DICOTYLEDONOUS PLANTS 149 



b. P. heterophyllus Lindl. Stems many from a woody base, 

 pale-green. Leaves lance-shaped or linear. Corolla rose-purple, an 

 inch long. Anthers shaped like a horseshoe, with the base of each 

 cell remaining closed, and forming a sac, dilate on the opened' 

 edges. Sterile filament smooth. Throughout California in dry 

 places. 



c. P. centranthifo'lius Benth. Light bluish green and perfectly 

 smooth. Upper leaves heart-shaped, clasping. Corolla fully an inch 



long, bright red, tubular, hardly bilabiate, with the lobes spreading but 

 little. Sterile filament slender and smooth. Most common in southern 

 California. 



d. P. gla'ber Pursh. Stems 1-2 ft. high, smooth, glaucous. 

 Upper leaves ovate-lanceolate, clasping the stem. Flowers in a 

 long, close panicle. Sepals ovate, pointed. Corolla violet, with 

 swelling throat, 1-1^ in. long. Sterile filament with a few hairs at 

 top. Anthers opening from the base of each cell to the apex, smooth 

 or slightly hairy. Along streams. Summer. 



e. P. confer'tus var. caeruleo-purpureus Gray. Stems slender, erect, 

 smooth, except for the viscid pubescence about the flowers. Leaves 

 linear to lanceolate. Flowers rather small, in 2-5 whorls, 1 in. or 

 more apart. Sepals with papery, fringed margins and pointed tips. 

 Corolla purplish blue, 2-lipped, the lower lip bearded. Anthers 

 opening from base to apex, the two valves spreading out fiat, after the 

 pollen has been discharged. Sterile filament bearded. In the moun- 

 tains. Summer. 



V. CASTILLE'JA, Indian Paint-brush 



Perennial herbs generally with several stems from woody 

 roots. Leaves sessile. Flowers in simple spikes, with the 

 bracts large and colored red, white, or yellowish. Calyx colored 

 like the bracts, tubular, more or less cleft either in front or 

 behind or on both sides. Corolla tubular, with a long-pointed 

 upper lip, lower lip very small, 3-toothed, with 3 folds or 

 small sacs below the short teeth (the tube is usually enclosed 

 in the calyx). Stamens 4-> enclosed in the upper lip' Style 

 long, with stigma cap-shaped or 2-lobed. 



a. C. affi'nis Hook & Arn. Stems often tall, branched from the 

 base. Leaves simple, linear-lanceolate, entire. Flowers somewhat 

 distant below but crowded above, curved. Upper leaves, bracts, and 

 calyx more or less colored red. Corolla yellowish or reddish, an inch 

 or more long, curved, surpassing the red calyx, the lower lip very 

 short, Middle to southern California, 



