192 



HYDROPHYLLACEAE 



Leaves divided to near the midrib ; stamens about three times as long as the corolla. 

 Plant equally sericeous throughout; segments of the leaves narrowly linear. 



27. P. sericea. 

 Plant finely pubescent, hirsute-ciUate on the petioles; segments of the leaves 

 oblong. 28. P. ciliosa. 



VI. PULCHELLAE. 



Flowers almost sessile in small dense sessile spikes ; calyx equalling the corolla, or slightly 

 shorter. 

 Leaves plnnatifld; calyx enlarging in fruit and strongly reticulate. 



29. P. flrmomarginata. 

 Leaves merely toothed or lobed ; calyx neither much accrescent nor reticulate. 

 Leaf-blades spatulate. 



Calyx-lobes subequal. 30. P. cephalotes. 



Calyx-lobes unequal, the longer twice as long as the shorter. 



31. P. minutissima. 

 Leaf-blades orbicular or rounded ovate. 32. P. Knightii. 



Flowers nediceled in peduncled racemes: calyx much shorter than the corolla. 

 Leaf-blades entire or nearly so. 



Leaf-blades orbicular or subrenlform. 

 Leaf-blades ovate, obovate, oval, or oblong. 

 Corolla about 1 cm. long; plant difFuse. 

 Corolla about 6 mm. long; plant erect. 

 Filaments sparsely pilose. 

 Filaments glabrous. 

 Leaf-blades round, sinuately toothed or crenate. 



Corolla 8-10 mm. long; leaves glandular-pubenilent. 

 Corolla 3-5 mm. long; leaves hirsutulous. 



33. P. demissa. 



34. P. pulchella. 



35. P. curvipes. 



36. P. incana. 



37. P. glechomaefoHa 



38. P. rotundifolia. 



VII. BICOLORES. 



Corolla white or pale purple, not much, if at all, exceeding the calyx. 

 Plant not glandular or scarcely so ; leaves pinnatifid. 



Corolla shorter than the calyx. 39. P. 



Corolla usually slightly exceeding the calyx. 40. P. 



Plant decidedly glandular; leaves more or less bipinnatifld. 



Calyx-lobes linear or nearly so, twice as long as the capsule. 



41. P. 

 Calyx-lobes spatulate, scarcely half longer than the capsule. 



42. P. 

 Corolla about twice as long as the calyx; throat yellow; Unib purple. 



Corolla broadly funnelform; leaves once pinnate. 43. P. 



Corolla narrowly funnelform, nearly tubular; leaves twice pinnatifid. 



44. P. 

 6. MILTITZIA A.DC. 



campestris. 

 Ivesiana. 



glandulifera. 

 affinis. 

 FreTnontii. 

 bicolor. 



1. M. foliosa. 



Leaf-blades lanceolate to oblong, obtuse, lacimate-dentate. 

 Leaf-blades obovate, spatulate or oval, coarsely round-toothed. 



Peduncles usually longer than the leaves; corolla and capsule equalling the caljTc. 



2. M. scopulina. 

 Peduncles shorter than the leaves ; corolla and capsule shorter than the calyx. 



3. M. salina. 



7. EMMENANTHE Benth. Whispering Bells. l. E. pendulaeflora. 



8. CAPNOREA Raf. 

 Corolla saucer-shaped or rotate. 



Calyx almost glabrous, except the ciUate margins; leaves not distinctly venulose. 



1. C. pumila. 

 Calyx long-vUlous at the base; leaves distinctly venulose. 2. C. nervosa. 



Corolla campanulate or fimnelform. 



Calyx-lobes oblong or lanceolate, obtuse. 



Corolla 12—15 nun. long; pubescence of the plant short. 

 Corolla 7-10 mm. long; pubescence longer on the peduncle 



3. C. Watsoniana. 

 calyx densely villous. 



4. C. incana. 



5. C. nana. 



-Calyx-lobes linear or huear-lanceolate, acute. 



9. ROMANZOFFIA Cham. 



Leaves 1.5-4.5 cm. broad. 



Leaves 5-9-lobed; capsule longer than the calyx. 1. R. sitchensis. 



Leaves 3-5-lobed; capsule not exceeding the calyx. 2. R. Leibergii 



Leaves less than 0.5 cm. broad. 3. R. minima. 



10. ERIODICTYON Benth. Mountain Balm, Yerba Santa. 



11. MARILAUNIDIUM Kuntze. 



Diffuse; corolla more than twice as long as the calyx. 

 Erect; corolla shorter than the calyx. 



12. CONANTHUS S. Wats. 



13. TRICARDIA Torr. 



1. E. angusiifolium. 



1. A/, demissum. 



2. M. angusiifolium. 



1. C. aretioides. 

 1. T. Watsoni. 



