qq BOTANICAL MAGAZINE. rvoi. xviit, 



Var. albijlorum (Maxim.) is merely a form with white flowers, and 



there is the intermediate form between this and the typical form. The 

 latter bears atro-purpureous flowers. 



Rhododendron rhombicum Miq. var. albifiorum Makino var. 



nov. 



Flower white. 



Hab. Prov. Tosa : Zyodaizi-yama in Sakawa, spont. {T. Makino ! 

 April 1885). 



Very rare. 



Rhododendron Tschonoskii Maxim, a. typicum Makino. 



a. pentamerum Makino. 



nhododendron Tschonoskii Maxim, in Mel. Biol. VII. p. 339 (1870), 

 et Rhodod. Asise Orient, p. 42, tab. 3, fig. S h -14 ; Franch. et Sav. Enuru. 

 PI. Jap. I. p. 293. 



Corolla-lobes 5. Stamens 5. 



Hab. Japan. 



b. tetramerum Makino. 

 Corolla-lobes 4. Stamens 4. 

 Hab. Japan. 



In those two forms, the corolla-tube may be either longer or shorter 

 than lobes, and the flower is also variable in size. The flower with the 

 long-corolla-tube very closely resembles that of Tsusiophyllum Tanakce 

 Maxim. 



;3. trinerve (Franch) Makino. 



Leaves usually larger, trinerved. Corolla-lobes 4-5, longer than the 

 tube ; tube short. Stamens 4-5. 



a. pentamerum Makino. 



Bhododendron trinerve Franch. in herb. Mas. Par. ex Boissieu in Bull. 

 Herb. Boiss. V. (1897) p. 920. 

 Corolla-lobes 5. 

 Hab. Japan. 



b. tetramerum Makino. 

 Corolla-lobes 4. Stamens 4. 

 Hd>. Japan. 



