Jatropha.^ EUPnoRBiACE.i^ (Prain). 419 



Leaves lanceolate or oblong-lanceolate, about tlirice 

 as long as broad, base usually hastately 2-lobu- 

 late ; petioles short ; stipules small, gland-like ( 3 ) capensis. 



Herbs with soft subaerial stems springing from a j)er- 

 sistent roots took : 

 Subaerial herbaceous stems tufted at the apices of 

 their vertical hypogseal stems, themselves rising 

 from a deeply buried dauciform swollen rootstock ; 

 leaves shortly petioled, runcinate-pinnatifid ; 

 stipules entire or 2 -fid, eglandular ; sepals with 

 hyaline denticulate edges connate half-way in a 

 campanulate calyx (4) erythropoda. 



Subaerial herbaceous stems springing directly from 

 thickened more or less horizontal woody rootstocks ; 

 sepals very shortly connate at the base only : 

 Margins of leaves quite eglandular ; leaves sessile ; 

 stipules entire or 2-fid, eglandular : 

 Margins of bracts and sepals entire and eglandular ; 

 leaves sparingly hirsute, very variable in 

 outline, mainly 3-lobed, but often with entire 

 and with 5-7-lobed intermixed (5) natalensis. 



Margins of bracts and sepals closely glandular- 

 denticulate ; leaves glabrous, ovate-lanceo- 

 late to linear-lanceolate much longer than 

 broad, entire or at times 1-2-dentate near 

 base on each side ( 6 ) lagarinthoides. 



Margins of leaves, bracts and sepals closely glandular- 

 denticulate or ciliate or setulose : 

 Marginal glands of leaves, bracts and sepals sessile ; 

 leaves sessile, always entire : 

 Leaves quite glabrotis ; stipules setaceous, entire 



or 2-fid, eglandular, deciduous (7) latifolia. 



4 



Leaves more or less hirsute ; stipules dissected, 



persistent, their lobules gland-tipped ... ( 8 ) hirsuta. 



Marginal glands of leaves, bracts and sepals stipi- 

 tate ; leaves usually distinctly lobulate, rarely 

 entire oi* subentire : i 



Cymes hardly overtopping the leaves ; leaves 

 sessile or very shortly petioled, their apices 

 and the tips of the lobes and lobules acute : 

 petals silky outside : 

 Stems and leaves softly densely hirsute ; leaves 

 distinctly pinnately lobed, their marginal 

 glamls very long-stalked ; male petals 

 slightly united below ... ( 9 ) Woodii. 



Steuis and loaves rather harehly sparsely 

 pilose ; leaves spuriously subpalmately 

 lobed, rarely entire or subentire. their 

 marginal glands short -stalked ; male 

 petals free (10) Zeyherl 



Cymes considerably overtopping the leaves ; 

 leaves distinctly petioled, the tip of loljes 

 and lobules obtuse, denticulate ; petals 

 glabrous outside (H) Schlechteri. 



2 B 2 



