446 CXXII. EUPHORBIACE^ (hUTCHINSON A>fD PEAIn). 



Flowers in 2-sexual dicliotoiiious cymes ; 



male petals free or united . . .39. Jatropua. 

 Flowers in 1-sexual racemes of cymules ; 



male petals free 40. Mildbk^dia. 



Flowers in axillary fascicles or the females 



axillary and solitary; male petals free . 41. Cluytia. 

 Male calyx-lobes valvate. 



Flowers paniculate or cymose; rudimentary 

 ovary 0. 

 Male petals free ; panicles terminal. 



Leaves palminerved; fruit indehiscent 



or subindehiscent .... 42. Aleukites. 

 Leaves penninerved. 



Leaves beneath and calyx outside 



silvery lepidote . . . .43. Cyktogonoke. 

 Leaves beneath and calyx outside 



glabrous 44. Gkosseka. 



Male petals united ; panicles axillary; leaves 



l«lminerved 45. MaxmopuytoX. 



Flowers racemose or spicate. 



Male petals usually united ; racemes axil- 

 lary ; calyx lepidote; rudimentary ovary 46. Ckotonogynjj. 

 Male petals free ; calyx not lepidote. 



Racemes or spikes terminal ; rudimen- 

 tary ovary 47. HoLSTiA. 



Racemes or spikes lateral. 



Dioecious trees ; filaments ahuost or 

 iiuite free ; anther-cells almost free, 

 pendulous from a glandular connec- 

 tive ; styles 2-tid . . . .48. A^GEOSTISTACHYS. 

 Moncecious herbs ; filaments coimate 

 into a column. 

 Rudimentary ovary present ; styles 



lacerate . ... 49. Caperonia. 



Rudimentary ovaryO ; styles 2-fid 50. Cheozopuoka. 

 Petals in male flowers 0. 



-Male calyx in bud enveloping the stamens. 

 jStylcs free or if connate into a slender column 

 continuous with columella. 

 Racemes or spikes terminal, simple. 



Flowers large ; leaves (in our species) digi- 



tately lobed ; calyx-lobes imbricate . 51. Mamhot. 

 Flowers very small ; leaves not lobed ; 

 calyx-lobes valvate . . . .52. Cephaloceotok. 

 Racemes or spikes or glomerules axillary or 

 lateral. 

 tMale calyx-lobes val^vato qr subvalvate. 

 P^ilamcnts unbranched, usually free. 

 Anther-rells free except at jjoint of 

 attachment to filament, globose 

 or ovoid ; leaves not lobed. 

 Anther-cells spssile, erect. 



Anthers 4-celled ; male calyx not 



closed in bud, lobes subvalvate 53. Ha?skarlia. 

 Anthers 2-celled; male calyx 

 closed in bud, lobes valvate. 



