4 CONTRIBUTIONS TO WESTERN BOTANY. 



villous, hispid, often glandular; bracts unilateral when not united 

 into a sheath or broad ring, 2-3, green, acute, awned; involucre* 

 deeply and sharply lobed. turbinate (to campanulate?) ; flowers 

 very small, the staniinate smaller and on shorter pedicels; slender 

 annuals: leaves clustered at or near the base, linear to obovate, 

 with a tapering base and short petiole. 



0. dendroidea var. Hillmani (Stokes ined.) 



Intricately much branched from the base, delicate and jow, 

 with internodes mostly not over 6'" long; most of the peduncles 

 not over one line long, some of the lower ones normal ; awns much 

 longer than the minute involucres: tlowers all exserted, the fer- 

 tile the more so and oblong to oval with purplish or green sepals 

 close pressed to the akenes and minutely hispid, sterile flowers 

 whitish, campanulate. barely exserted, open, less pubescent. Reno 

 to Contact, central Nevada, in the Lower Temperate life zone, 



Var. foliosa (Xutt. PL Gamb. 169.) 



This is a more robust form with root leaves often 3 lines 

 wide and narrowly lanceolate, and all but the uppermost bracts 

 large and leaf-like, lanceolate and sessile; flowers and last divi- 

 sions like those of the var. Hillmani; involucral peduncles often 

 J line long; plants often cover 2 square feet; involucres long- 

 spined. Same range as the type. 



If the limits of Oxytheca are to be extended beyond the awned 

 species then tlie genus must also include the following species of 

 Eriogonum. K. spergulinum, Parishii, hirtiflorum, and glandulo- 

 sum. To include these species in Oxytheca will necessitate the re- 

 duction of Oxytheca to Eric^gonum. 



ERIOGONUM. 



Eriogonum marifolium var. incanum ( T. & (\. Proc. Am. 

 Acad. 8 161.') E. incanum, T. & G. 



