1902] ROCKY MOUNTAIN PLANTS H 



moderately bilabiate ; the lobes entire, rounded, sparsely bearded 

 on the lower lip: sterile filament but slightly enlarged upward, 

 rather stifty bearded at tip ; anthers dehiscent through the 

 junction of the cells, but not explanate. 



That the large number of forms that have figured as P, confertiis DougL 

 and varieties of it have given rise to no little trouble is admitted by all. An 

 3-ggi'egate is always confusing. As tending toward a simplification, it seemed 

 to every one proper to restore to specific rank P. procerus Dougl., published 

 by Graham in Edinb. Phil. Journ., 1829, This, so long known as P, confcrtus 

 caeruleo-piirpureiis, is so evidently distinct that no one ever thinks of mistak- 

 ing it for the species to which it has been appended. 



The species now proposed, while a member of this same group, is as 

 distinct from P. procerus as the latter is from P, confertus. The habitat of 

 the two is characteristic. P. procerus is found at middle elevations and up 

 to the limit of trees, occurring on moist slopes and in the valleys, P. Owenii 

 is strictly alpine and occurs in clumps among the rocks of the "slides." The 

 former is glabrous, the latter puberulent on the stems and glandular-pubes- 

 cent on the inflorescence. The inflorescence of the former is nominally verti- 

 cillastriform, of two to five rather remote verticils ; the latter is spicate-capit- 

 ellate with at most one proximate verticil, and the corollas of the latter are 

 much larger than in the normal form of the other, less strongly bilabiate, and 

 relatively longer when compared with the calyx. 



This species is dedicated to that intrepid mountaineer, Hon. W. O. Owen, 

 who in September 1898, with a small party, successfully scaled the Grand 

 Teton and left upon its summit permanent record of the achievement. Mr. 

 Owen brought back from this memorable trip several specimens of alpine 

 plants, among which was a specimen of this species. It has been collected 

 again in 1899, August 16, by the writer, this time also on the Tetons at an 

 alpine station, no. 6515 being the type. More recently collected by Messrs. 

 Aferrill and Wilcox, rgoi, and ; 



Synthyris flavescens, n. sp. — Nearly glabrous throughout from 

 the first, green even to the floral bracts: rhizome thick, short, hor- 

 rizontal, with numerous thick, fibrous roots : stems few to sev- 

 eral, strict, leafy-bracteate, S-S"^"" high:Jeaves few, radical, 

 ovate-lanceolate, sub-acute, finely serrate-crenate, 6-10*'°' long, 

 mostly exceeding the comparatively slender petioles ; the foliar 

 bracts of the stem broadly ovate^ acute, serrations similar to 

 those of the leaves, 1-2^'^ long; floral bracts ovate-rhomboid 

 to lanceolate, acute, entire or very unequally two-lobed, sessile 



