472 



CXXII. EUPHORBIACE^ (BROWN). 



[Enp/torhia, 



llevb l^^-4 in. hicfh ; rootstock tuberous; leaves 



ami bracts linear or linear-lanceolate, acnto . 49. E. trichadenio. 

 Herb 1-2 ft. bigb, witli annual leafy Howering 

 slioots from a thick succulent tuberculate 

 leafless stem ; bracts ovate, acuminate . . 54. E. Mouteiri. 



Herbs or shrubs 3-10 ft. high ; flowering branches 

 herbaceous or not distinctly woody; leaves 

 alternate (see also 58, E. Inmhaensis). 

 Bracts under the involucres -4-3i in. long", 

 with awn-liko points ^—1 in. long. 

 Leaves }-l in. broad, sessile . . . .j5. E. Granfii. 



Leaves 1^-3^ in. broad, tapering into a 



petiole \-l in. intiu-. .... 56. E. pseudogranfi 



Hracts under the iuNohures l-j in. long, with 



awn-like points J^ in. or less long . . 57. E. Cervicornv. 



Shrubs or small trees with woody -looking (or pro- 

 bably fleshy, when alive) flowering branches, 

 leafless or with terminal rosettes or clusters 

 of leaves at the time of flowering, naked 

 bi'low. 

 Flowering branches 4 4.^. liii. thick ; bracts 

 under the involucre -^-1 in. long, acute or 

 shortly subulate -pointetl .... 92. E. noxia. 

 Flowering branches 1-3 lin. thick; bracts 

 under the involucres scale-like or very 

 deciduous, ^^ in. long, obtuse, apiculate. 

 Involucre (including glands) G-8 lin. in 

 diam. : ovary ptirtly enclosed in a deep 

 «up-sliaped calyx .' . . . .90. E. Scheffieri. 



Involucrt- (including glands) about 5 lin. in 

 diam. ; ovary with a very rudimentary 



rim-like calyx . . . . . 91. J?, somalensis. 



Znvolucre-g-lands 4-S, pubescent on tlie 

 Inner or upper surface as well as on tlie 

 back, and ciliate, entire or crenulate, 

 without appendag-es or processes. 

 Leaves .-ill .*iUt mate or clustered ;it tlie ajjex of 

 tlu' steni. 

 l^lant witli a cylindric fleshy tuberculate un- 

 branehed stem -J-3 in. high, with a tuft of 

 leaves ami flowers at the apex . . .110. E. najwides. 



Plant branching, ^-2 (or more ?) ft. high. 

 Bvanchlets ascending; leaves elliptic; petioles 



:i^-l{ in. long 38. E. acalyphoides 



Hranchlets horizontally spreading with up- 

 curved tips; leaves linear - lanceolate; 

 petioles }^ in. or less long . . . 96. E. incurva. 



Leaves opjx)site at the flowering nodes, alternate 



elsewhere, linear or linear-lanceolate . . 41. .E". sarmenlosa. 



Znvolucre-grlands 4-S, rarely 6-8, glabrous 

 on the Inner or upper surface, mostly 

 entire, but sometimes with petal-like 

 appendag-es or 2-horned or tootbed, 

 never divided into several linear or 

 filiform processes. 



