344 



Scrophularinea Pentstenwn. 



and a profusion of purplish carmine or violet flowers. Sepals 

 serrate. There are several garden varieties, amongst them one 

 having rosy flowers with a white throat. 



4. P. ovatus. In foliage this species is extremely near 

 P. diffusus, but the corolla is more decidedly tubular, only 

 slightly expanded at the mouth, and the lobes erect. Flowers 

 deep violet-blue, slightly freckled. 



5. P. speoiosus. A handsome hardy species from 2 to 3 feet 

 high with glaucous spathulate leaves and long narrow panicles 

 of large intense blue bilabiate flowers, produced all the 



Summer. It is said to be variable 

 from seed, rarely reproducing the 

 beautiful tint of the wild form. Cali- 

 fornia. 



6. P. Wrightii. This is another 

 good hardy species from 12 to 18 

 inches high. Leaves glaucous, entire. 

 Flowers of medium size, rosy carmine. 

 Corolla broadly tubular, with a wide 

 mouth slightly irregular but not bila- 

 biate. A native of Texas. 



7. P. gentianoides (fig. 190). A 

 very beautiful hardy species from the 

 high mountains of Mexico. It grows 

 about 3 or 4 feet high, bearing long 

 leafy panicles of bright violet-blue or 

 scarlet and white flowers. This must 

 not be confounded with P. Hartwegii, 

 which bears the same name in some 

 gardens, and has rather smaller violet- 

 blue flowers shaded with deep blue on 

 the outside. The tube is shorter and 

 more inflated. Possibly they may be 

 varieties of one species, as they are 

 both very variable under cultivation. 



8. P. pulchellus. A showy but 

 rather tender species with sessile 

 linear-lanceolate serrulate glabrous 



leaves and secund racemes of rosy pink flowers sometimes 

 tinged with purple. Corolla very much inflated, with small 

 nearly regular spreading lobes. A native of Mexico. 



9. P. cordifolius. Another tender Mexican species. It is 



Fig. 190. Pentstcnaon gentianoides 

 (i nat. size.) 



