SELECTION OF PLANTS. 143 



434. PENTSTEMON DIFFUSUM. Spreading Pentstemon. 



Class 14th. Didynamia Angiospermia. 



A beautiful hardy Perennial, with evergreen leaves, and 

 decumbent rooting stems, by which it is increased. 



It ! s a native of Columbia, and grows freely either in 

 common light garden soil, or in the American borders. It 

 blows freely from June till frosts arrive. 



435. PRUNUS CANDICANS. Snowy Plum. 



Class 12th. Icosandria Monogynia. 



A fine hardy shrub, not exceeding 5 or 6 feet in height. 



Its native country is unknown. It is easily cultivated, 

 and in the spring is so laden with white blossoms, as to 

 seem a mass of snow, amidst the green leaves and rosy 

 flowers of the season. 



436. CASTILLEJA COCCINEA, or Vermilion-leaved 



Castilleja. 

 Class 14th. Didynamia Angiospermia. 



A pretty, hardy Annual ; native of gravelly soil in various 

 parts of North America. It is increased by seeds, which 

 are produced in small quantities ; it should be grown in 

 gravel, or peat and sand. 



437. PENTSTEMON PULCHELLUM. Pretty Pentstemon. 



Class 14th. Didynamia Angiospermia. 



A handsome, half-hardy Perennial ; native of Mexico, 

 whence seeds were brought in 1 826 ; it should be planted 

 in a warm border, exposed to the south. 



