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. scricea. 

 Plant finely pubescent, liirsute-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 pinnatifld; calyx enlarging in fruit and strongly reticulate. 



29. P. firmomarginata. 

 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 roimded ovate. • 32. P. Knightii. 



Flowers pediceled in peduncled racemes; calyx much shorter than the corolla. 

 Leaf-blades entire or nearly so. 



Leaf-blades orbicular or subreniform. 33. P. demissa. 



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



Corolla about 1 cm. long; plant diffuse. 34. P. pulchella. 



Corolla about 6 mm. long; plant erect. 



Filaments sparsely pilose. 35. P. curripes. 



Filaments glabrous. 36. P. incana. 



Leaf-blades round, sinuately toothed or crenate. 



Corolla 8-10 mm. long; leaves glandular-puberulent. 37. P. glcchomaefoHa 



Corolla 3-5 mm. long; leaves hirsutulous. 38. P. rotundifolia. 



VII. BICOLORES. 



Corolla wliite or pale purple, not much, if at all, e.xceeding the calyx. 

 Plant not glandular or scarcely so; leaves pinnatifld. 



Corolla shorter than the calyx. 39. P. cainpestris. 



Corolla usually shghtly exceeding the calyx. 40. P. Ivesiana. 



Plant decidedly glandular; leaves more or less bipinnatifld. 



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



41. P. glandulifera. 

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



42. P. affinis. 

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



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



Corolla narrowly funnelform, nearly tubular; leaves twice pinnatifld. 



44. P. bicolor. 



6. MILTITZIA A.DC. 



Leaf-blades lanceolate to oblong, obtuse, laciniate-dentate. 1. A/, foliosa. 



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



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



2. M. scopulina. 

 Peduncles shorter than the leaves; corolla and capsule shorter than the calj-x. 



3. M. salina. 



7. EMMENANTHE Benth. Whispering Bells. i. E. pejidulaeflora. 



8. CAPNOREA Raf. 

 Corolla saucer-shape<l or rotate. 



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



1. C. pumila. 

 Calyx long-villoiis at the base; leavas distinctly venulose. 2. C. nervosa. 



Corolla" campamdate or funnelform. 



Calvx-lobes oblong or lanceolate, obtuse. 



Corolla 12-15 mm. long; pubescence of the plant short. 3. C. Walsoninna. 



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



4. C incana. 

 Calyx-lobes linear or linear-lanceolate, acute. 5. C. 7iana. 



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. Leibcrgii. 



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



10. ERIODICTYON Benth. Mountain Balm, Yerba Santa. 



1. E. angustifolium. 



11. MARILAUNIDIUM Kuntze. 



Diffuse; corolla more than twice as long as the calyx. 1. M. demixsum. 



Erect; coroUa shorter than the calyx. 2. M. anguslifolium. 



12. CONANTHUS S. Wats. l. C. aretioides. 



13. TRICARDIA Torr. l. T. Watsoni. 



