262 SCROPHULARIACE.E. Pentstemon. 



to 8 lines), the lobes of the lower very narrow. — Bot. Calif, i. 622. — S. E. California ; on 

 ]\It. Finos, Kern Co. at 7,000 feet, Rothrock. San Bernardino Co., Parry & Lenunon. 



Var. WisLizEXi, Gray, Proc. Am. Acad. vi. 59 (P. coccineits, Engelm. in Mem. Wisliz. 

 107), known only from Chihualiua, Me,\ico, is between P. barbatus and P. iniberbis, having 

 nearly the corolla of the latter, with tlie early divaricate anthers of the former. 

 -1— -)— Corolla obscurely bilabiate and the lobes hardly spreading : peduncles and pedicels short. 

 P. Eatoni, Gray. A foot or two high, hardly glaucescent : leaves from lanceolate to 

 ovate ; the npper partly clasping : thyrsus virgate and strict, simple ; the peduncles very 

 short, 1-o-flowered, and pedicels seldom much longer than the ovate-lanceolate sepals : 

 corolla an inch long, briglit carmine-red, tubular, hardly enlarged at the naked throat; its 

 broadly oval lobes (2 lines long) all nearly alike except that the two of the upper lip 

 are united higher: anther-cells usually (but not always) early divergent or divaricate, 

 dehiscent for only three-fourths their length : sterile filament sometimes minutely bearded 

 at the apex. — Froc. Am. Acad. viii. 39.5, & Bot. Calif, i. 5G0, but flowers in Wallace's 

 collection, mistakenly referred to it, are of P. Clevelandl. P. rentranthifoUus, AVatson, 

 Bot. King, 219, not Benth. — Dry banks and canons, Wahsatch Mountains, Utah, to S. 

 Nevada and Arizona. Intermediate in aspect between P. bar()iitus and P. centmnlhifoUus. 

 ***** (Speciosi.) Anthers with the diverging or divaricate and distinct cells dehiscent 

 from base nearly or quite to, but not confluently through, the apex, not peltately explanate after 

 dehiscence, either glabrous, hirsute, or rarely long-pilose : herbs with simple stems and closely 

 sessile mostly very glabrous (rarely puberulent) entire cauline leaves: inflorescence never glan- 

 dular-pubescent or viscid : flowers showy : corolla blue or violet, vcntricose-ampliate above ; the 

 lobes of the moderately or slightly bilabiate liml) roundish and equally spreading. 



-I— Corolla two-thirds to three-fourths inch long, funnclibrm, little ventricose. 

 P. Fremonti, Torr. & Gray, A span or more high, minutely and densely pruinose- 

 pubescent : cauline leaves lanceolate or the lowest (like the radical) spatulate : thyrsus 

 spiciform, virgate, rather densely flowered : peduncles and pedicels very short : sepals 

 oblong-ovate, acute, with irregular scarious margins : corolla very obscurely bilabiate ; the 

 lobes 2 lines long: anthers liirsute : sterile filament with dilated bearded apex. — Froc. 

 Am. Acad. vi. GO. — Utah, "on the Uinta plains," Fiemont. 



Var. subglaber. A span to a foot high, merely puberulent below, glabrous above : 

 upper leaves oblong-lanceolate: sepals conspicuously acuminate. — Idalio (in mountains 

 near Fort Hall, Burke), &c. 



-1^ -f— Corolla an inch to an inch and a half in length, ventricosc-ampliate above. 

 P. strictus, Benth. Glabrous, or minutely pruinose, more or less glaucous : stem slen- 

 der, virgate, 6 to 20 inches high : radical leaves from oval to spatulate ; cauline narrowly 

 lanceolate or linear ; floral reduced to small subulate bracts of the elongated narrow and 

 loose thyrsus: peduncles and pedicels commonly slender: sepals ovate or oval, obtuse, not 

 over 2 lines long, barely half the lengtli of the narrow proper tube of the violet-purple or 

 blue (about inch long) corolla; the throat of which is strongly ampliate: anthers either 

 thickly or sparsely como.se with very long flexuous hairs : sterile filament naked or with 

 some similar slender hairs. — DC Prodr. x. 321. P. comarrhcnus, Gray, Froc. Am. Acad, 

 xii. 81. — Rocky Mountains of W. Wyoming to those of S. W. Utah. The original speci- 

 men (Fremont) is strict, with the inflorescence imperfectly developed, and no good corolla 

 extant, the cauline leaves 2 or 3 inches long and 2 lines broad. The long and soft, but 

 rather coarse hairs of the anther are not rarely a line and a half in length. 

 P. glaber, Parsh. Glaucous or glaucescent and very glabrous : stems ascending or 

 erect, a foot or two jiigh : leaves mostly oblong-lanceolate or the upper ovatedanceolate : 

 thyrsus elongated and many-flowered : peduncles and pedicels short, commonly very short : 

 sepals from orbicular-ovate and merely acute to ovate-lanceolate or strongly actiminate 

 from a broadish base: corolla (1 to \\ inches long) bright blue to violet-j)urple : anthers 

 (and also the apex of sterile filament) from glabrous to sparsely hirsute; the cells dehis- 

 cent to or very near their apex. — Fl. ii. 728, & Bot. Mag. t. 1072, &c., under the form P. 

 fflnbrn. P. erianthera, Nutt. in Fras. Cat. & Gen. ii. 53, not Fursh. P. Gordon!, Hook. 

 Bot. Mag. t. 4319. P. speclosns, Dongl. in Lindl. Bot. Reg. t. 1720; Brit. Fl. Gard. ser. 2, 

 t. 259 ; a narrower-leaved form, with anthers and sterile filament conmionly naked. P. 

 Kinc/ii, var. glanca, Kellogg in Froc. Calif. Acad. v. 39. — Plains of the Upper Missouri, in 

 Nebraska and Dakota, to Colorado and Arizona, and west to the Sierra Nevada in Cali- 

 fornia, and Oregon. — The following are extreme forms. 



