POLEMONIACEAE (PHLOX FAMILY) 395 



1. Phlox bryoides Nutt. PI. Gamb. 153. 1848. Copiously lanate, densely 

 caespitose and depressed, forming cushion-like mats: leaves short, imbricated 

 in 4 strict ranks, crowded up to the mostly solitary flowers, ovate or triangular- 

 lanceolate, about 3-4 mm. long, the margins usually inflexed: tube of the 

 corolla exceeding the calyx, the cuneate lobes about 3 mm. long. Stony slopes 

 and ridges at middle elevations; Colorado to Montana and west to Utah. 



2. Phlox muscoides Nutt. Journ. Acad. Phila. 8: 42. 1834. Like the pre- 

 ceding, more resembling some canescent moss: the branches much tufted, 

 very short: leaves less strictly 4-ranked and less lanate, ovate-lanceolate: tube 

 of the corolla not surpassing the calyx. Rare; Montana. 



3. Phlox canescens T. & G. Pacif.R.R.Rep.2: 122. 1855. Densely caespi- 

 tose, lanate and somewhat canescent, at least when young: leaves subulate, pun- 

 gent, somewhat granular-roughened, at length recurved-spreading, 6-10 mm. 

 long: corolla white (tube " yellow "), somewhat hairy at base within, twice the 

 length of the calyx or nearly so, the lobes broadly obovate to rotund, usually 

 entire, about 5 mm. long: style less than half the length of the corolla-tube. 

 Western Colorado to California. 



4. Phlox Hoodii Rich. Frankl. Journ. App. pi. 28. 1823. Densely tufted 

 and much branched from a somewhat woody root, sparsely lanate: leaves 

 subulate, apiculate, with broader clasping bases, 4-10 mm. long: calyx 5-7 mm. 

 long, the teeth like the leaves, the thickened central portion of the teeth 

 produced into strong ribs on the tube below : corolla white, the tube equaling 

 or somewhat exceeding the calyx, the lobes obovate, entire or mucronate, 

 about 5 mm. long. Flowering early in the spring on the plains and foothills; 

 from Saskatchewan to Montana and Wyoming. 



5. Phlox glabrata (E. Nels.) Brand, Pflanzenreich, Polem. 86. 1907. De- 

 pressed-caespitose; stems very numerous from the small, ligneous, branched, 

 rhizomatous caudex, ascending, the internodes very short: leaves glabrate, 

 densely imbricated-appressed, nearly linear, 5-6 mm. long: flowers solitary, 

 sessile: calyx subglabrous, the lobes shorter than the tube: corolla 8-10 mm. 

 long, the tube scarcely longer than the calyx, the lobes broadly ovate, not 

 much shorter than the tube: stamens inserted in the throat: style as long as 

 the calyx. (P. Hoodii glabrata E. Nels. Rev. W. N. A. Phloxes 11.) On the 

 high plains of southern Wyoming. 



6. Phlox condensata (Gray) E. Nels. Rev. W. N. A. Phloxes 13. 1899. 

 Densely pulvinate-tufted: leaves much imbricated, rigid, oblong-linear, apicu- 

 late, distinctly bisulcate, hispid-ciliate on the margins and slightly glandular, 

 5-6 mm. long: calyx as long as the leaves, the teeth oblong-linear, apiculate: 

 corolla white, the tube twice the length of the calyx or less, somewhat hairy 

 at the base within, the lobes rotund, 4.5 mm. long: style shorter than the ca- 

 lyx. (P. scleranthifolia Rydb. Mem. N. Y. Bot. Gard. 1: 313. 1900, at least 

 as to Colorado specimens.) At high altitudes in Colorado. 



7. Phlox caespitosa Nutt. 1. c. 41. Densely or somewhat loosely caespitose, 

 often with long, prostrate stems: leaves oblong-linear or lanceolate, apiculate, 

 8-14 mm. long, 1-2 mm. wide, usually plane, the somewhat cartilaginous 

 margins hispid-ciliate or naked, surface glabrous or with short, scattered, 

 gland-tipped hairs: flowers sessile or subsessile (peduncles rarely 2 mm. long): 

 calyx more or less hispid-ciliate and usually with some short gland-tipped hairs, 

 the teeth as long as the tube, lanceolate or narrowly so, pungent: corolla 

 white or light blue, the tube slightly hairy at base within, about three times 

 the length of the calyx-teeth, the lobes broadly obovate, 5-7 mm. long. In 

 the mountains from New Mexico to Montana; type locality, "Flat-Head 

 River, on the sides of dry hills." 



8. Phlox alyssifolia Greene, Pitt. 3: 27. 1896. Stems nearly prostrate, 

 herbaceous, short, stout, from a subligneous branching caudex, the short 

 internodes hispidulous with white hairs: leaves 10-18 mm. long, oblong- 

 linear, cuspidately acute, plane, rather thick, with callous, white, entire mar- 

 gins, and a similar midvein very prominent beneath, though obsolete above, 

 both faces glabrous, only the margins loosely ciliate toward the base of the 

 leaf: flowers very few, large, pale purple or white, short-pediceled at the 



