698 POLEMONIACEAE 



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 linear divisions, or some entire, acerose- 

 cuspidate, alternate or the upper sub-opposite; flowers short-pedicelled 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 

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

 s Utah Calif. L. Son. Ap-My. 



3. L. pharnaceoides (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. pharnaceoides Benth. Prairies and plains: 

 Wash. Ida. Utah Calif. Son. Ap-Jl. 



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

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

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

 lanceolate; corolla white, 3-4 mm. long. G. Harknessii Curran. Sandy and 

 waste places: Mont. Colo. Calif. 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 corolla 3-4 mm. long, truncate, undulate at the apex. 1. G. nudicaulis. 

 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. pulchella Greene. Sandy places: Ore. Ida. Nev. 

 Son. Ap-My. 



2. G. parvula (Rydb.) 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 white or pinkish, 6-8 mm. long; capsule 

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

 Sandy places: Wyo. Colo. Utah Ida. Submont. Mont. Je-Jl. 



12. TINTINABULUM Rydb. 



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

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

 hyaline-margined. Corolla campanulate, deeply cleft. Ovary 3-celled. Seeds 

 few, often mucilaginous when wetted, but not spirilliferous. 



1. T. filiforme (Parry) Rydb. Stem filiform, 5-20 cm. long, glabrous, 

 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 filiformis Parry. Arid regions: Ariz. 

 s Utah Calif. Ap-My. 



