POLEMONIACEffi. (GILIA FAMILT.) 79 



viscid nor glandular; stems retrorsely pubescent; leaves mainly smooth, scarcely bipin- 

 natifid; base of the bracts and tube of the calyx densely white-villous; corolla white. 



15. Gr. leucocephala, Gr. A span high, rather slender, loosely branched, smooth, 

 except a little wooUiness at the top; leaves soft; bracts hardly pungent; heads dense; 

 corolla white, longer than the calyx. 



* * * Stamens exgerted; leaves only once pinnatifid, rigid, linear; corolla violet or purple, 



barely half an inch long, about twice the length of the pungent, calyx-lobes, 



16. G. viscidula, Gr. A span high or less, at length much branched, viscid-pu- 

 bescent; bracts palmately cleft. 



17. G-. atiactyloides, Steud. Much more rigid than the last; leaves broader, the 

 floral ovate, all with subulate spiny lobes; few flowered. ' 



§ 6. Hugelifi, Benth. 

 * Eoot perennial; stems woody at the base. 



18. G, densifolia,' Benth. A foot or two high; stems leafy, leaves linear, rigid, tha 

 short lobes subulate; flowers numerous in a compact head; corolla over half an inch 

 long, violet blue, exceeding the calyx, the lobes 3 lines long; anthers sagittate. 



* * Root annual, sterna slender, afoot or less in height; leaves and their few (if any) 



divisions filiform. 



19. G. virgata, Steud. Tube of the blue corolla longer than the calyx; anthera 

 sagittate. 



Var. floribunda, Gr. Low andrather stout; even tbe upper leaves pinnately3-7-parted; 

 the numerous heads and flowers as large as 6. densifolia. 



§ 7. Eugilia, Benth. 



* Flowers numerous in dense head-like clusters on long naked peduncles; stems erect; stamens 



inserted in the very sinuses of the short and broad corolla; leaves twice or thrice pin- 

 nately dissected into linear divisions. 



20. G. capitata, Dougl. Mostly smooth; stem slender, loosely branched above, a 

 foot or two high; lobes of the light blue (rarely white) coroUa narrowly oblong, 2 lines 

 long. 



21. G. achillesefolia, Benth. Stouter and lower than the last, often glandular; 

 the capitate clusters and flowers larger; calyx woolly; lobes of the deeper blue corolla 



broad. 



* * Flowers in small, rather loose clusters, or scattered in an open panicle. 



22. G. multicaulis, Benth. A span to a foot high, simple in early plants, loosely 

 branched in later; flowers few in a. cluster terminating the slender naked peduncles, 

 almost sessile; the violet corolla 4 lines long, tube shorter than the viscid calyx; throat 

 funnel-form; capsule ovoid. 



