208 'iitJ^ BOTANICAL MAGAZINE. LV"i- xxxiii. ko. sos 



flavescentes. 



This is an extreme variet}' of common Japanese h\\\-Rhododcndron 

 — Yamatsutsuji or Rhododendron Kaempferi. The type of George Don 

 is a form liaving broad leaves and ten stamens, but when it diminishes in 

 the breadth of leaves and in the number of stamens, it passes gradaally 

 into Rhododendron Kiempferi. Tliere are no such variable Rhododen- 

 dron like R. Koiinpfcri in Japan. At any-^ spots where R. Ksempferi 

 grows abundantly^ we can gather any coloured flowers which varies 

 among white, brick-red and purple. The variety mikawanutn of 

 Making is therefore simpl)' an individual of A'. Kiempferi having purple 

 flowers. But sometimes special colour predominates in special places. 

 In such a case one would incline to distinguish special-coloured one 

 as a distinct variety. The garden form identified by S. Komatsu arc 

 as follows. 



1. Mikawa-murasaki. 



2. Edo-murasaki. 



3. Hoso- mikawa-murasaki. 



4. Tsuno-mikawa-murasaki. 



5. Murasaki-zai. 



6. Akebono-liukiu . 



7. Katsu-iro. 



8. Waka-murasaki. 



9. Gahisan. 



10. Hatsushimo v. Akehono. 



11. Nishikino-mori v. Nishikino-tsukasa. 



12. Asukagawa-shihori. 



13. Hodden. 



var. KaBmpferi, (Planchon) Nakai. 



Rhododendron Keempferi, Planchon I'l. dc Serres IX. (1853) p. 

 79. MiLLAis Rhod. (1918) p. 197. 



R. Sieboldii, Miquel Ann. AIus. Bot. Lugd. Bat. I. p. 33. 



Azalea indica, Tnon Linne) Thunderg F1. Jap. p. 84. 



Rhododendron indicum var. Kivmpferi, Maximowicz Rhod. Asiie 

 orient p. 38. Franchet et Sayatier Enum. Pi. Jaj). I. p. 291. Matsu- 

 mura Ind. PI. Jnp. II. [). 460. 



Folia ovata v. ovato-lanceolata v. obovato-lanceolata v. oblonga. 

 Stamina 5 intcrdum 6-8 papillosa v. fere glabra. Antherae flavescentes. 

 Norn- Jap. Yama-tsutsuji. 



This one may be distinguished into four remarkable forms, but the 

 connective links are found everywhere. 



f. 1- purpureum, Nakai. 



