^ocietp MoUsl 
3. R. CANESCENS, G. Don, 1834. 
[A. CANESCENS, Michaux, 1803]. 
A shrub from 9 to 12 feet tall or less, with diffuse or spreading branches, 
minutely soft-pubescent and strigose twigs; leaves elliptic, elliptic-lanceolate, 
oblanceolate or narrowly obovate ; short petioled ; flower clusters expanding 
before or with early leaves ; corolla pink, rose and sometimes white. A native 
of Carolina, Louisiana and Florida. 
The “ mountain ” Azalea as it is called in North America was introduced 
(according to Loudon), in 1810. It is often confused with R. nudiflorum 
and R. calendulaceum. The flowers of R. canescens are very fragrant. 
4. R. VISCOSUM, Ton., 1824. 
[A. viscosA, Linn., 1753 ; A. nitida, Pursh, 1814 ; A. hispida, Pursh. 
A deciduous shrub, bushy in habit, 6 to 8 feet tall, with twiggy branches ; 
pubescent when young. Leaves cuneate or obovate ; short petioled ; flower- 
clusters expanding after the leaves ; corolla white or pink ; covered with viscid 
hairs. 
The “ Swamp Honeysuckle ” is a fine late blooming species with sweetly 
fragrant flowers. Introduced to England in 1734. A native of Maine to Ohio. 
Florida and the Mississippi valley. 
R. VISCOSUM var. glaucum (Azalea glauca), a handsome variety with 
bluish-white leaves and pure white fragrant flowers. 
5. R. ARBORESCENS, Ton., 1824. 
[A. ARBORESCENS, Pursh, 1814 ; A. FRAGRANS, Raj., 1820]. 
A deciduous shrub up to 20 feet high ; young shoots smooth ; leaves obovate 
or oval, pointed at both ends ; flowers have a very distinct fragrance ; corolla 
with spreading lobes, white tinged with pink ; stamens and filaments very bright 
red and much protruded. The leaves, when dried, smell like newly-mown hay. 
A native of Pennsylvania to Georgia, Kentucky and Alabama, discovered by 
John Bartram, and introduced to England in 1818. 
6 . R. occiDENTALE, Gray, 1876. 
[A. occiDENTALis, Torr., 1857 ; A. californica]. 
A deciduous rounded shrub up to 10 feet high ; young shoots slightly 
pubescent ; leaves oval or obovate ; flowers fragrant, white with yellow blotch 
on upper side; stamens and style protruded. Distributed throughout the 
mountains in South Oregon and California, and introduced to England by W. 
Lobb, for Messrs. Veitch, about the year 1851. 
123 
