OF THE WASATCH REGION 85 



1. PBNTSTEMON. Beard-tongue; Foxglove, 



Perennial herbs with opposite leaves (the upper sessile and, 

 mostly clasping). Inflorescence terminal; racemose, cymose or 

 panicled. Flowers showy. Calyx 5-parted. Corolla 2-lipped, 

 more or less inflated. Stamens 5, included; 4 being didynamous, 

 the fifth sterile and often bearded; anther-sacs divergent or 

 confluent. Style filiform. Stigma capitate. Capsule septi- 

 cidal. Seeds angled. 



Anther-cells splitting their entire length or nearly so. 

 Anther-cells not confluent. 



Stem somewhat stout; leaves broadly lanceolate 



to ovate or subcordate 1. P. cynnanthun 



Stem strict, rather slender; leaves narrowly 



lanceolate 2. P. utahensis 



Anther-cells confluent. 



Stems glabrous 3. P. brevifolius 



Stems puberulent or pubescent 4. P. collinua 



Anther-cells splitting only at apex; their bases closed and 



sac-like 5. P. Kingii 



1. P. cyanantlms Hook. (P. glaber cyananthus Gray). Blue 

 Bells. Stems several from one root, 8-24 inches hign, rather 

 glaucous. Basal leaves mostly elliptical-ovate; stem-leaves 

 subcordate. Panicle thyrsoid, dense, many-flowered; very 

 showy. Flowers from pale to dark blue. Sepals narrow, 

 acuminate. Anthers and sterile filament from hirsute to nearly 

 glabrous. On hillsides and in mountain valleys. May-July. 

 4,500-9,000 ft. 



2. P. utahensis (Gray) A. Nels. (P. glaber utahensis A. Gray.) 

 Stem 12-40 inches high. Basal leaves crowded, on long petioles; 

 stem-leaves remote, becoming sessile toward the apex. Thyr- 

 sus elongated. Sepals ovate-acuminate, narrowly scarious- 

 margined. Anthers and sterile filament sparsely bearded with 

 short hairs. Dry rocky soil. June-July. 



3. P. brevifolius (Gray) A. Nels. (P. humilus brevifolius A. 

 Gray). Stems 4-12 inches high; weak, slender, diffuse, freely 

 branching; several to many from a woody caudex. Basal 

 leaves numerous, oblong to nearly round, with entire margins, 

 on petioles as long as the blades; stem-leaves oblong-spatulate, 

 nearly sessile. Inflorescence obscurely glandular-pubescent. 

 Flowers dark-blue. In clefts of rocks in mountains. June- 

 August. 



4. P. collinus A. Nelson. Plant caespitose. Stems 8-16 inches 

 high; erect, numerous, from a matted, much-branched root- 

 stalk. Basal leaves numerous, glabrous, elliptic-oblong with 

 entire margins, on slender petioles as long as the blades; 

 stem-leaves narrowly oblong or spatulate at length becoming 

 bracts above. Thyrsus strict, interrupted. Corolla deep-blue. 

 Gravelly hills. June-August. 



5. P. Kinuii Wats. Hoary or glandular-pubescent, at least 

 below. Stems ascending; 4-20 inches high; numerous from a 

 woody base. Lower leaves short-petioled, spatulate with en- 

 tire margins and acute apex; upper leaves sessile and oblance- 

 olate with erose margins and acuminate apex. Inflorescence 

 somewhat unilateral. Corolla lilac-purple, short-bilabiate, 

 dilated above. Anthers glabrous, but hairy-margined; sterile 

 filament glabrous and flattened toward the apex. Exposed 

 cliffs and aiountain sides. June-July. 



