POLEMONIACEZ. (GILIA FAMILY.) 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. G, leucocephala, Gr. A span high, rather slender, loosely branched, smooth, 
except a little woolliness at the top; leaves soft; bracts hardly pungent; heads dense; 
eorolla white, longer than the calyx. 
** * Stamens exserted; 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. atractyloides, Steud. Much more rigid than the last; leaves broader, the 
floral ovate, all with subulate spiny lobes; few flowered. 
§6. Hugelia, Benth. 
* Root 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, a foot or less in height; leaves and their few (if any) 
divisions filiform. 
19. G. virgata, Stend. Tube of the blue corolla longer than the calyx; anthers 
sagittate. 
Var. floribunda, Gr. Low andrather stout; even tbe upper leaves pinnately 3-7-parted; 
the numerous heads and flowers as large as G. densifolia. 
§7. Lugilia, 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) corolla narrowly oblong, 2 lines 
long. 
21. G, achillezfolia, 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 toa 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 
fannel-form; capsule ovoid. 
