698 POLEMOXIACEAE 



1. L. Bigelovii (A. Gray) Greene. Annual; stem glabrous, 1-3 dm. high, 

 dichotomously branched; lower leaves entire, narrowly linear, the upper 3-divided 

 into similar divisions, glabrous; flowers sessile; calyx glabrous, tubular, 7-8 mm. 

 long, scarious except the ribs; teeth subulate, somewhat recurved-spreading; 

 corolla 10-15 mm. long, white; lobes convolute, obovate. Gilia Bigelovii A. 

 Gray. Desert regions: Tex. — s Utah — Ariz. L, Son, Ap-My. 



2. L. Dactylophyllum (Torr.) Rydb. Low annual; stem hirsutulous, 2-6 



cm. long, branched; leaves 3-cleft, with hnear divisions, or some entire, acerose- 

 ciaspidate, alternate or the upper sub-opposite; flowers short-pcdicelled or sub- 

 sessile; calyx about 4 mm. long, puberulent; sepals distinct to near the base, 

 scarious-margined; corolla white, 6-7 mm. long; lobes ovate. G. Dactylophyllum 

 Terr. G. demissa A. Gray. Linanthus demissus Greene. Desert regions: Ariz, 

 Utah— Calif, L. Son. Ap-My. 



3. L. phamaceoides (Benth.) Greene. Annual; stem 1.5-4.5 dm. high, 

 often diffusely branched, dichotomous, glabrous or minutely puberulent above; 

 leaves 3-7-cleft, with filiform, acerose divisions; flowers with filiform pedicels; 

 calyx 3 mm. long; teeth lance-subulate; corolla white or rose-colored, 7-8 mm. 

 long; filaments bearded at the base. G. phamaceoides Benth. Prairies and plains: 

 Wash.— Ida.— Utah— Calif. Son. Ajy-Jl 



4. L. Harknessii (Curran) Greene. Annual; stem glabrous, 0.5-3 dm. 

 high, dichotomously branched; leaves opposite, 3-5-clcft into filiform divisions, 

 or the upper simple; flowers with filiform pedicels; calyx 2-2.5 mm. long; teeth 

 lanceolate; corolla white, 3^ mm. long. G. Harknessii Curran. Sandy and 

 waste places: Mont.— Colo.— CaUf.— B.C. Son.— Mont Je-Au. 



11. GYMNOSTERIS Greene. 



Diminutive annuals, with simple stems. Leaves proper wanting, the foliage 

 represented by the persistent cotyledons, and the bracts, which are scarious at 

 the base and herbaceous above. Flowers subumbellate. Calyx of 5 united 

 sepals; tube campanulate, scarious, ruptured by the fruiting capsule; lobes 

 unequal, partly herbaceous. Corolla salverform, with slender tube. Stamens 

 5; filaments adnate to the corolla-tube; anthers borne in the throat of the corolla. 

 Seeds membranous-margined or winged; testa thin, mucilaginous when wetted, 

 but not developing spiracles. 



Lobes of the coroUa 3^ mm. long, truncate, undulate at the apex. 1. G. nudicauUs. 



Lobes of the corolla 1-1.5 mm. long, acutish. 2. G. parvula, 



1. G. nudicaulis (H. & A.) Greene. Annual, glabrous; stem 5-10 cm. high; 

 bracts lanceolate, 8-20 mm. long; calyx about 3 mm. long; teeth subulate; corolla 

 10-15 mm. long, white or yellowish; lobes obovate; capsule 4 mm. long or more. 

 Gilia nudicaulis A, Gray. G. puZc/ieKa Greene. Sandy places: Ore.— Ida.— Nev. 

 Son, Ap-My. 



2. G- parvula (Eydb.) Heller. Annual; stem 2-3 cm. high, glabrous; flow- 

 ers capitate; bracts ovate-lanceolate, 5-15 mm. long, often tinged with red; calyx 

 3 mm. long; teeth ovate, acute; corolla wliite or pinkish, 6-8 mm. long; capsule 

 3-4 mm. long, ovoid. G. nudicaulis Greene, in part, and Rydb. (FI. Colo.) 

 Sandy places: Wyo.— Colo.— Utah— Ida. Suhmont.—MonL Je-JL 



12. TINTINABULUM Rydb. 



Lfow slender annuals. Leaves alternate, narrow. Flowers perfect, solitary 

 m the axils, on long reflexed pedicels. Calyx campanulate; lobes subulate, 

 hyalme-margmed. Corolla campanulate, deeply cleft. Ovary 3-celled. Seeds 

 few, often mucilaginous when wetted, but not spiriUifcroua. 



1. T. flliforme (Parry) Rydb. Stem fiUform, 5-20 cm. long, glabrouB, 

 branched; leaves all filiform, entire, 2-4 cm. long; pedicels 0.5-2 cm. long; calyx 

 glabrous, 2 mm. long; corolla white, whitish, or yellowish, 4-5 mm. long, cleft 

 nearly to the base; lobes oblong. Gilia fiUformis Parry. Arid regions: Ariz, 

 s Utah— Calif. Ap-My. ' ' ^ 



