Pentstemon. SCROPHULARIACEiE. 559 



11. P. Clevelandi, Gray. About 3 feet high, rather leafy: leavers oblong, in-eg- 

 iilarly and sharply toothed (2 inches long); the floral merely small ovate-subulate 

 bracts of the loose and naked virgate panicle : few-flowered peduncles and pedicels 

 slender: calyx herbaceous; the fobes ovate: corolla crimson (three fourths of an 

 inch long), tubular-funnelform, distinctly ])ila]jiate ; the lobes barely one quarter 

 of the length of the tube including the throat : sterile fllaraent moderately bearded 

 at and below the dilated tip. — Proc. Am. Acad. xi. 94. 



Canon Tantillas, in Lower California, about 25 miles below the State boundary {Ckvchnid, 

 Palmer) ; east of San Bernardino, Parry. 



12. P. acuminatUS, Dougl. A foot or so high, leafy : leaves from ovate to 

 oblongdanceolate (an inch or two long), entire; the upper and the floral ones inclined 

 to be cordate-clasping : flowers numerous in a long and mostly interrupted virgate 

 spike-like panicle, the base of which is usually leafy, mostly several in the floriferous 

 axils : pedicels and especially the peduncles short : lobes of the calyx narrow or 

 acuminate : corolla lilac-purple or violet, with open throat and widely spreading 

 lobes : sterile filament strongly bearded at the dilated tip (rarely naked) : capsule 

 firm-coriaceous and acuminate. — Lindl. Bot. Eeg. t. 1285. P. nilLlus, Dougl. 

 P. Fendleri, Gray in Pacif. E. Rep. ii. 168, t. 5. 



Near Humboldt Lake, Nevada, Watson. Therefore not improbably reaching the borders of 

 the State. A neat species, widely diffused northward and eastward through the interior region 

 to and beyond the Kocky Mountains. 



^^ ++ +^. Corolla half an^nch or less in length, blue, purjjlish, or whitish, moderately 



enlarging above ; the roundish lobes spreading. 



= Leaves serrate or toothed. 



1 3. P. deustus, Dougl. A span to a foot high, in tufts from an almost woody 

 branching base, glabrous : leaves all sessile, from ovate to liuear-oblong, seldom over 

 an inch long, sharply serrate with many or rarely few narrow teeth (occa.sionally 

 some of them entire) : narrow and virgate or spike-like panicle mostly leafy below ; 

 the clusters several - many-flowered, close : peduncles and pedicels short : corolla 

 cream-color or buff, sometimes with a tinge of rose : sterile filament naked. — Lindl. 

 Bot. Eeg. t. 1318. P. heterander, Torr. & Gray, in Pacif. E. Eep. ii. 123, t. 8. 



Dry rocks and banks, eastern side of the SieiTa Nevada (Sierra Valley, Lemmon, &c.), to the 

 interior borders of British Columbia and Wyoming Terr. Varies much in the foliage and more 

 or less dense or interrupted inflorescence; also in the sepals, which :iic cDiinnonly lanceolate 

 and rather long, sometimes shorter, rarely almost ovatr. /'. Inin-n ml. r is a iiaiinw-li'aved and 

 strict form, from Beckwith's Pass, in which the sterile lilamfiit was fuuii.l tn l.r antlieriferous ; 

 but this occasionally happens in cultivated plants of other species, and has not been found a 

 second time in this. 



P. OVATUS, Dougl. Bot. Mag. t. 2903, a native of the woods of Oregon, may reach California : 

 it is a foot 01' two high, minutely pubescent, has thinnish and blight green ovate or somewhat 

 cordate and acutely serrate leaves, and a rather open naked panicle of blue flowers. 



= =^ Leaves quite entire. 



14. P. Gairdneri, Hook. A span high, in tufts from a somewhat woody base, 

 minutely cinereous-puberulent throughout : leaves all linear or the radical linear- 

 spatulate, seldom an inch long, the margins soon revolute : flowers few and almost 

 simply racemose : calyx somewhat glandular : sterile filament bearded down one 

 side. — Benth. in DC. Prodr. x. 321. 



Virginia City, Nevada {Bloomer), doubtless also within the State line : also in the dry interior 

 of Oregon. 



P. LARICIFOLIUS, Hook. & Am., a still dwarfer species, wholly glabrous, with simple stems 

 and leaves almost filiform, sparingly inhabits the same interior region, and may leach the north- 

 eastern borders of the State. 



P. AMBIGUUS, Ton-., also with filiform leaves and racemose flowers, liut taller and branching, 

 is of more southern range through the interior, and is not known farther west than Southern 

 Utah. 



