SCKOPHULARIACE^. (FIG WORT FAMILY.) 277 



ouslj bearded within. — ^Mountains of Colorado and uorthward, thence west- 

 ward to Oregon and through the Sierra Nevada. 



16. P. Watsoni, Oray. Glaucesceut and glabrous throughout, or inflo- 

 rescence and calyx ])ul)erulent, hut not viscid, a foot or more jtigli : cauline 

 leaves ohlonglanceolate to ovate-lanceolate, acute or acuminate, entire or 

 denticulate: contracted thijrsus rather loose: pedicels longer than the calvx : 

 sepals broadli) ovate or orbicular, somewhat scarious-niarginod : corolla narrowly 

 funnelform, 6 to 8 lines long, violet-purple or partly white ; lower lip almost 

 (jlaJirons within. — Synopt. Fl. ii. 267. P. Fremont i, var. Parn/i, Oray. Moun- 

 taius of W. Colorado, Utah, Nevada, aud Arizona. 



17. P. humilis, Nutt. Glabrous or visrid-pubesrent above, a span or two 

 high : leaves glaucesceut, from obloug to lanceolate ; the cauline commonly 

 denticulate : tht/rsus strict and virf/ate, 2 to 4 inches long: pedicels .short: sr/nils 

 ovate or lanceolate and acuminate : corolla narrowly funnelfonu, half-inch long, 

 deep-blue or partly w'hite ; lower lip somewhat hain/ ivithin. — In the mountains 

 from S. Colorado to the British boundary and westward. 



Var. brevifolius, Gray. A low and diffuse tufted form, with weak 

 stems: leaves at most half-inch long; cauline elliptical-oblong; the radical 

 oval or rotund: corolla ligiit blue. — Synopt. Fl. ii. 267. In the Wiusatch 

 Mountains of Utah at 9,000 or 10,000 feet elevation. 



18. P. gracilis, Nutt. A foot or less high, glabrous or merely puberu- 

 lent up to the more or less viscid-pubescent strict thi/rsus: stems slender: cauline 

 leaves mostlij linear-lanceolate, sometimes denticulate ; the radical sjtatulate or 

 oblong: cymes of the thyrsus pedunculate : sepals lanceolate, acute, yjiarf/inlrss: 

 corolla tubular-funnel form or almost ci/lindraceous, lilac-purple or sometimes 

 whitish, f to 1 inch long; the throat open. — P. pubescens, var. gracilis, (Jray. 

 From Colorado to Wyoming aud the Saskatchewan. 



19. P. glaucus, Graham. Glabrous up to the inflorescence, more or less 

 glaucou.s : stems dwarf or ascending, a span to a foot high : leaves thickish, 

 oblong-lanceolate or the radical oblong-ovate, entire or denticulate : thi/rsus short 

 and compact, either simple or compound, viltous-pid)escent and viscid or glandular : 

 corolla dull lilac or violet-purple, less than an inch long, sivollen above the short 

 tube, gibbous ; the throat widely open ; the broad lower lip sparsely villous- 

 bearded within. — Mountains of Wyoming, Utah, and far northward. 



Var. Stenosepalus, Gray. Sometimes over a foot high : thyrsus com- 

 paratively small and glomerate : sepals attenuate-lanceolate : corolla dull 

 whitish or purplish. — Mountains of Colorado and Utah. 



•*-»■ I-*- Leaves from linear-spatidate to obovate, entire : stems low-cespitose 

 spreading, leafij to the summit, few- flowered. 

 = Leaves green and mosth/ glabrous, ^ to ^ inch wide. 



20. P. Harbourii, Gray. Tufted nearly simple stems 2 to 4 inches 

 high, puberulent : leaves about 3 pairs, thickish, obovate, oval, or the upper- 

 most ovate, these sessile by a broad base : thyrsus reduced to 2 or 3 crowded 

 short-pedicelled flowers : sepals villous and somewhat viscid : corolla little 

 bilabiate, with rather broad cylindraceous throat and tube ; lower lip beardei' 

 within. — Proc. Am. Acad. vi. 71. High alpine region of the Colonwk 

 ^lountains. 



