POLEMONIACE^. (gILIA FAMILY.) 79 



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

 uatifid; base of the bracts and tuba of the calyx densely white- villous; corolla white. 



15. G. l3ucocepliala, Gr. A span high, rather slender, loosely branched, smooth, 

 except a little woolliness at the top; leaves soft; bracts hardly j)ungent; heads dense; 

 corolla white, longer than the calyx. 



* * * Stamens ex>ierted; leaves only once pinnatifidy rigid., linear; corolla violet or purple, 



harely half an inch long, about tivice the length of the pungent calyx-lobes. 



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

 bescent; bracts j)almately cleft. 



17. G. atiactyloides, Steud. ]\Iuch more rigid than the last; leaves broader, the 

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



§ 6. Ilugelia, Benth. 

 * Eoot perennial; stems woody at the base. 



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

 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, stems 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; anthers 

 sagittate. 



Var. floribtinda, Gr. Low and rather stout ; even the upper leaves pinnately 3-7 -parted; 

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



§ 7. Eugilia, Benth. 



* Flowers numerous in dense head-like clusters on long naked peduncles; stem.s 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) corolla narrowly oblong, 2 lines 

 long. 



21. G. achilleaefolia, 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. 



