330 SCROPHULARIACEAE. 



Orthocarpus imbricatus Benth. Puberulent; stems slender, erect, 10-30 

 cm. high; leaves linear-lanceolate, attenuate, puberulent; bracts somewhat 

 papery, oval, net- veined, purplish at tip; spike dense; corolla purple; galea 

 triangular, straight, as long as the lip. 



Olympic Mountains, Elmer, and south to the mountains of northern Cali- 

 fornia, rare. 



Orthocarpus bracteosus Benth. Hirsute pubescent; stems erect, 10-30 

 cm. high; leaves all deeply cleft into 3 acute lanceolate lobes, the lateral ones 

 spreading; inflorescence a dense spike; bracts broader than the leaves, 3-5- 

 lobed, greenish; calyx-lobes subulate; corolla purple, 12-14 mm. long, the 

 galea short and indexed. 



Open prairies, Vancouver Island to California. O. strictus Benth. is prob- 

 ably identical and if so has priority. 



Orthocarpus pusillus Benth. Pubescent; plants low, usually purplish, 

 5-10 cm. high; leaves pinnately dissected into thread-like divisions; bracts 

 similar; flowers scattered, shorter than the bracts; corolla purplish, 4-5 mm. 

 long. 



Common in dry gravelly soil. 



Orthocarpus erianthus Benth. Minutely pubescent; stems slender, 

 strictly erect, 10-20 cm. high, simple or branched; leaves pinnately parted 

 above the broader entire base into narrow segments; spike narrow; bracts 

 similar to the leaves but small, the upper ones not longer than the calyx; 

 corolla 2-2.5 cm. long, yellow, the narrow falcate galea purple-tipped. 



Washington, where perhaps introduced, to Oregon and California. 



Orthocarpus hispidus Benth. Annual, slender, erect, simple or with few 

 erect branches, rough-hairy throughout, 10-40 cm. high; leaves linear or 

 lanceolate, attenuate, entire or pinnately cleft into 3-5 linear lobes, 2-6 cm. 

 long; spikes dense, narrow; bracts like the leaves, but shorter and broader; 

 calyx-teeth subulate, shorter than the corolla-tube; corolla white, slender, 

 12-14 mm. long; lip with 3 sac-like swellings; galea straight, pointed. 



Moist places in open ground, Willamette Valley. 



Family 91. OROBANCHACEAE. BROOMRAPE FAMILY. 

 Root-parasitic herbs, destitute of foliage and green color, 

 yellowish or brownish throughout; leaves reduced to alternate 

 scales; flowers solitary, loosely clustered or spicate; calyx 4- or 5- 

 toothed or parted; corolla gamopetalous, tubular, more or less 

 2-lipped, hypogynous; stamens 4, didynamous, epipetalous; style 

 long; stigma large; ovary 1 -celled, with 2 or 4 parietal placentae; 

 capsule 1-celled, 2-valved; seeds very numerous, minute. 



Anther cells not separated, their bases rounded. 460. BOSCHNIAKIA, 330. 

 Anther cells separated below, their bases mucronate. 



Bracts on the calyx or elongated peduncles 

 none. 461. THALESIA, 331. 



Bracts on the calyx or short pedicel one or two. 462. OROBANCHE, 331. 



460. BOSCHNIAKIA. 



Stout fleshy reddish simple-stemmed parasitic herbs; flowers 

 sessile or subsessile in a dense scaly-bracted spike; bractlets 



