1902, 



OBHEBVATIOIiS ON THE FLORA OF JAPAN. 33 



upwards ; veiulets rather loosely reticulated ; petiole semiterete, 8-13 mru. 

 long. Flowers white. 



Hah. Prov. Tosa : Sakawa, cult. {T. Makinol); Prov. Musashi : 

 Tokyo, Bot. Gard. Koishikawa, cult. (T. 31akino\ Feb. 1902), Id. Ushi- 

 gouie, cult. {T. Mahino\ Feb. 1902j. 



This variety differs from the ttjpica and var. aurantiacus, by having 

 tlie uniuterruptedly serrulate, wider, more rigid, and deeper green leaves. 

 That in Curtis's Botanical Magazine, tab. 1552, may be identical with 

 this variety. 



Rhododendron Hymenanthes (Bl.) Makino nom. nov. 



JJymenanthes japonica Bl. Bijdr. p. 862 (182G). 



Mhododendron Metier nicliii Sieb. et Zucc. Fl. Jai). I. (1835) \^. 23. 

 tab. 9, ut in Abhandl. Akad. Muench. IV. 3, (184G) p. 130; DC. Prodr. 

 VII. p. 721 ; Mi(^. in Ann. Mus. Bot. Lugd.-Bat. I. p. 32, et Prol. Fl. 

 Jap. p. 95; A. Gray in Perry's Exped. Jap. p. 315, et Bot. Jap. p. 430; 

 Maxim. Bhod. As. Orient, p. 21; Franch. et Sav. Enum. PI. Jap. I. p. 

 '287 ; Boissieu in Bull. Herb. Boiss. V. p. 916. 



lihododendron maximzim Thunb. Fl. Jap. p. 181, excl. syn,, non Linn. 



SeJcJd nan, vulgo Sakii Nange Koempf. Amren. Exot. p. 877. 



a. heptamerum. 



lihododendron, Meiterniddi «. heptameruvi Maxim. 1. c. ; Makino in 

 Bot. Mag., Tokyo, X. p. 211. 



J{ab. Prov. Tosa: Tadzikawa {T. Makino\ May 1893), Mt. Kurotaki 

 {K. Watanahel Oct. 6, 1891; T. Mcddno\ Nov. 1892); Prov. Iyo : Mt. 

 Ishidzuchi {T. Yoahinagal Aug. 1888);? Prov. Buzen: Mt. Inugadake (li. 

 Yatabe and Z. Matsuviura ! herb So. Coll. Imp. Univ. Tokyo, July 18, 

 1882). 



/9. pentamerum. 



lihododendron Metternicldi ^. jjcntameriwi'M.s.s^im, I.e. p. 22; Makino 

 1. c. 



Hah. Prov. Shimotsuke : Nikko (Herb, ! Sc. Coll. Imp. Univ. Tokyo, 

 June 1878), Mt. Shirane in Nikko {N. Ichikawal herb, ibid, Aug. 17, 

 1887) ; Prov. Musashi : Tokyo, Bot. Gard. Koishikawa, cult. (Herb. ibid. 

 April. 19, 1884; T. Makino\ Apr. 20, 1894); Prov. Izu : Mt. Amagi 

 (A". Watmmhe ! May 25, and Aug. 6, 1897). 



forma angustifolia Makino. 



Leaves denser, angustato-lanceolate, acutish-obtuse, attenuated below, 

 ferrugiaeo-lanate beneath, 4-16 cm. long, |-2 cm. broad. 



