PHLOX FAMILY 681 



Corolla yellow, ochroleucous, or greenish. 



Corolla f unnelform ; stamens adnate to the middle of the corolla- tube. 



18. P. melliium. 

 Corolla almost tubular; stamens almost wholly adnate to the corolla-tube. 



19. P. Brandcgei. 



1. P. micranthum Benth. Annual; stem branched from the base, glandu- 

 lar-puberulent, erect or ascending, 0.5-2.5 dm. high, leafy; leaves viscid-villous; 

 leaflets 11-13, rounded, 3-6 mm. long; flowers axillary, solitary, pcdjrrllrd; 

 corolla whitish; filaments dilated at the base; ovules 2-3 in each cell. Sandy 

 places: B.C. Mont. Utah Calif. Submont. Ap-My. 



2. P. columbianum Rydb. Stems several, 2-3 dm. high, distinctly glandu- 

 lar in the inflorescence; leaves 5-15 cm. long, sparingly viscid, pubon-nt; leaf- 

 lets 9-19, elliptic or lance-elliptic, acute, 1.5-3 cm. long; calyx about 6 mm. loi 

 lobes lanceolate, acute, fully equalling the tube; corolla violet, with yellowish 

 base"; lobes rounded-truncate at the apex; stamens slightly longer than the 

 corolla. Woods: Ida. Wash. Ore. Submont. Je-Au. 



3. P. delicatum Rydb. Stem very slender, about 1 dm. high; leaves 3-8 

 cm. long; leaflets 11-23, ovate, ovate-lanceolate, or oblong, mostly acute, 3-10 

 mm. long; calyx glandular, 4-5 mm. long; lobes lanceolate, acute; corolla violet, 

 about 7 mm. high and 8 mm. broad; stamens nearly equalling the corolla. /'. 

 humile pulchellum A. Gray, not P. pulchellum Burge. P. scopulinum Greene. 

 Mountains: Colo. Utah Ariz. N.M. Mont. Alp. Jl-Au. 



4. P. parvifolium Nutt. Stems rarely more than 1 cm. high, glandular- 

 puberulent, almost scapose; leaflets 11-25, oval or suborbicular, rounded, : 

 mm. long; inflorescence dense; calyx about 4 mm. long; lobes oval or elliptic; 

 corolla dark violet, 7-9 mm. long; lobes rounded; stamens nearly equalling the 

 corolla. P. mexicanum Nutt. Mountains: Mont. Je-Jl. 



5. P. pulcherrimum Hook. Stems 1-3 dm. high, glandular-puberulent; 

 leaflets 15-27, oval, mostly obtuse, 5-10 mm. long; calyx about 5 mm. long; 

 lobes lanceolate; corolla 8-10 mm. long, violet or rose-colored, with a yellowish 

 base; lobes rounded; stamens shorter than the corolla. Mountains: Alta. Wyo. 



B.C. Mont. Subalp. Je-Au. 



6. P. Haydeni A. Nels. Stems several, 2-3 dm. high, glandular-puberulent, 

 especially above; leaflets 15-25, oval, oblong, or oblanceolate, 5-10 mm. long; 

 calyx narrowly campanulate, 5-6 mm. long, glandular-puberulent; corolla blue, 

 campanulate, 10-15 mm. long; stamens often equalling the corolla. Mountain- 

 sides: Wyo. Mont. Ida. Je-Jl. 



7. P. albiflorum Eastw. Stems solitary or few, 3-6 dm. high, glandular- 

 puberulent or pubescent; leaflets 11-15, lanceolate, acuminate, 1- ! cm. long; 

 calyx 7 mm. long, densely glandular; lobes lanceolate, acute or obtuse; corolla 

 cream-colored or white, about 15 mm. long; stamens usually longer than the 

 corolla. Mountains: Utah Nev. Submont. Mont. Je-Jl 



8. P. Archibaldae A. Nels. Stem 4-7 dm. high, glabrous below, glandular 

 above; inflorescence openly cymose-corymbose, minutely glandular; leaflet 



19 oblong-lanceolate, 2-4 cm. long; calyx 6-8 mm. long; lobes lanceolate, : 

 corolla-lobes orbicular; stamens much shorter than the corolla: 

 cent at the base. P. grande Greene. Mountains: Colo - 



9. P. molle Greene. Stem 3-6 dm. high, densely villous; leaflets 1:; 

 oblong or lanceolate, 1.5-2.5 cm. long; flowers openly paniculate; caljn 

 mm. long; lobes lanceolate, acute; corolla campanulate, 1 



shorter than the corolla. Mountains: Colo.- 



10. P. robustum Rydb. Stem 4710 dm. high; leaflets 11-17, lance. >lau or 

 lance-oblong, acute, 1.5-2.5 cm. long; inflorescence much branched; <:. 

 ular-villous, 7-8 mm. long; lobes lanceolate; corolla rose or purpli 



high; stamens shorter than the corolla. Mountains: 



11. P. f oliosissimum A. Gray. Stems solitary or few, short-pil. .si- 1 hn nigh- 

 out, glandular above, 3-9 dm. high; leaflets 11-21 oval or lanceolate; ca 



7 mm. long, densely glandular; corolla 9-12 mm. long, funnelform-campan 



