478 BORAG1NACE.E PECTOCARYA 



CYNOGLOSSUM 



P. penicillata A. DC. Prodr. x, 120. Strigose-pubescent with minute 

 white hairs : very diffuse or depressed ; branches almost filiform, 2-6 ^nches 

 long: leaves linear or filiform, an inch or less long: calyx-lobes linear, min- 

 utely hispid : nutlets geminately divergent, the oblong body surrounded by 

 a merely undulate or pandurate wing that is incurved in age, its rounded 

 apex thickly and the sides rarely or not at all beset with slender uncinate 

 bristles : cotyledons oblong- ovate. Dry plains and hillsides Brit. Columbia 

 to California and western Nevada. 



P. setosa Gray Proc. Am, Acad. xii, 81. Hispid as well as minutely 

 strigose-pubescent : stem rather stout, 2-6 inches high, paniculately bran- 

 ched : leaves linear : calyx-lobes linear, armed with stout white straight 

 and divergent bristles: nutlets obovate, equally divergent, bordered by a 

 broad thin scarious wing, the faces and margins beset with slender uncin- 

 ate- tipped bristles : cotyledons broadly obovate. Eastern Washington to 

 southeastern California. 



P. pusilla Gray 1. c. Strigulose-canescent : stem slender, diffusely 

 branched from the base, 4-8 inches high: lower leaves opposite, linear - 

 spatulate, 4-8 lines long, upper ones alternate and reduced to small lanceo- 

 late bracts. 1-2 lines long: calyx-lobes lanceolate, longer than the nutlets, 

 beset with small uncinate-tipped bristles : nutlets equally divergent, cune- 

 ate-obovate, wingless and with a carinate midnerve on the upper face, the 

 acute margins beset with a row of slender uncinate-tipped bristles : cotyle- 

 dons broadly obovate. Eastern Washington to California. 



* * Nutlets thicker, with ventral or introrse-basal attachment. 



- Corolla short, with, fornicate appendages in the throat. Calyx 

 spreading or reflexed. Nutlets glochidiately armed. 



4 CYNOGLOSSUM Tourn. L. Gen. n. 183. 



Coarse herbs with broad leaves and rather small flowers in 

 panicled mostly bractless racemes. Calyx 5-parted, persistent, 

 open in fruit. Corolla short salverform or funnelform, with con- 

 spicuous arching crests at the throat. Stamens and style includ- 

 ed. Nutlets 4, turgid, wingless, clothed all over the back with 

 short and stout glochidiate- tipped prickles, equally divergent, 

 horizontal or obliquely ascending -on a depressed or pyramidal 

 gynobase, at maturity separating and carrying away an exterior 

 portion of the indurated style from below upward, by which they 

 are for a time suspended. 



C. grande Dougl. Hook. Fl. ii, 82. Soft-villous, hardly hirsute be- 

 low, becoming glabrate in age : stem stout, from a thick perennial root, 

 1-3 feet high : lower leaves ovate or subcordate-oblong and acute or acumin- 

 ate, the blade 4-8 inches long, on margined petioles of about the same 

 length, the upper smaller, from ovate to lanceolate, abruptly contracted 

 into a short winged petiole : corolla bright blue, its tube slightly exceeding 

 the ovate calyx-lobes and hardly longer than the limb : style slender, thick- 

 ened toward the base : nutlets ovoid, 4 lines in diameter, very rough-mu- 

 ricate and covered with short glochidiate-tipped spines. In open woods, 

 Brit. Columbia to California. 



C. occidentale Gray Proc. Am, Acad. x. 58. Hirsute-pubescent or 

 in age almost hispid: stems rather stout, 10-18 inches high, from a thick 

 perennial root : lower leaves spatulate, tapering gradually into winged 

 petioles ; the upper from lanceolate to ovate, sessile or partly clasping : 



