﻿ment, but always with more or less of a hyaline margin; 

 fruit about 6" long, nearly round to oval and deeply 

 emarginate above; wings 2-3" wide, with a narrow, corky 

 margin next the seed; otherwise very thin; oil tubes 3-4 

 in the intervals and 8 on the commissure, not evident ex- 

 ternally; leaf sheaths enlarged at the base and stems 

 covered below with long, hyaline leafless sheaths ; leaves 

 from fully to barely bipinnate, with obovate, often lobed 

 divisions, always glaucous and thick, 3-4' long, mostly 

 ovate in outline, with petiole equaling or exceeding the 

 blade. B 



Cymopterus glomeratus var. Parryi (C. & R. IJm- 

 bell. 50) Jones. 



Coloptera Parryi C. & R. Umbell. p. 50. 



Cymopterus Parryi (C. & R.) Jones, Zoe, 4, p. 49. 



I do not adopt the obsolete name C. acaule (Pursh). 



An examination of the material referred to this species 

 al Herbarium shows that the specific char- 

 agree with the generic character given b V 

 Coulter & Rose under Coloftera, the flowers being white 

 instead of yellow. The other two species described by 

 them, as I have already indicated in Zoe, 4, p. 49 , have a 

 minute hyaline involucre, while this species has no trace 

 <»f any. and therefore mu ' 



witn a large suite of specimens of C. glomeratus there is 

 absolutely no character of leaf, habit, or inflorescence to 

 separate this species from that. The onlv character and 

 that a variable one, lies in the wing of the fruit, which in 

 some specimens is quite thick on the outer edge and with 

 only a rudimentary thin prolongation beyond, but in other 

 specimens the prolongation is more pronounced. In some 



the plains, the corky portion of the wing is quite narrow 





