160 Papaveraceae 



showy flowers. Sepals 3, with a broad membranaceous 

 dorsal wing. Petals 6. Stamens numerous, with fili- 

 form filaments somewhat thickened below, and oblong 

 anthers. Ovary oblong, densely setose, more or less 

 completely several-celled by the intrusion of the many- 

 ovuled placentae ; valves 7-12, opening from the summit 

 downward. Seeds finely tuberculate. 



1. R. Coulter! Harv. Herbaceous stem 1-2.5 m. high, from a 

 soft woody base, branching above, glabrous glaucescent ; leaves 

 of firm texture, pinnately parted or divided, petioled, 6-12 cm. 

 long ; divisions 3-9, cuneate-oblong or lanceolate, dentate, the ter- 

 minal 3-cleft, margins and rachis often sparsely ciliolate-spinulose ; 

 flowers terminating the branches; sepals smooth, petals delicate, 

 4-6 cm. long. 



Occasional in canyons. Santa Ana Mountains; Puente Hills. It also 

 occurs in Ventura County. 



2. R. trichocalyx Eastwood. Closely resembling the last in 

 habit, leaves thinner, divisions narrower ; sepals setose. 



Occasional in the canyons of San Diego County, also in Santa Barbara 

 and Ventura Counties. To be expected within our range. 



4. DENDROMECON Benth. BUSH POPPY. 



Smooth branching shrubs with alternate vertical thick 

 rigid entire or ciliolate-denticulate leaves, and showy 

 yellow flowers. Sepals 2. Petals 4. Stamens numer- 

 ous, with short filiform filaments and linear anthers. 

 Ovary linear, 1-celled and with 2 nerve-like placentae, 

 elastically 2-valved from the base upward ; valves striate- 

 costate. Seeds oval or globose, finely pitted, carunculate 

 at the hilium. 



1. D. rigidum Benth. Shrub 1-3 m. high, with many slender 

 branches and light-colored bark; leaves pale or glaucescent, 

 lanceolate and cuspidate-acuminate, varying to oblong and obtuse 

 with rigid mucro, entire or rarely ciliolate-denticulate, reticulate- 

 veiny with strong midrib, short-petioled, 2-6 cm. long; flowers 

 bright yellow, 2-4 cm. broad; capsule arcuate, 4-6 cm. long. 



Frequent in the chaparral belt. Flowering nearly throughout the year. 



