148 PAPAVERACEAE. 



1. A. platyceras hispida (Gray) Prain. Stem erect, simple or 

 rarely branching, 3-6 dm. high, hispid throughout and more or less 

 armed with rigid bristles or prickles; leaves 6-10 cm. long, the lower 

 narrowed to a winged petiole, the upper sessile; flowers white, 

 5-8 cm. broad; capsule oblong, 3 cm. long, very prickly; seeds 2 mm. 

 in diameter. 



Occasional in dry exposed slopes or dry canyon floors in all the 

 mountains. June-August. 



8. PAPAVER L. 



Annual or perennial herbs with narcotic juice milky 

 or rarely turning yellow, mostly pinnately lobed or dis- 

 sected leaves and showy flowers solitary on long pedun- 

 cles. Sepals 2. Petals 4. Stamens numerous. Ovary 

 capped by the closely sessile circular flat or somewhat 

 conical disk of the combined radiate stigmas, dehiscent 

 only under the edge of it by as many dentiform short 

 lids; placentae 4-20, mostly projecting far into the cell. 



1. P. calif ornicum Gray. Annual, erect, simple or branching, 

 3-6 dm. high, sparsely pilose-pubescent, leafy below; petals brick- 

 red with greenish spot at base, 2 cm. long or less; capsule 1 cm. 

 long or more, clavate-turbinate, 6-11-nerved. 



Frequent on shady slopes in the Santa Monica and San Gabriel 

 Mountains. March-May. 



9. BICUCULLA Adans. 



Perennial glabrous herbs, with compound and much- 

 dissected leaves and more or less irregular flowers. 

 Sepals 2, small and scale-like. Petals 4 in 2 pairs; the 

 outer pair with more or less spreading tips, spurred or 

 saccate at base; inner pair narrower, callous tipped, 

 cohering over the enclosed stigma. Stamens 6, in 2 sets 

 of 3 each; anthers of middle stamens 2-celled, the others 

 1-celled; filaments slightly united or distinct. Ovary 

 1-celled with 2 parietal several-ovuled placentae; stigma 

 2-lobed contrary to the placentae. Fruit a silique-form 

 capsule. 



1. B. chrysantha (H. & A.) Coville. Pale and glaucous; stem 

 erect, 6-15 dm. high; leaves twice pinnate, and the more or less 

 confluent divisions pinnately 3-5-cleft or incised; inflorescence 

 compound thyrsoid-paniculate, many-flowered; flowers yellow, erect, 

 subterete, 1-15 dm. long, deciduous; outer petals soon spreading or 

 recurving to below the middle, slightly gibbous at base, but little 

 larger than the inner; these dorsally crested with a long and wide 

 undulate or crisped wing. {Dicentra chrysantha H. & A.) 



Frequent in the chaparral belt throughout our range. May- 

 July. 



