to the Rocky Mountains. 245 



404. Stillingia sylvatica, L. (3. salicifolia, foliis lan- 

 oeolatis, acutiusculis, crenato-serrulatis. 



Hab. On the Canadian ? 



Obs. This may be a distinct species, but 1 am unable to 

 discover sufficient characters to separate it from S. sylvatica. 

 Except in the leaves being much narrower, and more distinct- 

 ly serrate, they appear to resemble each other exactly. 



405. Croton ellipticum, Nutt. gen. ii. p. 225. excl. 

 syn. Sources of the Canadian. 



Obs. Very distinct from C. capitatum, Michx. with which 

 Mr. Elliott appears to have confounded it. A variety of this 

 plant was found by Dr. James, with the leaves larger and 

 distinctly stellato-pubescent. 



408. C. glandulosum, L. Pursh jl. ii. p. G03. Kunth 

 syn. ii. p. 397. With the preceding. 



Obs. This differs in some respects from the southern plant, 

 in the stem being minutely stellato-pubescent, whilst that is 

 crisped, with long spreading hairs, besides the stella?. 



407. Tragia ramosa, caule herbaceo, piloso, ramosissi- 

 mo ; foliis petiolatis, ovato-lanceolatis, argute serratis, sub- 

 tus hirsutis, basi subcordatis ; racemis S filiformibus, pauci- 

 floris, basi 9 



Desc. Stem about a span high, much branched, slender, hairy. Leaves 

 alternate, ovate-lanceolate, coarsely serrate, with acuminate serratures, 

 base acute or subcordate ; under surface hirsute, upper with a few ap- 

 pressed hairs; petioles one-third of an inch long-, with subulate stipules at 

 the base. Racemes axillary towards the upper part of the stem. Sterile 

 Jlowers superior, G-8, on short, filiform, bracteate pedicels. Calyx 4-parted> 

 segments lanceolate, recurved, apex innexed. Stamens 4. Pistil abor- 

 tive. Fertile Jlowers. Calyx 5-parted. Stigmas 3, large, recurved. 

 Capsule tricoccous, hispid. Seeds perfectly spherical, smooth. 



Hab. Sources of the Canadian? 



Obs. Resembles T. urticifolia, but differs in its narrow 

 leaves, much branched, and smoother stem. 



408. Jatropha stimulosa, Michx. Jl. ii. p. 21G. On 

 the Canadian. 



