PHLOX FAMILY 685 



Plant pubescent throughout. 



Plant densely grajish pubescent, not at all glandular, densely cespitose, with a thick 

 woody caudex. 22. P. austromontana. 



Plant glandular or \'lscid. 

 Corolla-tube glabrous. 

 Leaves 2-4 mm. wide. 



Leaves long-attenuate, not thick; only upper portion glandular; corolla 



scarcely twice as long as the calyx. 21. P. longifolia. 



Leaves obtusish or abruptly acute, thick and firm; corolla-tube fully twice 

 as long as the calyx. 23. P. Siansburyi. 



Leaves 1 mm. wide; corolla not twice as long as the calyx. 



24. P. viridis. 

 Corolla-tube pubescent. 25. P. gladiformis. 



VI. Speciosae. 

 One species. 26. P. speciosa. 



1. P. bryoides Nutt. Plant less than 1 dm. high; leaves densely imbricate, 

 ovate or triangular-lanceolate, 2-3 mm. long, densely cobwebb}^, with inflexed 

 margins; flowers sohtary at the end of the branches, sessile; calyx-teeth subulate, 

 shorter than the tube; corolla about 1 cm. long; lobes obovate, about 3 mm. long. 

 Dry hills: Xeb. — Colo. — Utah — Wyo. Plain — Submont. My-Je. 



2. P. muscoides Xutt. Plant rarely more than 5 cm. high; leaves unbricate, 

 but not 4-ranked, subulate, with revolute margins, 5-8 mm. long, decidedly 

 cobwebby; flowers sessile and solitary at the ends of the branches; calyx-teeth 

 subulate, equalling the tube; corolla 6-8 mm. long; lobes obovate, 3 mm. long. 

 Dry hills: Mont. Submont. My-Jl. 



3. P. canescens T. & G. Leaves subulate, pungent, at length spreading, 

 6-10 mm. long, lanate-canescent, at least when j'oung; flowers sessile, sohtary 

 at the ends of the branches; cah'x arachnoid-hairy; teeth subulate; corolla white, 

 about 1 cm. long; lobes broadly obovate, 4-5 mm. long. Dry hills: w Colo. — 

 X.M.— Calif.— Ida. Submont. My. 



4. P. Hoodii Richards. Leaves subulate, sparingly lanate, 4-10 mm. long, 

 apiculate; flowers sessile, solitary at the ends of the branches; calyx 5-7 mm. 

 long, arachnoid; teeth similar to the leaves; corolla white, 8-10 mm. long; lobes 

 obovate, entire or mucronate, 5 mm. long. Moss Pink, Moss Phlox. Hills 

 and plains: Mack. — Xeb. — Wyo. — Ida. — Yukon. Plain. Ap-My. 



5. P. andicola (Britton) E. Xels. Stem erect, branched at the ground, 

 white, 5-10 cm. high, sparingly arachnoid at the nodes; leaves subulate, 1-2 cm. 

 long, with strong midrib; flowers on short pedicels; calyx-teeth as long as the 

 tube, subulate, pungent; corolla white, half longer than the calyx; lobes obovate, 

 5-7 mm. long. Plains and hills and sandy soil: S.D. — Colo. — Ida. Plain. 

 Je-Jl. 



6. P. multiflora A. Xels. Cespitose perennial, with a suffruticose base; 

 branches erect, finely pubescent, not arachnoid; leaves broadly linear, glabrous, 

 apiculate, 1-2 cm. long; flowers sohtary; peduncles 1-3 cm. long; calyx glabrous 

 or nearly so, about 1 cm. long; lobes linear, with a strong midrib; corolla light 

 blue or white, nearly 2 cm. long; tube longer than the calyx; lobes obovatp, about 

 1 cm. long. P. dasyphylla A. Brand, a small-flowered and narrow-leaved form. 

 Mountains and hills: Mont. — Colo. Subtnont. — Mont. My-Jl. 



7. P. depressa (E. XeLs.) Rydb. Densely cespitose perennial, less than 1 

 dm. high; leaves narrowly linear, 1 cm., rarely 2 cm. long, with strong midrib; 

 flowers subsessile or with very short pedicels; calyx about 8 mm. long, glabrous; 

 teeth subulate; corolla mostly white, 15-18 mm. long; lobes broadly obovate, 

 6-7 mm. long. Open hills: Mont. — Colo. — Utah — Ida. Subm.ont. — Mont. Je- 

 Au. 



8. P. costata Rydb. Stems less than 5 cm. high; leaves about 1 cm. long, 

 linear-subulate, acerose; midrib prominent and margins slightly revolute; flowers 

 solitary; pedicels less than 1 cm. long; calyx strongly ribbed, villous between the 

 ribs; teeth subulate, equalling the tube, more or less spreading; corolla bluish, 

 turning white; tube t\\'ice as long as the calyx; lobes almost orbicular, 7-8 mm. 

 long. Dry ridges: Mont. — (? Utah). Mont. Jl. 



9. P. scleranthifolia Rydb. Branches depressed, glabrous or nearly so; 

 leaves very narrow, about 1 cm. long, less than 0.5 mm. wide, spinulose-tipped, 



