116 THE AZALEAS OF NORTH AMERICA 



maintain Tsutsutsi as a distinct subgenus, since it is closely connected with Rho- 

 dora by the new section Sciadorhodion. 



As the name Azalea used first by Planchon as a Bubgeneric name is not the 

 oldest subgeneric name for the group, and as, moreover, the generic name Azalea 

 upon which the name of the subgenus is based properly belongs as a synonym to 

 Loiseleuria, 1 either Don's Penthanthera or Endlicher's Anthodendron must take its 

 place. As Pentanthera has been proposed originally as a sectional name and used 

 as such by later authors it may be retained as the name for the section to which it 

 should apparently be restricted by the meaning of its name, and Anthodendron 

 first published in 1827 as a genus may be adopted in an enlarged sense as the 

 proper name for the subgenus. 



1 See Jour. Arnold Arboretum, II. 156 (1921). 



