Vol. III.] 



FIGWORT FAMILY. 



151 



I. Pentstemon hirsutus (L.) Willd. 

 Hairy Beard-tongue. (Fig. 3247.) 



Chelone hirsuta L. Sp. PI. 611. I75,v 



P. pubescens%o\-&n&. in Ait.Hort. Kew. 3:360. 1789. 



Penlstemon hirsutus Willd. Sp. PI. 3; 227. 1801. 



Stem sleuder, erect, dowuy nearly or quite 

 to the base, i°-3° higU. Leaves puberulent 

 or glabrous, denticulate or the uppermost 

 entire, the basal oblong or ovate, obtusish at 

 the apex, 2'-^y2' long, ^'-2' wide, narrowed 

 into petioles, the upper sessile, lanceolate, 

 mostly acuminate, sessile or slightly clasping; 

 infloresceucc 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 10" 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 dr>' 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 laeviga/us var. canescens Britton, 



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

 P. canescens'BrWXon, 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 

 I or 2 pairs contracted below the middle and 

 somewhat fiddle-shaped, 3'-6' long, the upper 

 ovate or ovate-lanccoIate, 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, glandular-villous and vis- 

 cid above; stem rather stout, leafy, 6'-iS' high. 

 Leaves firm, entire or repand, the lower and basal 

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

 long. narroVved 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 l' 

 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 

 lo Nebraska and Nevada. May-July. 



