497 



L. palustre, L. ; Lodd. Bot, Cab. t, 560. Northern and 



Arctic Regions. 

 L. augustifolium, Hort. 

 L. longifolium, HorL 

 L. odoratum, Hort. 



Var. dilatatum. 



t AZALEASTRUM. 



Rhododendron albiflorum, Hook. ; Bot. Mag. t. 3670. 

 Northern Rocky Mountains and Oregon to British 

 Columbia. 



R ovatum, Planch. China. 



Azalea ovata, Lindl. ; Bot. Mag. t. 5064. 



tt AZALEA. 

 R. Albrechti, Maxim. Japan. 



R. arborescens, Torr. ; Garden and Forest 1888, 404, f. 64. 

 Mountain region from Pennsylvania to North 

 Carolina and Tennessee. 

 Azalea arborescens, Pursh. 

 A. fragrans, Rafin. 



R. calendulaceum, Torr. Pennsylvania to Georgia. 

 Azalea calendulacea, Michx. 

 A. pontica var. calendulacea, Pers. 



Var. fiammea. Bot, Mag. t. 2143. 



Var. Morteri, Sweet Brit. Fl. Gard. iv. t, 10. 



" R. calendulaceum x red variety of R. nudiflorum." 



Many garden varieties and hybrids. 



