Euphorbia. 



CXXII. EUPHORBIACE/E (bROWN). 



481 



the base (see also 

 63, E. ampla, and 

 65, U. schim- 

 periana). 

 Leaves lanceolate, 

 |— 2 in. broatl ; in- 

 volucre 2\ lin. ill 

 diam. . . . 



Leaves linear-lanceo- 

 late, ^-i in. 

 broad ; involucre 

 1 lin. in diam. 

 linicts triangular- 



ovate, 2-12 jin. 

 broad, subtruncate 

 to subcordate at 

 the base. 

 Greater diam. of the 

 involucre - glands 

 2-2^ times that 

 of the lesser 

 Greater diam. of the 

 involucre - glands 

 not or scarcely 

 twice that of the 

 lesser . . 

 [:;J; Involucre-glands entire, some- 

 times 2-lij)ped when dried, 

 but \yithout teeth or points 

 at the ends. 

 Plant 3-9 in. high, perennial, 

 with a tuberous rootstock ; 

 leaves sessile or subsessile, 

 acute (see also 50, E. 

 ledermanniana) . 

 Leaves opposite, with a 

 whorl at tlie base of the 

 xmibel, lanceolate to 

 elliptic .... 

 Leaves alternate, except at 

 the inflorescence. 

 Leaves acutely "keeled on 

 the midrib beneath ; 

 involucre 2J lin. in 

 diam. 

 Leaves not acutely keeled 

 on the midrib beneath ; 

 involucre 3-4 lin. in 

 diam. 

 Plant 1-5 ft. high. 



Leaves and bracts petiolate ; 



blade ^1| in. long; 



ovary and capsule 



puberulous 



Leaves and Lracts sessile or 



61. E. Enyleri^ 

 68. E. repetita. 



65. E. schimperiana. 



63. E. ampla. 



52. E. verticillata. 



51. E. carinifolia. 



53. E. platycephala. 



73. E. agowensis. 



