Nk7,sox : Ni:\v Plants 'from Wyoming 245 



nutlets were secured on the same plants with the conspicuous 

 flowers it scenes probable that no cleistogamous ones are produced. 

 That dimorphism, as to the insertion of stamens, probably exists 

 here as in the rest of the section seems likely. 



The most nearly allied species is undoubtedly L. aiigitstifoliuui 

 Llichx., but in the rather numerous synonomy of that somewhat 

 polymorphous species I find nothing to indicate that the plant now 

 under consideration has ever been included. This will be dis- 

 tinguished at once from that by the harsh pubescence, the root 

 character, the non-punctate nutlets and its habitat. Thoudi col- 



t> 



lected but once it was observed carefully in its locality where it 

 was abundant : found only on abrupt, shelving slopes of sandstone. 

 Type, no. 4737, Point of Rocks, June 13, 1898. 



Castilleia chromosa 



Stems usually numerous, clustered on the crown (or crowns) 

 of a woody root, simple or sparingly branched, ascending or erect 

 with somewhat decumbent base, 2-4 dm. long : pubescence of 

 two kinds, a fine puberulence and more or less of whitish, crisped 

 hairs : leaves variable ; the lower entire or nearly so, lanceolate to 

 linear, 3-7 cm. long ; the upper pinnatifid, consisting of a lanceo- 

 late blade proper, 3-5 cm. long, and 2-4 linear to lanceolate, 

 widely divaricate or ascending lobes ; the lobes subacute, somcwiiat 

 paired, the upper pair short, the lower about equaling in length 

 the blade proper : inflorescence at first short and dense, at length 



long, more dertsely crisped-hairy 

 than the rest of the plant : bracts somewhat similar to the upper 

 leaves, the lobes less divaricate, about equaling the corolla, from 

 scarlet to yellowish-red : calyx about 20 mm. long, about equally 

 cleft before and behind, the tube about twice as long as the bifid 



o- 



ex- 



lobes : corolla more or less exserted, sometimes one fourth 

 ceeding the calyx, the galea a little longer than the tube, the lip 

 very short and almost truncate, three narrow plicae extending from 

 its margin nearly one third the length of the tube. 



At first I was inclined to think this merely a form of C. an- 



gustifolia Don. but after careful study of all the material at hand in 



the light of Mr. Fernald's excellent presentation of this and the 



allied species * I feel satisfied of the perfect distinctness of C. 



chromosa. 



iifoli 



found to belong to a range considerably to the northwest of this. 



* Erythea, 6 : 41. 



