POLEMONIACEJ:. (gILIA FAillLY.) 70 



visciil nor glandular; stems retrorscly pubescent; leaves mainly smooth, scarcely Ijipin- 

 natilltl; base of the bracts and tubu of tlie calyx densely white-villous; corolla white. 

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

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

 corolla Avhite, longer than the calyx. 



* * * Stamens ejoierted; leaves onhj once pinnat'ifid, rifjtJ, linear; corolla violet or purple, 



bareli/ li<vf (in inch lonrj, about twice the lenyth of the pun'jent cahjx-lohes. 

 IG. 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. 



§ G. IlugeUa, Benth. 

 * Hoot 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. 



* * Hoot annual, stems slender, afoot or less in height; leaves and their few [f'anjj) 



divisions filiform. 



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

 sagittate. 



Var. floribunda, Gr. Low and rather stout; even the upper lea.vespinnately3-7-parted; 

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



§ 7. Eugilia, Benth. 



* Flowers numerous in dense head-like clusters on long naTced 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 branchetl 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 tlian the last, often glandular; 

 the capitate clusters and flowers larger; caly.x woolly; lobes of the deeper blue corolla 

 broad. 



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



22. G. multicaulis, Bentli. 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. 



