684 POLEMONIACEAE 



Intercostal portion of the caljTc not replicate. 



Plants conspicuoasly cespitose, less than 1.5 dm. high. 



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



I. Canescentes. 

 Leaves not cobwebby, except sometimes sUghtly so at the base. 

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



II. MULTIFLORAE. 



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

 Leaves Unear to subulate, not with tliickened margins. 



III. Caespitosae. 

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

 inous margins. IV. Alboal\rginatae. 

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

 Intercostal portion of the calyx repUcate. V. Longiflorae. 



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; corolla-tube slightly if at all exceeding 

 the calyx. 2. P. muscoides. 



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. 



Corolla-tube slightly if at aU exceeding the calyx. 4. P. Hoodii. 



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



II. Mcx,tiflorae. 

 Plant not glandular. 



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



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



Calyx and stem finely villous or glabrous; leaves not arachnoid. 



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



cm. high. 6. P. multiflora. 



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. costala. 



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. scleranthi folia. 



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

 fascicles or branches subulate. 10. P. diffusa. 



Corolla-lobes 4-5 mm. long. 11. P. ylahrata. 



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



III. C.-VESPITOSAE. 



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

 over 1 cm. broad. 

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



13. P. condensata. 

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



Leaves linear, flat; margins only shghtly revolute. 14. P. caespitosa. 



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



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

 mm. wide. 

 Leaves acerose-subulate; margins strongly revolute; coroUa white. 



12. P. Douglasii. 

 Leaves linear; margins scarcely revolute; corolla usually pinkish or purplish. 



16. P. Kclseyi. 

 IV. Albomarginatae. 



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

 linear, 7-20 mm. long. 

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



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



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

 long as the calyx; young stems not white-angled. 17. P. alyssifolia. 



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

 long, with very tlilck margins. 

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

 densely glandular calyx. 18. P. alhomarginala. 



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



19. P. diapensioides. 

 V. Longifouae. 



Plant glabroirs or only the upper portion, peduncles, and calyces pubescent. 



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

 peduncles; calyx-teeth longer tlian 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. longifolia. 



