I 



Pentstemon. SCROPHTJLARIACE^E. 559 



1 1 . P. Cleveland!, Gray. About 3 feet high, rather leafy : leaves oblong, irreg- 

 ularly 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 lobes ovate: corolla crimson (three fourths of an 

 inch long), tubular-funnelform, distinctly bilabiate ; the lobes barely one quarter 

 of the length of the tube including the throat : sterile filament 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 (Cleveland, 

 Palmer) ; east of San Bernardino, Parry. 



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

 oblong-lanceolate (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. nitidus, Dougl. 

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



Near Humboldt Lake, Nevada, IVatson. 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 Rocky Mountains. 



++ -n- ++ Corolla half an inch or less in length, blue, purplish, or whitish, moderately 



enlarging above ; the roundish lobes spreading. 



= Leaves serrate or toothed. 



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

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

 an inch long, sharply serrate with many or rarely few narrow teeth (occasionally 

 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 Sierra Nevada (Sierra Valley, Lcmmon, &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 are commonly lanceolate 

 and rather long, sometimes shorter, rarely almost ovate. P. heterander is a narrow-leaved and 

 strict form, from Beckwith's Pass, in which the sterile filament was found to be antheriferous ; 

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

 second time in this. 



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

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

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



= = Leaves quite entire. 



1 4. 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. & Arn., a still dwarfer species, wholly glabrous, with simple stems 

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

 eastern borders of the State. 



P. AMBIGUUS, Torr., also witli filiform leaves and racemose flowers, but taller and branching, 

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

 Utah. 



