles, M. barbatus. 



Leaves usually narrow peltate, not lobed ; capsules sessile, densely covered with loose soft 



pubescent bristles nearly as long as the diameter of the capsule itself, M. ricinoides. 



+ + Leaves not or indistinctly peltate, shortly white or rarely tawny tomen- 

 tose benedth, often rhomboid-ovate. Capsule shortly and laxly muri- 

 cate. 



Capsules sessile or nearly so, 4- or 5-coccous, almost globular, scurvy wliitish tomen- 

 tose, , , , M. tetracoccus. 



Capsules S-coocous and 3-lobed, tawny-tomentose, M. paniculatus. 



Racemes or spikes terminal or axillary, simple or at least not jpanickd. 

 Capsule lobed '6-coccous, shortly and laxly muricate, 

 \- Capsules with hairy indument. 



