PAPAVERACEAE. 



I6.S 



Flowers regular. 



Leaves alternate, lobed or dissected. 



Leaves opposite, entire. 

 Flowers irregular. 



Corolla 2-spurred at the base. 



Corolla 1 -spurred at the base. 



211. eschscholzia, 165. 



212. Platystigma, 165. 



213. BiKUKULLA, 165. 



214. Capnoides, 166. 



211. ESCHSCHOLZIA. 



Smooth glaucous slender annual herbs with colorless bitter 

 juice; leaves alternate, petioled, lobed or dissected; flowers 

 bright orange or yellow; sepals coherent into a narrow pointed 

 hood; petals 4; stamens numerous, with short filaments and 

 linear anthers; style short; stigma divided into 4-6 linear unequal 

 lobes; ovary linear, with 2 placentae; capsule elongated, 1-celled, 

 10-nerved, 2-valved, many-seeded. 



Eschscholzia californica Cham. California Poppy. Perennial, glabrous 

 and glaucous, the erect or decumbent branches 20-60 cm. long; leaves ter- 

 nately divided into linear acutish lobes; calyx conic; petals orange-yellow, 

 fan-shaped, 3-5 cm. broad; capsule 5-8 cm. long; rim of the receptacle 3-6 mm. 

 broad. 



In open prairies, Willamette Valley. E. californica is extremely variable 

 and numerous species have been proposed for the variant forms. The nor- 

 thern forms have been named E. coliimbiana Greene and E. douglasii (Hook. 

 & Arn.) Walp., the former with a broad rim to the receptacle, the latter with 

 a narrow rim, but this character is very variable. No species of Eschscholzia 

 is known to be native north of the Columbia River and west of the Cascade 

 Mountains, but cultivated forms commonly escape and become established 

 for a time. 



212. PLATYSTIGMA. 



Low slender annual herbs; leaves pale-green, entire, opposite 

 or whorled; flowers pale-yellow, long-peduncled; sepals 3 (rarely 

 2); petals 4-6; stamens few to many, with narrow filaments and 

 oblong or linear-oblong anthers; stigmas 3, distinct, ovate to 

 linear; ovary 2-angled, oblong or linear; capsule 1 -celled, 3-valved, 

 many-seeded. 



Platystigma oreganum (Nutt.) Benth. & Hook. Glabrous, the spreading 

 stems usually 5-20 cm. high; basal leaves spatulate to obovate, 15-20 mm. 

 long, the petioles margined; cauline spatulate to linear, sessile; flowers white, 

 on long peduncles; petals white, 2-4 mm. long; anthers shorter than the fila- 

 ment; capsule linear, usually twisted when mature. 



In open places, especially in gravelly or sandy soil. Rare in Washington 

 but common southward. 



213. BIKUKULLA. 



Erect or dift'Use glabrous perennial herbs; leaves ternately 

 compound or dissected; flowers in racemes or panicles, irregular, 

 nodding; pedicels 2-bracted; sepals 2, scale-like; petals slightly 

 united into a 2-spurred or swollen nectariferous often withering- 

 persistent corolla; stamens 6, in two sets, opposite the outer 



