Vol. III.] 



FIGWORT FAMILY. 



151 



1. Pentstemon hirsutus (L,.) Willd. 

 Hairy Beard-tongue. (Fig. 3247.) 



Chelone hirsuta L. Sp. PI. 6n. 1753. 



P. pubescens Soland. in Ait.Hort. Kevv. 3: 360. 1789. 



Pentstemon hirsutus Willd. Sp. PL 3: 227. 1801. 



Stem slender, erect, downy nearly or quite 

 to the base, i-3 high. Leaves puberulent 

 or glabrous, denticulate or the uppermost 

 entire, the basal oblong or ovate, obtusish at 

 the apex, i'-^/?.' long, y z '-i' wide, narrowed 

 into petioles, the upper sessile, lanceolate, 

 mostly acuminate, sessile or slightly clasping; 

 inflorescence thyrsoid, rather loose, glandular- 

 pubescent; pedicels mostly short; corolla pur- 

 plish or violet, the tube gradually dilated above, 

 2-grooved on the lower side, about io // long, 

 the throat nearly closed by the villous palate 

 -at the base of the lower lip; sterile filament 

 densely bearded for about one-half its length. 



In dry woods and thickets, Maine to Ontario 

 and Manitoba, south to Florida, Minnesota and 

 Texas. May-July. 



2. Pentstemon canescens Britton. 



Gray Beard-tongue. (Fig. 3248.) 



Pentstemon laevigatus var. canescens Britton, 



Mem. Torr. Club, 2: 30. 1890. 

 P. canescens Britton, Mem. Torr. Club, 5: 291. 1894. 



Densely and finely canescent or puberulent, 

 or the leaves sometimes nearly glabrous; stem 

 rather stout, i-3 high. Leaves denticulate, 

 the lower and basal ones oval, obtuse, nar- 

 rowed into long margined petioles, the next 

 1 or 2 pairs contracted below the middle and 

 somewhat fiddle- shaped, $'-& long, the upper 

 ovate or ovate-lanceolate, acuminate, clasping; 

 thyrsus elongated, open, glandular-pubescent, 

 leafy -bracted below; pedicels very short; calyx- 

 segments lanceolate, acuminate; corolla purple 

 or nearly white, about i / long, slightly or not 

 at all bearded in the throat; sterile filament 

 slightly bearded for about one-third its length; 

 capsule ovoid, glabrous, longer than the calyx. 



In dry woods, Virginia.West Virginia and North 

 Carolina, in and near the mountains. May-June. 



3. Pentstemon cristatus Nutt. 



Crested Beard-tongue. (Fig. 3249.) 

 Pentstemon cristatus Nutt. Gen. 2: 52. 1818. 



Puberulent below, glaudular-villous and vis- 

 cid above; stem rather stout, leafy, S'-iS' high, 

 Leaves firm, entire or repand, the lower and basal 

 ones oblong or spatulate, obtuse or acutish, 2 / -4 / 

 long, narrowed into margined petioles, the upper 

 sessile or somewhat clasping, acute or acuminate; 

 thyrsus dense, narrow, leafy -bracted; flowers 

 almost sessile; calyx-segments linear-lanceolate, 

 acuminate, villous when young; corolla about i / 

 long, rather abruptly dilated above, red or pur- 

 ple, its lower lip villous within; sterile filament 

 densely long-bearded. 



On plains, Manitoba and the Northwest Territory 

 to Nebraska and Nevada. May-July. 



