GENUS 9. 



FIGWORT FAMILY. 



2. Pentstemon canescens Britton. Gray 

 Beard-tongue. Fig. 3756. 



Pentstemon laevigatus var. canescens Brrtton, 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, narrowed into long 

 margined petioles, the next i or 2 pairs con- 

 tracted below the middle and somewhat fiddle- 

 shaped, 3'-6' long, the upper ovate or ovate-lan- 

 ceolate, acuminate, clasping; thyrsus elongated, 

 open, glandular-pubescent, leafy-bracted below ; 

 pedicels very short; calyx-segments lanceolate, 

 acuminate ; corolla purple or nearly white, about 

 l' 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 to western Kentucky. Recorded from Mis- 

 souri. May-June. 



3. Pentstemon pallidus Small. Pale Beard- 

 tongue. Fig. 3757. 



Pentstemon pallidus Small, Fl. SE. U. S. 1060. 1903. 



Puberulent, or sometimes canescent-puberulent; stem 

 3-^) tall. Basal and lower stem-leaves with oblong 

 elliptic or nearly spatulate blades; upper stem-leaves 

 few, the blades oblong, lanceolate or linear-lanceolate, 

 rather remotely toothed, partly clasping; panicles nar- 

 row; calyx-segments ovate, becoming triangular, acute, 

 closely puberulent or pubescent during anthesis ; corolla 

 white or purplish, g"-io" long, the tube rather grad- 

 ually dilated, the throat sparingly bearded; sterile fila- 

 ment bearded with very short hairs. 



In sandy soil or swamps, Connecticut and New York to 

 Missouri, Florida and Oklahoma. June-July. 



4. Pentstemon erianthera Pursh. Crested 

 Beard-tongue. Fig. 3758. 



Pentstemon erianthera Pursh, Fl. Am. Sept. 737. 1814. 

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



Puberulent below, glandular-villous and viscid 

 above ; stem rather stout, leafy, 6'-i8' high. Leaves 

 firm, entire or repand, the lower and basal ones 

 oblong or spatulate, obtuse or acutish, 2'-^' long, 

 narrowed into margined petioles, the upper sessile 

 or somewhat clasping, acute or acuminate ; thyrsus 

 dense, narrow, leafy-bracted ; flowers almost ses- 

 sile ; calyx-segments linear-lanceolate, acuminate, 

 villous when young; corolla about i' long, rather 

 abruptly dilated above, red or purple, its lower 

 lip villous within; sterile filament densely long- 

 bearded. 



On plains and bluffs, South Dakota to Manitoba, 

 Montana, Nebraska and Nevada. May-July. 



