76C FLORA. 



Perennial ; corolla-tube not longer than the calyx. 7. G. congesta. 



Annual ; corolla-tube 2-3 times as long as the calyx. 8. G. pumt'la. 



Clusters bractless; corolla campanulate. 9. G. tricolor. 



Flowers axillary and terminal, scattered. 10. G. acerosa. 



1. Gilia gracilis Hook. Entire-leaved Gilia. (I. F. f. 2983.) Annual, 

 pubescent, at length much branched, 5-15 cm. high, the branches ascending. Lower 

 and basal leaves oblong to spatulate, obtuse, commonly opposite and nearly sessile, 

 the upper linear or lanceolate, sessile, 1-2.5 cm - l° n g» opposite or alternate; 

 cymes 1-5 -flowered; calyx-lobes linear-subulate; corolla 8-12 mm. long, the tube 

 yellowish, narrow, the lobes purple or violet, short; ovules 2 or 3 in each cavity; 

 capsule oblong, obtuse; seeds mucilaginous when wet. In dry or moist soil, 

 western Neb., Colo, and N. Mex. to Br. Col. and Cal. April-Aug. 



2. Gilia caespitosa (Nutt.) A. Nelson. Tufted Gilia. Sharp-leaved 

 Gilia. Shrubby, densely tufted, rigid, usually much branched, 0.5-1.5 dm. 

 high. Leaves alternate, sessile, 5-7 mm. long, palmately divided into 3 -5 subu- 

 late rigid awl-shaped segments, often with smaller ones fascicled in their axils, 

 sometimes densely imbricated; flowers solitary, or 2-3 together, sessile at the 

 ends of the branches, 10-15 mm - l° n gj calyx-lobes 4, subulate, as long as the tube, 

 or shorter; corolla white to yellowish, salverform, the tube longer than the calyx, 

 the limb 4-lobed; stamens 4; seeds not mucilaginous when wetted. In dry soil, 

 Neb. and Wyo. May-July. \_Gilia piingens caespitosa (Nutt.) A. Gray.] 



3. Gilia longiflora (Torr.j Don. White-flowered Gilia. (I. F. f. 2985.) 

 Annual, glabrous, paniculately branched, 3-6 dm. high. Leaves all alternate, 

 sessile, 2-6 cm. long, pinnately divided or the uppermost entire; flowers white, 

 paniculate, about 5 cm. long; calyx-teeth triangular-lanceolate, acuminate; corolla 

 salverform, its tube narrow, 4 or 5 times as long as the orbicular or ovate, spread- 

 ing lobes; stamens unequally inserted; ovules 8-12 in each cell; capsule narrowly 

 oblong; seed-coat mucilaginous and emitting spiral threads when wetted. In dry 

 soil, Neb. and Colo, to Tex. and Ariz. May-Sept. 



Gilia rubra (L.) Heller (G. coronopifolia Pers.), a related species with less spread- 

 ing corolla-lobes, is commonly cultivated, and rarely escapes from gardens. 



4. Gilia aggregata (Pursh) Spreng. Scarlet Gilia. (I. F. f. 2986.) Bien- 

 nial, pubescent or puberulent; stem 6-12 dm. high. Leaves alternate, the basal 

 often tufted, mostly petioled, 2-8 cm. long, pinnately parted into narrowly linear 

 segments; inflorescence often 3 dm. long; flowers sessile or nearly so in small 

 peduncled clusters, scarlet or red; corolla tubular-funnelform, the tube 2-4 cm. 

 long, the limb cleft into ovate or lanceolate acute or acuminate spreading or re- 

 curved lobes; ovules numerous; seeds mucilaginous and emitting spiral threads 

 when wetted. In dry soil, Neb. and Wyo. to Tex., Mex., Br. Col. and Cal. 

 June-Aug. 



5. Gilia pinnatifida Nutt. Small-flowered Gilia. (I. F. f. 2987.) Bien- 

 nial or perennial from a deep root, much branched, viscid-glandular, 1.5-6 dm. 

 high. Leaves thick, pinnatifid, the basal tufted, 2-8 cm. long, the segments 

 linear-oblong, those of the stem alternate, the uppermost minute and entire; 

 flowers numerous, paniculate; calyx 5-lobed, the lobes lanceolate to ovate; corolla 

 salverform, 6-10 mm. long, the limb violet or blue, its white tube longer than the 

 calyx and its obovate lobes; stamens exserted; seeds not mucilaginous when 

 wetted. In sandy soil, Neb. and Wyo. to N. Mex. June-Aug. 



6. Gilia spicata Nutt. Spicate Gilia. (I. F. £ 2988.) Perennial, woolly- 

 tomentose; stems stout, simple, 1. 5-5 dm. high. Leaves alternate, narrowly 

 linear, entire, or pinnately parted into 3-5 linear segments, 2-5 cm. long; flowers 

 in an elongated narrow thyrsus, sessile in small clusters, purplish. 8-12 mm. long; 

 tube of the corolla considerably longer than the ovate-oblong lobes; calyx-lobes 

 acuminate; anthers equally inserted in the throat of the corolla. In dry soil, 

 western Neb. and Kans. to Wyo. and Utah. May-Aug. 



7. Gilia congesta Hook. Round-headed Gilia. (I. F. f. 2989.) Peren- 

 nial, w<x>lly-tomentose, at least when young, 0.7-4.5 dm. high. Leaves mostly 

 petioled) 1-5 cm. long, pinnately divided into 3-9 sharp-pointed segments, or the 

 uppermost entire; flowers white, densely capitate-clustered, 4-6 mm. long; calyx- 

 lobes awn-like; corolla-tube about the length of the calyx; filaments equally 



