690 POLEMONIACEAE 



2. L. pungens (Torr.) Nutt. Suffruticose perennial, 1-3 dm. high; leaves 

 5-8 mm. long, puberulent, but not glandular, or glabrate, digitately 3-7-divided, 

 with linear-subulate, straight, ascending divisions; flowers axillary, solitary; calyx 

 tubular, 5-ridged, about 1 ,cm. long, glabrate; teeth subulate, pungent, much 

 shorter than the tube; corolla yellow or yellowish, 15-20 mm. long; lobes about 

 5 mm. long, oblong. Gilia pungens (Torr.) Benth. Sandy valleys and hill- 

 sides: Mont. — Colo. — Calif. — B.C. Plain — Mont. Je-Jl. 



3. L. brevifolium Rydb. Suffruticose, branched perennial, 1-2 dm. high; 

 stems puberulent and shghtly glandular above; leaves 3-5 mm. long, glandular- 

 puberulent or glabrate, 3-5-divided into subulate, acerose ascending divisions; 

 calyx about 8 mm. long, glandular-puberulent ; teeth subulate-acerose, much 

 shorter than the tube; corolla about 15 mm. long. Dry hills: Utah — Wash. — 

 (? Colo.). Son. Je. 



4. L. patens Heller. Suffruticose perennial, 1-3 dm. high; branches puberu- 

 lent; leaves 5-7 mm. long, curved, 3-7-divided into subulate divisions, puberu- 

 lent or glabrate, somewhat glandular; calyx 7-8 mm. long, glandular-puberulent; 

 teeth subulate, erect, shorter than the tube; corolla about 15 mm. long, trumpet- 

 shaped; lobes oblong, about 6 mm. long; stamens inserted in the throat. Gilia 

 punge7is squarrosa A. Gray. Arid regions: Utah — Ariz. — Nev. Son. Je-Jl. 



5. L. Watsonii (A. Gray) Rydb. Suffruticose perennial; stems erect, 5-15 

 cm. high; branches glandular-pubescent; leaves opposite, palmately 3-7-divided, 

 with narrowly linear acerose divisions, glandular-pubescent; calyx tubular, 

 glandular-ciliate; teeth subulate, much shorter than the tube; corolla white, with 

 a purplish throat, 18-25 mm. long; lobes oval, nearly as long aa the tube. G. 

 ll'a.'sonn A. Giay. Cliffs and rocky hills: Utah — Colo. Son. — Submont. My-Jl. 



6. L. Nuttallii (A. Gray) Rydb. Perennial, with a woody base; stems 

 numerous, erect, 1-3 dm. high, crisp-puberulent; leaves palmately 3-7-divided 

 into linear or linear-filiform divisions, or the lower ones entire; flowers axillary, 

 clustered at the ends of the stems; calyx tubular, villous; teeth lance-subulate; 

 corolla 1-2 cm. long, salver-shaped, white with a yellow throat; lobes oval. Gilia 

 Nuttallii A. Gray. Mountains: Wash. — Wyo. — N.M.— Calif. Mont. — Subalp. 

 My-Au. 



8. GILIA R. & P. 



Annual, biennial, or perennial herbs. Leaves all or at least the upper ones 

 alternate, entire to pinnatifid. Flowers perfect, mostly cymose. Calyx cam- 

 panulate; tube more or less hyaline in the sinuses and bursted by the fruit; lobes 

 subequal. Corolla trumpet-shaped or salverform, with an open salverform 

 throat. Stamens 5, usually equally high inserted. Capsule usually many 

 seeded; seeds changed when wetted, mucilaginous and usually spirilliferous. 



Flowers capitately or spicately glomerate. 



Plant strigose or short-villous (nearly glabrous in G. nuda) ; flowers leafy-bracted. 

 Perennials; flowers in dense heads or spikes. I. Conge.st.\e. 



Annuals, repeatedly branched, with small clusters of flowers in the axils of the 

 leaves, more capitate at the ends of the branches. II. PumiLu\E. 



Plants glabrous; flowers in long-peduncled heads, not leafy-bracted. 



III. Capitatae. 

 Flowers openly paniculate or thyrsoid-paniculate. 

 Leaves pinnately divided. 



Corolla- tube over 1 cm. long; calyx-lobes lanceolate, attenuate and spine-tipped; 

 biennials. 

 Inflorescence thyrsoid, narrow. IV. Aggregatae. 



Inflorescence open and incUned to be flat-topped. V. Longiflorae. 



Corolla-tube less than 1 cm. long. 



Stamens conspicuously exserted; corolla nearly salverform; biennials. 



V'l. Pinnatifidae. 

 Stamens not exserted, or barely so; corolla with a more or less funnelform 

 throat; annuals. VII. Inconspicuae. 



Leaves entire or the lower ones toothed or lobed. 



Leaves not flhform. VIII. Leptomeriae. 



Leaves or then- divisions filiform: annuals. IX. Minuti florae. 



I. CONGESTAE. 



Leaves entire. 



Plant 3^ dm. high, suflhruticose. 1. G. frutescens. 



