SNAPDRAGON FAMILY 137 



bracts clasping, rounded or 

 broadly ovate, the base 

 heart-shaped 



r. Stems 2-6 ft. high, glaucous; 

 leaves oval to round ; flowers 

 4-5 cm. long P. grandiflorus 



s. Stems 1-2 ft. ; leaves linear to 

 lance-ovate; flowers 1.5-3 

 cm. long 



(r) Flower cluster short, dense, 

 the ovoid bracts nearly 

 concealing the blue flow- 

 ers beneath; a plains 

 species P. Hdydeni 



(s) Flower cluster often 6-10 

 in. long, interrupted, the 

 bracts round, pointed, 

 small; flowers rose-pur- 

 ple ; at 7-9000 ft. P. cyathophorus 

 (n) Upper leaves and flower bracts 

 not clasping and cordate, 

 lance-ovate to linear 

 r. Corolla 1.5-2 cm. long; stems 

 1-10 in. high, usually tufted ; 

 leaves lance-linear to long- 

 linear 



(r) Flowers purple, sterile sta- 

 men densely bearded ; 

 at 10-13000 ft. P.Hdllii 



(s) Flowers deep blue, sterile 

 stamen short-bearded ; 

 at 3-6000 ft. P.angustifolius 



s. Corolla 2-4 cm. long; stems 



mostly 1-5 ft. high 

 (r) Leaves narrow, lanceolate 

 or oblanceolate to linear ; 

 stems strict, tall, 2-5 ft. 

 high P. unilaterdlis 



(s) Leaves broader, lance-ov- 

 ate to ovate or oblong; 

 stems usually clustered, 



