Pentstemon. 



SCROPHULARIACE^. 259 



bright rose-color. Syst. Nat. & Syst. Veg. ; Schk. Handb. t. 172 ; Bot. Reg. t. 175. C. 

 foliis ovato-lanceolatis, &c., Mill. Ic. t. 93. C, purpurea, Mill. Diet. C. ylabra, var. purpurea, 

 Michx., Pursh, &c. .C. glabra, var.' lanceolata, Nutt. Gen. ii. 51. C. latifolin, Muhl. Cat., ex 

 Ell. Sk. ii. 127. Damp or wet shady grounds, Illinois and Virginia to Florida. Varies 

 between the preceding and following. 



C. Lyoni, Pursh. About 2 feet high : leaves ovate or subcordate, acuminate (4 to 7 

 inches long), thin, evenly serrate, on rather slender naked petioles: bracts minutely cilio- 

 late : corolla bright rose-purple. Fl. ii. 737 ; Don, Brit. Fl. Gard. t. 293. C. major, Sims, 

 Bot. Mag. t. 1084. Wet ground, mountains of N. Carolina and Tennessee to Georgia. 



2. NOTIIOCHELONE. Flowers pedicellate, in a loose open terminal thyrsus : 

 bracts and sepals lanceolate, acuminate : no bractlets under the calyx : corolla 

 (violet-purple) with widely open orifice, a very short 2-cleft and not at all forni- 

 cate upper lip, and a 3-cleft spreading lower one ; the throat and filaments gla- 

 brous : upper part of the filiform sterile filament hirsute. Accords with Pentste- 

 mon, except in the winged seeds. 



C. nemorosa, Dougl. A foot or two high : herbage of rank somewhat unpleasant odor : 

 leaves ovate and ovate-lanceolate, acute, acutely dentate, 2 or 3 inches long; the cauline 

 sessile or almost so by a truncate or subcordate base : peduncles 3-5-flowered, as long as 

 the pedicels: corolla fully an inch long. Lindl. Bot. Eeg. t,1211; Benth. in DC. I.e. 

 Pentstemon nemorosus, Trauttv. in Mem. Acacl. Petrop. 1841, 250. Woods along mountain 

 streamlets, Washington Terr, to the northern borders of California, Newberry, Greene. 



11. PENTSTEMON, Mitchell. BEARD-TONGUE. (ris'vTE, five, 

 stamen, all five stamens being conspicuously present, the fifth as a sterile filament, 

 which in rare instances, in several species, has been found to be antheriferous.) - 

 North American (a few Mexican and one N. E. Asian) perennials, mostly herba- 

 ceous, some suffruticose ; usually with simple stems or branched from the base ; 

 the leaves opposite, rarely verticillate or very rarely the upper alternate ; inflo- 

 rescence from thyrsiform to almost simply racemose ; and the. flowers mostly 

 handsome, in summer. Nov. Gen. in Act. Phys. Med. Nat. Cur. xiii. (1748) 

 36 ; Soland. in Ait. Kew. ii. 360 ; Benth. in DC. Prodr. x. 320, 593 ; Gray, Proc. 

 Am. Acad. vi. 56, & Bot. Calif, i. 556. Pentastemon, Trauttv. in Mem. Acad. 

 Petrop. 1841. 



1. EUPENTSTEMON, Gray. Anther-cells soon divaricate or divergent, united 

 and often confluent at the apex, dehiscent for their whole length or nearly. 



* (ERIANTH^KA.) Anthers densely comose with very long wool, in the manner of Chelone, pel- 

 tately explanate in age: low and suffruticose, with coriaceous leaves. 



P. Menziesii, Hook. A span or less to a foot high, woody at base : leaves commonly 

 ovate, obovate, or oblong, a quarter to an inch long, rigidly serrulate or some entire, gla- 

 brous or when young pubescent ; the lower short-petioled : inflorescence mostly glandular 

 or viscid-pubescent, racemose ; the pedicels almost all 1-flowered, usually 1-2-bracteolate : 

 sepals ovate-lanceolate or narrower and attenuate-acuminate : corolla (violet-blue to pink- 

 purple) an inch or more long, tubular-funnelform and moderately bilabiate, the upper lip 

 deeply 2- and lower 3-cleft : sterile filament short and slender, hairy at apex or nearly 

 naked. Fl. ii. 98; Gray, Proc. Am. Acad. vi. 56 (var. Lcwisii) & Bot. Calif, i. 55(3. 

 Gerard! a fruticosa, Pursh, Fl. ii. 423, t. 18. Pentstemon Lewisii, Benth. in DC. Prodr. x. 321. 

 On rocks and mountain tops, Brit. Columbia through the higher Sierra Nevada of 

 California, and Rocky Mountains of Idaho and Wyoming. Corolla at the north and on 

 Mt. Shasta, &c., bright violet or bluish. Passes into 



Var. Newb^rryi, Gray, a form with rose-purple or pink corolla. P. Newberryi, 

 Gray in Pacif. R. Rep. vi. 82, t. 14. P. Menziesii, var. Robinsoni, Masters in Gard. Chron. 

 1872, 069, fig. 227. Sierra Nevada, California, the only form southward. 



