202 THE AZALEAS OF NORTH AMERICA 



AZALEA SPECIOSA . UNDULATA Sweet, I. c. 265 (1826), name. 



Rhododendron speciosum K. undulatum Sweet, I. c. 343 (1830), "red." 

 AZALEA VISCOSA 0. CRISPA Sweet, Hort. Brit. 266 (1826). Loddiges, Cat. 

 apud Loudon, Arb. Brit. II. 1143 (1838). 



Rhododendron viscosum ft. crispum Sweet, Hort. Brit. ed. 2,344 (1830), "white." 

 AZALEA VISCOSA 7. DEALBATA Sweet, I.e. 266 (1826). Loddiges, I.e. 1143 

 (1838). 



Rhododendron viscosum 7. dealbatum Sweet, I. c. 344 (1830), "white." 

 AZALEA VISCOSA e. PENICILLATA Sweet, I.e. 266 (1826). Loddiges, I.e. 1143 

 (1838). 



Rhododendron viscosum e. penicillatum Sweet, I. c. 344 (1830), "red, white." 

 AZALEA VISCOSA PRAECOX Loddiges, I. c. 1143 (1838), name. 

 AZALEA VISCOSA STRICTA Carriere in Rev. Hort. 1872, p. 299. 

 Described as a very dwarf compact plant, with oval leaves glaucous beneath 

 and small white slightly pinkish flowers appearing at the beginning of May. The 

 early flowering time makes it improbable that this form belongs to R. viscosum. 



AZALEA VISCOSA f. VARIEGATA Sweet, I.e. 265 (1826). Loddiges, I.e. 1143 

 (1838). 



Rhododendron viscosum f . variegatum Sweet, I. c. 344 (1830), "red, white." 

 AZALEA VISCOSA VIOLAE ODORE Loddiges, I. c. 1143 (1838), name. 



Besides the doubtful names enumerated above, a large number of names with- 

 out or with very inadequate description have appeared in horticultural publications 

 taken in about all cases from various nursery catalogues. The following are some 

 of the more important references to lists of garden forms of Azaleas (exclusive of 

 Indian Azaleas) : 



Loudon, Arb. Brit. II. 1142-1144 (1838). 



Bosse, Vollst. Handb. Blumengart. I. 337, 340-342 (1840). 



Heynhold, Nomencl Bot. Hort. 108 (1840); II. 55-56 (1846). 



Steudel, Nomencl. I. 175 (1841). 



Henderson, Itt. Bouquet, text to t. 46 (1859-61), forms of R. norbitonense. 



Andre, PL Terr. Bruy. 164, 166, 187-189 (1864). 



Millais, Rhodod. 166-167, 212-214 (1917). 



