POLEMONIACEiE. (gILIA FAMTLY.) 79 



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

 niitilid; base of the bracts and tulw of the calyx densely whitc-viUous; 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 white, longer than the calyx. 



* * * Stamens ej^^erted; leaves only once pinnatlfid, rigid, linear; corolla violet or purple, 



harelij half an inch long, about twice the length of the pungent cahjx-lohcs. 

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

 bescent; bracts palmately cleft. 



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

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



§ G. Ilugclia, Benth. 

 * Boot 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. 



* * Jioot 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. floribunda, Gr. Low and rather stout; oven tbe upper leaves pinnately3-7-parted; 

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



§ 7. Eugilia, Benth. 



* Flowers numeroiis in dense head-like clusters on long nalced peduncles; stems erect; stamens 



inserted in the very sinuses of the shoi't and broad corolla; leaves twice or thrice p)i^^- 

 nattly dissected into linear divisions. 



20. G. capitata, Dougl. ^lostly 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. acliilleaefolia, 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 2Mnicle. 



22. G. multicaulis, Benth. A span to a foot high, simi)le 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. 



