776 



CXXIL EUPHOEBIACE^ (HUTCHrNSON). 



[Jatropka, 



the petals ; anthers ovate or oblong, erect, cells parallel and contiguous, 

 <lehiscing longitudinally. Rudimentary ovary absent. Female flowers : 

 Sepals and petals as in the male. Disk annular, often 5-lobed or 

 broken up into glands. Ovary 2-3- (rarely 4-5-) celled; styles con- 

 nate at the bjise, spreading above, often shortly divided into 2 branches ; 

 ovules solitary in each cell. Capsule ovoid or subglobose, dehiscing into 

 2-valved cocci ; endocarp crustaceous or hardened. Seeds ovoid or 

 oblong ; caruncle often much divided ; testa crustaceous ; albumen 

 fleshy ; cotyledons flat, broad. — Herbs or shrubs, rarely arborescent or 

 herbs arising from a thick perennial rhizome. Leaves alternate, 

 crowded or lax, sessile or petiolate, entire or more often variously digi- 

 tately lobed, rarely pinnately divided ; indumentum simple, sometimes 

 glandular; stipules usually much divided into setaceous segments, 

 rarely rigid and spiny. Flowers arranged in terminal dichotomoua 

 ■cymes, the female solitary and terminating each axis, the males 

 lateral. 



Spocirs nbout 160, distributed throughout (lie Tropics and extending into South 

 Afric:» and Nortli America. 



Leaves fasciculate and crowded on short arrested 

 cushion-sliaped bi-anchlets, the latter often in the 

 ijxils of spiny stipules. 

 Stipules much shorter than the leaves. 



Leaves undivided, spatliuktc or spathulute-ob- 

 lanceolato, glabrous. 

 Stipules large and sjjiny ..... 



Stipules minute, not spiny .... 



Leaives trilobed to or below the middle, glabrous. 

 Jieavt'S divided nearly to, and cuneate at the 

 base ........ 



Leaves divided to about the middle, truncate 

 or subcordate at the base .... 



1. J. Rir<r. 



2. J. Robecchii. 



3. J . aspleniifoHa. 



Leaves undivided or undulately trilobed, ovate- 

 orbicular, tomentose below .... 



Stipules nearly twice as long as the leaves 

 Leaves not fasciculate or crowded, arranged more or 

 less regularly on elongated brauchlets ; stipules 

 rarely spiny. 

 Loaves all undivided, penninerved. 



]>eaves linear or lineai'-lanceolate, 3-J-6 in. long 

 Leaves ovate or lanceolate, 4-3 in. long. 



Leaves pubescent on both surfaces ; branches 

 decumbent ...... 



Leaves glabrous ; branches erect or suberect. 



Stipules minute ; leaves subsessile, lanceolate 



Stipules conspicuous, divided into tiliform 



segments ; leaves petiolate, ovate or 



ovate-lanceolate ..... 



Leaves (most of them) variously divided or if sub- 

 entire then digitately nerved. 

 Leaves pinnately divided ..... 



Leaves digitately divided. 



4. J. spinosa, 



vur. somalensis. 



5. J.ferox. 



6. J. crinita. 



7. J. neriifoHa. 



8. J. Seineri. 



9. J. Banmii. 



10. J. prunifolia. 



11. J. erythropoda. 



