18 THE AZALEAS OF THE OLD WOKLD 



in Flore des Serres, IX. (1854), emends Don's name to Tsutsia, includes 

 under it R. molle and R. Farrerae, and adds R. Championae Hook. In 

 the last-named species the flowers develop from clustered, axillary 

 buds, and it belongs to the section Choniastrum Franchet. Maximo- 

 wicz emends the section; calls it Tsutsia, but keeps under it R. Cham- 

 pionae. He also emends Planchon's subgenus Azalea and employs it 

 as a section to include R. Farrerae, R. molle and others; he also places 

 in it R. macrosepalum, which obviously belongs to the section Tsutsutsi. 

 Of the new section Sciadorhodion, R. Schlippenbachii may be taken 

 as the type, and under it we place R. reticulatum and R. Farrerae, referred 

 by G. Don to his section Tsutsutsi, also R. Weyrichii which Maximo- 

 wicz includes in his section Azalea. Together these form a very homo- 

 morphic group. The type of G. Don's section Pentanthera is the 

 Eurasian R. luteum Sweet, but as most of the species are American 

 I leave the discussion of it and also of the section Rhodora G. Don, 

 the type of which is American though a majority of the species are 

 Japanese, to my colleague Alfred Rehder. 



