PHLOX FAMILY 695 



lanceolate, bristle-tipped; corolla white, or rarely pale pink, 2-3 cm. long, its 

 lobes oval or obovate, obtuse. Callislcris leucantha Greene. Open valleys: Colo. 

 Mont. Je-Au. 



25. G. longiflora (Torr.) G. Don. Stem erect, glabrous, branched above, 

 2-5 dm. high; leaves deeply pinnatifid, with few filiform divisions, or often entire 

 and filiform; calyx glabrous; teeth subulate, much shorter than the tube; corolla 

 white; lobes about 1 cm. long. Sandy plains: Neb. — Tex. — Ariz. — Utah. Plain 

 — Suhmonl. Je-Au. 



26. G. laxiflora (Coult.) Osterhout. Stem glabrous or glandular-puberu- 

 lent above, about 3 dm. high; leaves pinnatifid, with filiform divisions, the upper 

 few-lobed or entire; calyx-teeth subulate; corolla white or tinged with blue; 

 lobes 4-5 mm. long. Giiia Macombii laxiflora Coult. Plains and table lands: 

 Colo.— Tex.— N.M.— Utah. Plain— S ubmont. Je-S. 



27. G. polyantha Rydb. Stems several, 3-4 dm. high, simple up to the 

 inflorescence, glandular-puberulent; leaves 3-4 cm. long, pinnatifid; lobes linear- 

 filiform, pungent-]5ointed; flowers numerous in a narrow thyrsus; calyx about 5 

 mm. long; lobes broadly ovate-triangular, abruptly cuspidate-pungent; corolla 

 white, about 1 cm. long; lobes about 5 mm. long, lance-oblong, obtusish. G. 

 exserla A. Nels. Dry places: Colo. Submont. jl. 



28. G. calcarea M. E. Jones. Stem erect, usually branched, glandular- 

 pilose, 0..5-5 dm. high; leaves pinnatifid, glandular; flower-s paniculate; calyx 

 densely glandular; teeth triangular-lanceolate, acuminate; corolla-tube j'ellow- 

 ish, twice as long as the calyx; lobes violet, rounded-ovate. G. jdnnatifida Nutt., 

 not Moc. & Sess. G. viscida Woot. & Standi. Sandy soil: Neb. — N.M. — Wyo. 

 Plain — Mont. Je-S. 



29. G. MacVickerae AL E. Jones. Stem erect, glabrous, branched, 3-4.5 

 dm. high; basal leaves rosulate, as well as the lower stem-leaves pinnatifid, with 

 obovate-mucronate divisions; leaves of the upper stem and branches linear, 

 entire; calyx glandular-puberulent; teeth triangular, acute; corolla 12-14 mm. 

 long; lobes oval. Sandy soil: Utah. Submont. My. 



30. G. scopulorum M. E. Jones. Stem 1-2 dm. high, glandular-pubescent; 

 lower leaves oblanceolate in outline, pinnatifid, 1-2.5 cm. long, glandular-pubes- 

 cent; lobes obovate or oblong, aristate-tipped, the upper stem-leaves compara- 

 tively broader and shorter, the uppermost much reduced and few-toothed ; calyx- 

 tube about 2 mm. long, glandular; teeth subulate, 1 mm. long; corolla 10-14 mm. 

 long, purple, with a yellow throat. Dry regions: s Utah — Nev. — s Calif. L. 

 Son. Ap-My. 



31. G. hutchinsifolia Rydb. Stem 1-2.5 dm. high, glandular-pubescent; 

 leaves mostly crowded near the base, pinnatifid, with oblong, more or less lobed 

 divisions, glandular-pubescent; leaves of the inflorescence often linear; calyx-tube 

 glandular, 1.5-2 mm. long; lobes subulate; corolla 10-14 mm. long; lobes broadly 

 ovate, acute. G. arenaria rubella Brand. Dry regions: s L^tah — Ariz. L. Son. 

 Ap-My. 



32. G. sinuata Benth. Stem 1-3 dm. high, usually branched, glabrate or 

 more or less glandular-puberulent; leaves oblanceolate in outline, pinnatifid, 

 somewhat floccose when young, in age glabrate; lobes oblong to ovate, usually 

 short; leaves of the branches lanceolate, entire or toothed; calyx-tube 2 mm. 

 long; teeth subulate, about 1 mm. long; corolla 8-10 mm. long, purple, with 

 yellowish tube. Sandy soil: N.M. — Colo. — Nev. — Calif. Son. — Submont. Ap-Jl. 



33. G. straminea Rydb. Stem 2-3 dm. high, glabrous, or rarely shghtly 

 glandular-j)uberulent above, straw-colored; basal leaves glabrous, firm, 1-2 cm. 

 long, pinnately lobed, with lanceolate cuspidate-tipped lobes; stem-leaves sessile 

 and partly clasping, lanceolate, sharply dentate with cuspidate teeth, or entire; 

 calyx-tube 2 mm. long; teeth subulate, 1 mm. long; corolla 7-8 mm. long. Dry 

 regions: s Utah. L. Son. 



34. G. inconspicua (Smith) Dougl. Stem 2-4 dm. high, glandular-puberu- 

 lent; leaves mostly near the base, pinnatifid, more or less crisp-pubescent or 

 glabrate; lobes mostly oblong, cuspidate; calyx-tube about 2 mm. long, glabrous 



