OTHER AMERICAN PLANTS. Il7 



not allowed to dry up. From its fragrance and late 

 blooming, it is a desirable plant. There are nu- 

 merous varieties, and this species is the parent of 

 many hybrids. All are hardy. 



Some of the best are : rubescens, do. grandiflora, 

 Jloribunda, penicillata, do. picta. 



Azalea glauca 



Is only a variety of A. viscosa, with pale glaucous 

 foliage ; not uncommon. 



Azalea nitida 



Is also a variety of A. viscosa, of dwarf habit, 

 with dark green, shining leaves, and white, clammy 

 flowers, tinged with pink. 



Azalea calendulacea. 



A shrub, growing from five to ten feet high, with 

 hairy leaves and large, flame-colored or orange, scent- 

 less flowers ; native of the Middle and Southern 

 States. It is common in gardens, is hardy, and 

 flowers freely in May, the blossoms appearing with 

 the leaves. There are many varieties, of which we 

 may mention : Morterii, fulgida, calendulacea coc- 

 cinea, do. crocea, do. elegans, do. eximia, do. Jlam- 

 mea, do. superba, ignescens, triumphans. 



Azalea pontica. 



A native of Asia Minor and the Caucasus, form- 

 ing a tall shrub, with bright yellow flowers in the 



