2(50 BOTANY. 



ciliate, otherwise glabrous or sparingly glandular-roughened, mostly revolute 

 on the margin; tube of the white corolla a little exceeding the calyx, the 

 lobes obovate, entire, 3" long ; ovules solitary. — From Colorado to Montana, 

 Oregon and the Sierras. Clover Mountains, Nevada ; 10,000 feet altitude ; 

 September. (890.) 



Var. RiGiDA, Gray. Depressed; the acerose-subulate leaves at length 

 recurved -spreading, sparingly glandular- roughened. — Oregon, (Douglas.) 

 Found on the highest peak of the Clover Mountains, Nevada ; 11,000 feet 

 altitude ; September. (891.) A more pubescent form, coming near to P. 

 Douglasii, was also collected on peaks of the East Humboldt Mountains, Ne- 

 vada ; 9,000 feet altitude ; July. (892.) 



Phlox Douglasii, Hook. Gray, I. c, p. 254. Eesembling the last ; 

 csespitose and very much branched, pubescent or nearly glabrous ; leaves 

 rather rigid, acerose, usually spreading, less dense, the margins either naked 

 or hirsutish-ciliate at the base ; flowers subsessile ; corolla purple or white, 

 the tube more or less exceeding the calyx, the lobes obovate, entire, 3" long ; 

 ovules solitary. — From the Rocky Mountains of Colorado and Montana to the 

 Sierras and Washington Territory. In canons near Carson City, Nevada ; 

 April, at 5,000 feet altitude, with the ciliation on the calyx and at the base 

 of the leaves more than usually webby ; also at the head of Provo Canon in 

 the Uintas, at 9,000 feet altitude ; July. (893.) 



Var. LONGiFOLiA, Grray. Branches usually erect from a prostrate rhi- 

 zoma; leaves very narrowly or acerose-linear, 5-8" long, less fascicled. — Ap- 

 proaching -P. longifolia, and occurring " east of the Rocky Mountains and in 

 Utah." Not in the collection. 



Phlox longifolia, Nutt. Gray, I. c, p. 255. Perennial, woody only at 

 base, glabrous or pubescent ; stems erect or ascending, 2-12' high ; leaves 

 shghtly rigid, not fascicled, spreading, very narrowly or narrowly linear or 

 sometimes lanceolate, 1-3' long ; flowers solitary or subcymose, long-pedun- 

 cled ; calyx-tube usually angled to the base by the infolding of the scarious 

 intercostal membranes ; corolla white or pink, the tube exceeding the narrow- 

 subulate calyx-teeth, the lobes obovate- or oblong-cuneate, entire or retuse ; 

 style elongated and frequently equaling the tube ; ovules almost always soli- 

 tary.— From the Rocky Mountains of Colorado to Washington Territory and 

 the Sierras. A smooth form was collected in the East Humboldt Mountains ; 

 8-9,000 feet altitude ; July. (894.) 



