PENTSTEMON 



PEPEROMIA 



2543 



FF. Corolla 1 in. or less long. 



36. erianthera, Pursh (P. cristatus, Nutt.). Only a 

 few inches high, pubescent, usually viscid above: Ivs. 

 linear-lanceolate to narrow-oblong: infl. erect, leafy 

 below; fls. about 1 in. long, purplish, rather abruptly 

 dilated above, the lower lip bearded; sterile filament 

 strongly yellow-bearded. Dakota to Colo., north and 

 west. Good. 



37. ovatus, Douglas. St. slender but erect, 2-4 ft., 

 more or less pubescent : Ivs, ovate, rather thin, bright 

 green, serrate, the upper ones clasping: infl. erect but 

 lax, the peduncles 2- to several-fld.; fls. about %in. 

 long, blue changing to purple, 2-lipped and the lower 

 lip bearded. Idaho, west and north. B.M.2903. Good. 



38. hirsutus, Willd. (P. pubescens, Soland. Chelone 

 hirsuta, Linn.). Loose-growing, the slender often decum- 

 bent sts. reaching 2 ft., usually viscid-pubescent: Ivs. 

 oblong to narrow-lanceolate, small-toothed, the radical 

 ones ovate to spatulate : infl. loose and open,the peduncles 

 2-3 in. long and the pedicels often 1 in. long; fls. about 

 1 in. long, drooping, dull purple or violet or varying to 

 flesh-color, rather narrow, with 2 short lobes densely 

 bearded on the palate; sterile filament densely bearded. 

 Dry fields and banks from Maine and Ont. to Fla. and 

 Texas. B.M. 1424. G.M. 56:493. The common pentste- 

 mon of the E., and useful in cult. P. Mackayanus, 

 Knowles & Weste., is perhaps distinct: corolla often 

 shorter, sparingly bearded in throat, purple: upper 

 st. -Ivs. with dilated or rounded bases rather than nar- 

 row-lanceolate. Ala. to Ark. 



AA. Cells of anthers not dehiscing or opening to the base, 

 the basal part remaining saccate 



B. Li-s. dentate or serrate. 

 C. Plant viscid and soft-pubescent. 



39. glanduldsus, Douglas (P. staticifolius, Lindl.). 

 Rather stout, 2-3 ft. tall: Ivs. rather thin, ovate-lanceo- 

 late, acuminate, the upper ones clasping, the radical 

 ovate or oblong, all toothed or serrate: infl. narrow, 

 leafv below, the peduncles few- to several-fld.; fls. 

 large, somewhat over 1 in. long, lilac, with inflated 

 throat, the lips short and broad; sterile filament gla- 

 brous. Idaho to Wash, and Ore. B.M. 3688. B.R. 

 1262; 1770. Showy. 



cc. Plant not viscid, either glabrous or puberulent. 



40. venustus, Douglas. St. erect, nearly simple, 

 leafy, 2 ft. or less tall, glabrous: Ivs. thickish, oblong- 

 lanceolate to ovate-lanceolate, very sharply serrate: 

 infl. narrow, not leafy, the peduncles 1-3-fld.; fls. 

 usually more than 1 in. long, somewhat 2-lipped, light 

 purple, somewhat hairy within; sterile filament hairy 

 above. ' Idaho, Ore., and Wash. B.R. 1309. 



41. diffusus, Douglas (P. argutus, Paxt.). Sts. 

 about 2 ft. tall, diffuse: Ivs. ovate to oblong-lanceolate 

 to cordate-ovate, unevenly and deeply serrate: infl. 

 leafy, the pedicels very short ; fls. %in. long, light purple, 

 2-lipped; sterile filament hairy above. Ore., north. 

 B.M. 3645. B.R. 1132. R.H. 1872:410. 



BB. Lvs, deep-cut. 



42. Richardsonii, Douglas. Rather loosely branch- 

 ing: Ivs. ovate-lanceolate to narrow-lanceolate, deeply 

 cut or pinnatifid, the upper ones not opposite: infl. 

 loose; fls. %in. long, light purple; sterile filament 

 somewhat hairy at top. Ore. and Wash. B.M. 3391. 

 B.R. 1121. L.B.C. 17:1641. 



BBB. Lvs. entire, 

 c. Sterile filament somewhat bearded. 



43. gracilentus, Gray. A foot or more tall from a 

 woody base, naked above: Ivs. lanceolate to linear or 

 oblong, glabrous: infl. loose, the viscid peduncles 2-5- 

 fld.; fls. Kin. long, violet-blue, the lobes very short. 

 N. Calif., Nev., and Ore. 



cc. Sterile filament glabrous. 



44. laetus, Gray. About 1 ft. tall, from a woody 

 base, closely pubescent: Ivs. lanceolate to linear- 

 lanceolate, the radical ones spatulate: fls. 1 in. long, 

 blue. Calif, and Nev. 



45. Roezlii, Regel. Smaller than the last, 1 ft. or 

 less, glabrous or minutely puberulent below: Ivs. 

 lanceolate, linear, or 



oblanceolate: fls. pale 

 blue or violet, on 

 divergent branches, 

 the corolla %-%va. 

 long. Nev., Calif., 

 Ore. The plant cult, 

 under this name may 

 be, in some cases, P. 

 azureus var. Jaffray- 

 anus. 



46. azureus, Benth. 

 Erect or ascending, 3 

 ft. or less, glaucous, 

 sometimes minutely 

 pubescent: Ivs. nar- 

 row-ovate to narrow- 

 lanceolate: infl. loose 

 and open; fls. IK i n - 

 or less long, blue to 

 violet, sometimes red- 

 dish at the base, the 

 limb about 1 in. 

 across. Calif. B.M. 

 7504. J.F. 2:211. 



Var. Jaffrayanus, 

 Gray (P. Jaffray- 

 anus, Hook.). Lower 

 (about 1 ft. tall), 

 young sts. tinged 

 with red: Ivs. oblong 

 to oval or the upper ones ovate-lanceolate, glaucous: 

 fls. large and showy, rich blue and reddish at base and 

 in the throat. Calif. B.M. 5045. R.H. 1874:430. H. 

 F.II. 1:5. G.C. in. 58:67. By some kept specifically 

 distinct. 



47. heterophyllus, Lindl. Sts. reaching 3-5 ft., 

 from a woody base, the plant mostly green : Ivs. vary- 

 ing from oblong-lanceolate above to lanceolate and 

 linear below: infl. loose and open, the peduncles usu- 

 ally 1- or 2-fld.; fls. about 1 in. long, pink or rose-pur- 

 ple, very slender at the base but fufl or inflated above, 

 the lips" well marked. Calif. B.R. 1899. B.M. 3853. 

 R.H. 1875:110; 1896, p. 348; 1901:164. 



48. Bridgesii, Gray. Sts. 1-2 ft., from a somewhat 

 woody base, glabrous or perhaps puberulent up to the 

 thyrse: Ivs. lanceolate to linear: peduncles 1-5-fld., 

 short, glandular; corolla about 1 in. long, bright scarlet, 

 narrow, the lips one-third length of tube; anthers 

 sagittate. S. W. Colo, and N. Ariz, to Calif. Gn. 66, 

 p. 348. 



As the pentstemons are mostly attractive plants, any number of 

 them may appear in the lists of distributors of native plants. P. 

 baccharifdliut. Hook. Glabrous or only obscurely puberulent, leafy 

 at base, 2 ft.: hrs. oblong, sharp-toothed, sessile: fls. deep carmine- 

 red, on 1-3-fld. peduncles: corolla 1 in. long, broadly tubular, with 

 short 2-lipped limb; sterile filament naked. Texas. J.F. 3:227. P. 

 pygmxus is a name listed abroad: "very compact-growing; pale pur- 

 ple and white fls." P. rirgatus. Gray. Glabrous or slightly glandu- 

 lar, the st. strict and long: Ivs. linear-lanceolate: fls. lilac with purple 

 veins, in a virgate thyrse; corolla J^n. long, with a wide throat and 

 distinctly 2-lipped. "Xew Mex., Aria. j^ jj g 



PEONY: Pseonia. 



PEPEROMIA (Greek, pepper-like). Piperdceae. An 

 enormous genus of tropical and subtropical herbs, 

 including a few small but choice foliage plants for 

 wannhouse, conservatory, or house decoration. 



Annual, or perennial by a creeping caudex or by 



2864. Pentstemon Cobawu (XJi) 



