Croton.] 



CXXII. EUPHORBIACE.E (hUTCHINSON). 



'47 



and fleshy. Stamens 5-x , inserted on a usually pilose receptacle ; 

 lilaments free, inflexed in bud, at length erect ; anthers pendulous on 

 the inflexed filaments in bud, at length erect ; cells parallel, dehiscing 

 longitudinally. Rudimentary ovary absent. Female flowers: Sepals 

 often narrower than in the male. Petals when present often smaller 

 than in the males, rudimentary or entirely absent, rarely represented 

 by tufts of hairs. Disk annular or divided into glands. Ovary usually 

 ^-celled ; styles usually recurved, 1-3 times bifid or partite, rarely 

 multifid or partite ; ovules solitary in each cell. Capsule breaking up 

 into 2-valved cocci, rarely subindehiscent. Seeds smooth, provided with 

 a small strophiole ; testa crustaceous or woody ; albumen plentiful, 

 fleshy ; embryo straight ; cotyledons broad and flat. — Trees, shrubs, or 

 rarely herbs, of diverse habit, usually clothed with stellate hairs or 

 orbicular scales. Leaves alternate or rarely opposite or subverticillate, 

 entire, toothed, rarely lobed, penninerved or 3-a; -nerved from the 

 base, provided at the base with 2 usually stalked glands, the latter 

 very rarely absent. Flowers spicate or racemose, when moncecious 

 the males in the upper part of the inflorescence, the females in the 

 lower, or sometimes both sexes mixed. Bracts small. 



Species over 600, distributed tlirougliout the tropics, with comparatively few in 

 tsubtropical regions. 



Leaves digitately 3-5-lobed to near the base 

 Leaves not or rarely slightly lobed. 

 ♦Leaves entire. 



Leaves clustered on much-abbreviated branchlets, 



glabrous and not scaly on either surface 

 Leaves laxly arranged on more or less elongated 

 branchlets, pubescent with stellate hairs or 

 scaly on both surfaces or only below, rarely 

 nearly glabrous, 

 f Petals absent from or very rudimentary in the 

 female flowers. 

 Kacemes about 4 in. long ; sepals of the 



female flowers acuminate 

 Kacemes shorter; sepals of the female not 

 acuminate. 

 Ovary scaly, without stellate hairs. 



Leaves glabrous above when mature, 



with a few scattered hairs only 



towards the margin when young 



Leaves permanently stellate-pubescent 



above ...... 



Ovary villous, tomentose or i)ubescent with 

 stellate hairs. 

 Leaves rounded at the b;ise, or if cordate 

 then pinnately nerved ; ovary i)ubes- 

 cent or tomentose. 

 Leaves thinly chavtaceous or sub- 

 coriaceous, tomentose or tomen- 

 tellous below; racemes not slen- 

 der, rather dense-flowered. 

 Leaves ^-If in. long, always 



1. C. lohatiis. 



2. C. Scareiesii. 



3. C. jyolyfrichtis. 



4. C. dichogamtis. 



5. C. Menyhartii. 



