Plilox. POLEMONIACE^. 133 



* Loosely tufted or many-stemmed from a merely woody-persistent base, or wholly herbaceous, 

 with linear or lanceolate (or rarely ovate) spreading (approximate or sometimes distant) leaves, 

 which are little if at all fascicled m the axils : flowers slender-peduncled, solitary or somewhat 

 cymulose. 



-h- Style long and slender, often equalling or almost equalling the tube of the corolla. 

 •H- Arctic, with rather flaccid leaves and stems. 

 P. Sibirica, L. Mostly villous-pubescent, especially on the margins of the narrow linear 

 leaves, depressed and loosely cespitose, less than a span high : tube of the corolla little 

 longer than its obcordate or emarginate lobes, seldom surpassing the calyx : ovules 2 in 

 each cell. — (Grael. Fl. Sib. iv. t. 46, fig. 2.) Trautv. Imag. t. 24. — Kotzebue Sound. (N. 

 E. Asia.) 



++ ++ Temperate, inhabiting the plains and mountains from the borders of British Columbia south- 

 ward : leaves and commonly erect or ascending stems more firm or rigid : calyx-tube between the 

 strong ribs scarious, inclined to be membranaceous and more or less replicate, forming intervening 

 angles : the narrowly subulate and mostly rigid teeth shorter than the tube of the rose-colored 

 or sometimes white corolla. 



P. linearifolia, Gray. Glabrous, above sometimes minutely hirsute-pubescent, corym- 

 bosely much branched from a ligneous base, a span or more high : leaves very narrowly 

 linear (an inch or two long, about a line wide) : calyx-tube mostly saliently 5-angled from 

 the broader base by the strong replication of the white-membranaceoiis sinuses ; the lobes 

 nearly acerose : tube of the corolla little exceeding the calyx ; the obovate-cuneate lobes 

 entire or barely retuse : ovules 2 in each cell. — P. speciosa, var. linearifolia, Hook. Kew. 

 Jour. Bot. iii. 289, mostly. P. speciosa, Lindl. Bot. Reg. 1. 1351 ; Benth. in DC. 1. c — From 

 the Dalles to the upper waters of the Columbia, Douglas, Spalding, Geyer, &c. 



P. longifolia, Nutt. Nearly glabrous or pubescent, much branched or many-stemmed 

 from a ligneous base, 3 to 8 inches high : calyx more or less angled by the white-mem- 

 branaceous replicate sinuses : leaves mostly narrowly linear (1 to 2^ inches long) : lobes of 

 the corolla oborate- or oblong-cuneate, entire or retuse : ovules almost always solitary in 

 each cell. — Jour. Acad. Philad. vii. 41. P. speciosa, var., Hook. Fl. ii. 72. P. humilis, 

 Dougl. ; Benth. 1. c. : a small and short-peduncled form, sometimes apparently passing into 

 P. Douglasii, var. longifolia. — From the eastern side of the Rocky Mountains, Montana to 

 Colorado, west to Nevada and Oregon, and north to British Columbia or nearly : south- 

 westward passing into 



Var. Stansburyi, Gray, !■ c. Conspicuously pubescent throughout, or sometimes 

 glabrate, generally stouter and more open in growth : leaves from linear to linear-lanceo- 

 late : pubescence of the branches and calyx viscid or glandular : corolla mostly pink or 

 rose-color, and its tube commonly twice the length of the calyx ; the lobes emarginate or 

 erose at the apex: ovules sometimes a pair in one or two of the cells. — P. speciosa, var. 7 

 Stansburyi, Torr. Bot. Mex. Bound. 143. — Utah and Nevada to New Mexico and Ai-izona. 

 Passes into 



Var. brevif olia, Gray, 1- c, a depressed or dwarf form ; with leaves 9 to 4 lines long, 

 rigid and with more cartilaginous margins, at least the lower lanceolate or ovate-lanceo- 

 late: peduncles either short or none, or elongated. — From Dakotah (Black Hills) to N. 

 California and Arizona. 



P. adsurgens, Torr. Glabrous, except the slender peduncles and scarcely replicate- 

 angled calyx, which are glandular-pubescent : stems diffuse and ascending, slender (a span 

 or two long) : leaves ovate-lanceolate and ovate, acute, 5 to 10 lines long, all but the lower 

 much shorter than the internodes: tube of the corolla nearly twice the length of the 

 calyx; its lobes obovate, entire (about 5 lines long) : ovules solitary in each cell. — Gray, 

 Proc Am. Acad. viii. 256. — Cascade Mountains, Oregon, Prof. A. Wood, C. W. Cusick. 

 H_ H_ Style very short, mostly shorter than the ovary and the linear stic^mas : calyx-tube cylin- 

 draceous, the thin-membranous portion between the ribs not projecting mto salient angles. 



P. speciosa, Pursh. Above somewhat viscid-puberulent or glandular, below often gla- 

 brous, a foot to even a yard high ; the branches ascending from a shrubby base : leaves 

 lanceolate or linear (an inch or two long) ; the upper especially broadest at base : flowers 

 corymbose : corolla rose-pink or nearly white ; its tube little exceeding the calyx ; its 

 lobes obcordate: ovules solitary. — Gray, Proc. 1. c. & Bot. Calif, i.486. P. speciosa, var. 

 latifolia, Hook. Kew. Jour. Bot. I. c. P. divaricata, Durand. PI. Pratten., not Michx. 

 P.'occidentalis, Durand. in Pacif. R. Rep. iv. 125 : a broad-leaved form. — Interior plams of 



