WATERLEAF FAMILY 707 



rarely somewhat repand, 1-2 cm. broad, glandular-puberulent; calyx-lobes linear, 

 glandular-puberulent ; corolla white, 4-6 mm. long. P. nudicaulis Eastw. Arid 

 places: N.M. s Utah -Nev. Son. 



34. P. pulchella A. Gray. Stem diffusely branched, glandular-puberulent, 

 5-20 cm. high; leaves petioled, puberulent; blades 1-3 cm. long, ovate, oval, or 

 obovate, obtuse, entire or somewhat repand; pedicels shorter than the calyx; 

 calyx-lobes linear-spatulate, 4-5 mm. long; corolla deep purple, with a yellowish 

 base, about 1 cm. long. Gypsum hills: s Utah. Son. 



35. P. curvipes Torr. Low annual; stem pubescent, branched at the base; 

 leaves lanceolate or oblong, entire; sepals oblanceolate, 6-7 mm. long, hirsute; 

 corolla light blue or white; stamens sparsely bearded. Arid regions: Calif. s 

 Utah Ariz. Son. 



36. P. incana A. Brand. Stem branched, with erect branches, 8-15 cm. high, 

 glandular-pilose; leaves petioled, densely pilose; blades oval or oblong, entire, 

 obtuse, 0.5-2 cm. long; sepals linear or linear-spatulate, 3-4 mm. long; corolla 

 white, about 4 mm. long. Dry places, sage plains, &c. : Utah. Son. My. 



37. P. glechomaefolia A. Gray. Stem 1-3 dm. high, paniculately branched, 

 glandular-puberulent; leaves petioled, glandular-puberulent; blades orbicular 

 or cordate-orbicular, 1.5-3 cm. broad, coarsely crenate; calyx-lobes spatulate or 

 oblong, 4-5 mm. long; corolla lilac-purple. Arid regions: Ariz. s Utah. L. 

 Son. My-Je. 



38. P. rotundifolia Torr. Stem diffusely branched, 0.5-2 dm. long, glandu- 

 lar-hirsute; leaves petioled, densely hirsutulous; blades orbicular, with a cordate 

 base, crenate, 0.5-2 cm. broad; sepals linear-spatulate, 2-3 mm. long; corolla 

 white. Arid regions: s Utah Ariz. s Calif. L. Son. 



39. P. campestris A. Nels. Stem minutely puberulent, branched from the 

 base, 8-12 cm. high; leaves petioled, oblong in outline, 1.5-3 cm. long, deeply 

 pinnatifid, with oblong obtuse divisions; sepals oblong or linear-spatulate, hir- 

 sute-ciliate, 3-4 mm. long; corolla 2-3 mm. long, white, short-cylindric. Sandy 

 sage-plains and rocky hills: Wyo. My-Je. 



40. P. Ivesiana Torr. Stem diffusely branched, 5-15 cm. long; leaves 

 petioled, pinnatifid, finely pilose, 1-4 cm. long; divisions oblong or linear, entire 

 or f ew-toothed ; calyx-lobes linear-spatulate, 2-3 mm. long; corolla white, 3-4 

 mm. long. Arid places: Utah Ariz. Calif. Wash. Son. Submont. Ap-Je. 



41. P. glandulifera Piper. Stem branched from the base, 5-30 cm. high, 

 glandular-hispid; leaves mostly bipinnatifid, with oblong lobes; calyx-lobes spatu- 

 late or oblanceolate, hispid-glandular, 5-6 mm. long; corolla pale violet or yellow- 

 ish, with purplish limb, about 6 mm. long, barely exceeding the calyx. P. luteo- 

 purpurea A. Nels. Sage plains and dry places : Wash. Ida. Ore. Son. My-Je. 



42. P. afflnis A. Gray. Stem branched from the base, 1-2 dm. high, glandu- 

 lar-hispid; leaves pinnatifid; divisions oblong, more or less lobed or toothed, hir- 

 sute and glandular-pubescent; calyx hirsute and glandular; corolla light blue or 

 yellowish, about equalling the calyx. Arid regions: L. Calif. s Calif. Utah. 

 'Son. My-Jl. 



43. P. Fremontii Torr. Stem 1-3 dm. high, branched at the base, puberu- 

 lent; leaves pinnatifid, with 7-15 oblong or obovate, entire or rarely 2-3-lobed 

 divisions; calyx-lobes spatulate, 4 mm. long; corolla open-funnelform, 8-12 mm. 

 long; capsule oblong; seeds 20-30, strongly corrugated. Dry regions: s Utah 

 Ariz. Calif. Son. Submont. Mr-Je. 



44. P. bicolor Torr. Stem diffuse, 1-2 dm. high, puberulent; leaves pinna- 

 tifid and the divisions again parted into linear or oblong divisions; calyx-lobes 

 linear or linear-spatulate, 3 mm. long; corolla narrowly funnelform, fully 1 cm. 

 long. Hills and desert slopes: Utah Calif. Son. Submont. My-Jl. 



6. MILTITZIA A.DC. 



Diffuse or depressed annuals. Leaves alternate, pinnatifid. Flowers per- 

 fect, regular or nearly so, in more or less leafy-bracted scorpioid racemes. Calyx 



