684 POLEMONIACEAE 



Intercostal portion of the calyx not replicate. 



Plants conspicuously cespitose, less than 1.5 dm. high. 



Leaves beset with cobwebby hairs; plants densely pulvinate-cespitose. 



I. Canescentes. 

 Leaves not cobwebby, e.xcept sometimes sUghtly so at the base. 

 Leaves glabrous, or merely cobwebby at the base, not glandular. 



II. MULTIFLORAE. 



Leaves hispid-ciUate on the margin, usually with more or less glandular hairs. 

 Leaves hnear to subulate, not with thickened margms. 



III. Caespitosae. 

 Leaves oblong or broadly hnear, with more or less tliickened and cartilag- 

 inous margins. IV. Albo\l\rginat.'VE. 

 Plants suffrutescent at the base, 3-10 dm. high. VI. Speciosae. 

 Intercostal portion of the calyx replicate. V. Longiflokae. 



I. Canescentes. 

 Leaves ovate to lanceolate, densely arachnoid-lanate, mucronate-tipped, but scarcely 

 acerose. 

 Leaves ovate, distinctly 4-ranked, imbricate; corolla-tube twice as long as the calyx. 



1. P. bryoides. 

 Leaves appressed, not conspicuously 4-ranked; coroUa-tube sUghtly if at aU exceeding 

 the calyx. 2. P. ?nuscoides. 



Leaves subulate, acerose, sparsely arachnoid. 

 Corolla small; its limb 8-10 mm. wide. 



Corolla-tube about twice as long as the calyx. 3. P. canescens. 



Coroha-tube shghtly if at aU exceeding the calyx. 4. P. Hoodii. 



CoroUa middle-sized, its hmb 10-15 mm. wide. 5. P. andicola. 



II. MULTIFLORAE. 



Plant not glandular. 



Calyx more than 8 mm. long, its teeth longer than the tube. 



Caly.x and the bases of the leaves arachnoid-hairy. 5. P. andicola. 



Calyx and stem finely vUlous or glabrous; leaves not araclmoid. 



Calyx more than 1 cm. long; leaves flat, the margins not revolute; stem 5-10 



cm. high. 6. P. wultiflora. 



Calyx less than 1 cm. long; leaves very narrow, with revolute margins. 

 Stem and calyx glabrous or nearly so. 7. P. depressa. 



Stem and calyx decidedly villous. 8. P. costata. 



Calyx less than 8 mm. long, its lobes much shorter than the tube. 

 Corolla-lobes 6-8 mm. long. 



Leaves all subulate-filiform. 9. P. scleranthifolia. 



Leaves of the stem broader, inclined to be linear-oblanceolate, those of the 

 fascicles or branches subulate. 10. P. diffusa. 



CoroUa-lobes 4—5 mm. long. 11. P. (jlahrata. 



Plant more or less glandular. 12. P. Douglasii. 



III. Caespitosae. 



Leaves less than 1 cm. long; plant densely pulvinate-cespitose; limb of corolla seldom 

 over 1 cm. broad. 

 Leaves almost erect, appressed; corolla-Umb about 8 mm. wide. 



13. P. condcnsata. 

 Leaves ascending-spreading; corolla-Umb about 10 mm. wide. 



Leaves hnear, flat; margins only sUghtly revolute. 14. P. caespilosa. 



Leaves acerose-subulate ; margins strongly revolute. 15. P. rigida. 



Leaves more than 1 cm. long; plant cespitose, but not pulvinate; coroUa-Umb 12-20 

 mm. wide. 

 Leaves acerose-subiflate ; margins strongly revolute; corolla white. 



12. P. Douglasii. 

 Leaves Unear; margins scarcely revolute; coroUa usually pinkish or purplish. 



16. P. Kelseyi. 



IV. ALBOMARGtNATAE. 



Plant cespitose, but not densely pulvinate, more than 3 cm. high; loaves obiong to broadly 



Unear, 7-20 mm. long. 

 Leaves Unear, 1-2 cm. long; margins not very thick; coroUa-tube twice as long as 



the calyx; young stems white-angled. 16. P. Kelseyi. 



Leaves oblong with very thick margins, 7-12 mm. long; corolla-tube not twice as 



long as the calyx; young stems not white-angled. 17. /'. ah/ssifolia. 



Plants densely pulvinate, less than 3 cm. high; loaves ovate-oblong, less than 5 mm. 



long, witli very tliick margins. 

 Flowers peduncled: corolla-tube over 1 cm. long, more than twice as long as the 



densely glandular calyx. 18. P. albomarginala. 



Flowers subsessile; coroUa-tube less than 1 cm. long, not twice as long as the calyx. 



19. P. diapensioides. 



V. LONGIFOU.\E. 



Plant glabrous or only the upper portion, p(!duncles, and calyces pubescent. 



Plant glabrous tliroughout, or rarely with a few scattered hairs on the calyces and 

 peduncles; caly.x-teeth longer than the tube; leaves less than 2 mm. wide. 



20. P. linearifolia. 

 Plant usually pubescent above, in one variety even glandular; calyx-teeth shorter 



than the "tube; leaves over 2 mm. wide. 21. P. longifoiia. 



