BORAGINACEAE. 209 



Amsinckia intermedia Fisch. & Mey. Tar -weed. Erect, usually simple, 

 30-60 cm. high, the bristly hairs mostly white; leaves lanceolate or linear, 

 5-12 cm. long, the upper somewhat broader at base; raceme becoming much 

 elongated in fruit; calyx-lobes linear, acute, very bristly in fruit, 6-8 mm. long; 

 corolla yellow, 5-6 mm. long; nutlets dark-colored, the back convex and some- 

 what keeled, obliquely ridged and roughened with tubercles. A troublesome 

 weed, in wheat fields. 



Amsinckia lycopsoides Lehm. At first erect but soon producing weak 

 ascending or decumbent branches from near the base, 30-60 cm. long; whole 

 plant sparsely covered with white bristles, those on the leaves becoming pus- 

 tulate at base; leaves green, lanceolate, acutish, sessile, entire or undulate, 

 the largest 3-5 cm. long; inflorescence 15-30 cm. long, most of the flowers 

 subtended by a bract; calyx lobes lanceolate, often unequal, sparsely hispid, 

 in fruit becoming 4-5 mm. long; corolla orange-yellow, 5-6 mm. long. This 

 species is most abundant near the seashore but readily becomes a weed. 

 Specimens collected at Spokane were probably introduced from the coast 

 region. 



306. OREOCARYA. 



Stout coarse canescent or pilose hispid biennials and perennials; 

 leaves radical and cauline; flowers white (in ours), in crowded 

 paniculate or thyrsoid clusters; pedicels filiform, persistent; 

 calyx 5-parted, spreading in fruit; corolla salverform, 5-lobed, 

 with swellings in the throat; nutlets attached laterally to the 

 pyramidal receptacle. 



Oreocarya sericea (Gray) Greene. Perennial, canescent throughout with 

 a dense fine pubescence interspersed with bristly hairs; stems stout, 10-20 

 cm. high; leaves spatulate or oblanceolate, obtuse, the cauline sessile, the basal 

 narrowed into a broad petiole; inflorescence a narrow thyrsus; calyx bristly 

 hirsute; corolla white, the tube not longer than the calyx and as long as its 

 lobes; nutlets oblong-ovate, somewhat roughened on the back. Common 

 about Spokane in gravelly soil. 



307. CRYPTANTHE. 



Very similar to Allocarya, but the nutlets attached for one- 

 third or more of their length by the ventral face or angle to a 

 slender mostly subulate gynobase. 



Surface of the nutlet rough. 



Calyx teeth twice as long as the acuminate nutlets. C. ambigua. 



Calyx teeth little longer than the acute nutlets. C. muriculata. 



Surface of the nutlets smooth and shining. 



Nutlets solitary, rarely 2, narrow, attenuate-acuminate. C. flaccida. 

 Nutlets 4, ovate, acute or short-acuminate. 



Ventral groove simple to the base. C. affinis. 



Ventral groove forked at the base. C. calycosa. 



Cryptanthe ambigua (Gray) Greene. Slender, 15-30 cm. high, short-hispid; 

 leaves oblong-linear, 1-2 cm. long; spike nearly bractless, rather few-flowered; 

 fruiting calyx 6-8 mm. long, with rather small bristles, the lobes linear, twice 

 as long as the fruit; nutlets all four maturing, ovate, acute, rough, with papillae 

 of two sizes; ventral groove forked at the very base. Pine woods, Thatuna 

 Hills, Idaho. 



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