146 Flora of the Palouse Region 



240. LAPPUIvA. 



Annual biennial or perennial rough-hairy herbs: flowers small, in 

 racemes or spikes: calyx 5-parted, reflexed or open in fruit: corolla 

 short-salverform or somewhat funnelform, white or blue, the throat 

 closed with prominent appendages (fornices) : nutlets attached by 

 some part of the inner angle or face to thegynobase, armed either 

 along a distinct margin or more or less over the whole back with 

 backwardfy-barbed prickles. 



L. texana vScheele. (L,. redowskiivax. cupula to. Gray.) Annual, erect, 

 loosely branched, 15-50 cm. high, hispid-pubescent throughout: leaves all 

 sessile, linear, obtuse, 1-3 cm. long: racemes becoming very loose and elon- 

 gated, leafy-bracteate: pedicels stout, shorter than the calyx: corolla very 

 small, white or blue, its tube barely as long as the calyx: nutlets convex on 

 the back, granular-roughened, the margins with a border of united prickles, 

 thus forming a shallow cup; ventral face convex, covered with whitish 

 tubercles; scar long and narrow, nearly as long as the nutlet. Along Snake 

 River. 



241. ALLOCARYA. 



Annuals or perennials: flowers small, white: calyx 5-parted, 

 erect or little spreading in fruit: corolla white, usually with appen- 

 dages (fornices) at the throat: nutlets not armed with barbed 

 prickles, attached only at the inside of the base to a slightly ele- 

 vated gynobase. 



A. hispidula Greene. Annual, much branched from the base, spreading 

 or ascending, 10-30 cm. high, sparingly hairy: leaves few, linear, obtuse, 1-3 

 cm. long: spikes slender, elongate, leafy-bracteate near the base: corolla 

 white, small: fruiting calyx 2 mm. long, hispid: nutlets ovate-oblong, 

 obliquely rough-ridged on the three faces, keeled the whole length on the 

 ventral face; scar nearly basal. In dried up ponds and similar places, com- 

 mon. 



242. CRYPTANTHK. 



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

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

 der mostly subulate gynobase. 



Nutlets smooth. 



Only one maturing. C. FLACCIDA. 



All "four usually maturing, 



Ventral groove simple. C. AFFINIS. 



Ventral groove forked at base. C. TORREYANA. 



Nutlets papillate, roughened. 



Fruiting calyx 6-IS mm. long. C. AMBIGUA. 



Fruiting calyx 4 mm. long. C. muriculata. 



