EupkcrblaJ] 



CXXII, BUPHORBIACEiE (bROWN). 



475> 



Involucre 1-2^ liu. in diaui., 

 including the conspicuous 

 glaud-appendages ; leaves 

 and pubescence variable. 

 Stems prostrate, much 

 bi'anched .... 



Stems pi'ostrate or erect and 

 clustered, simple or spar- 

 ingly branched . 

 Involucre \-^ lin. in diam., 

 including the mostly in- 

 conspicuous or sometimes 

 absent gland-appendages. 

 Leaves rather thick and fleshy 

 or rigidly coriaceous, 

 glaucous, without a red 

 spot, usually crowded. 

 Leaves acute 



Leaves very obtuse or 

 rounded at the apex, 

 sometimes apiculate. 

 Involucre miimte, about 

 ?j lin. in diam.; leaves 

 entire or minutely 

 toothed at the apex . 

 Involucre f lin. in diam. ; 

 leaves with very 

 miuijtely toothed car- 

 tilaginous margins 

 Involucre f lin. in diam. ; 

 leaves entire or very 

 obscurely toothed at 

 the apex . 

 Leaves herbaceous, not glau- 

 cous, toothed or entire. 

 Leaves oblong, often with 



a red spot 

 Leaves linear or linear- 

 lanceolate, no red spot . 

 ft Branches prostrate, pubei'ulous on the 

 upper side, at least along a central 

 line, with minute curved (rarely 

 straight) hairs, glabrous on the 

 under side ; leaves sometimes pu- 

 beruloui beneath. 

 Involucre (including the conspicuous 

 red gland-appendages) l|-2 liu. 

 in diam. ..... 



Involucre (including the gland-ap- 

 pendages) 1^-1 liu. in diam. 

 Primary stems 2-8 in. long; gland- 

 appendages just exceeding the 

 margin of the gland or obsolete. 

 Pubescence on branches of 

 minute curved hai^-s • • 



15. E, SivfB. 



9. E. zaitt/ffiiana and var». 



16. E. 2*rojnnqva. 



14. E. NeUii. 



12. J'i fflanduli^era, 



13. E. siibterminalU. 



21. E. sangtiinea. 

 17. E. 'polycnemoides. 



I. E. ruhriflora. 



24. //. firo*traia. 



