ENUMERATION OF THE SPECIES 77 



Another spontaneous form is: 



Rhododendron linearifolium var. macrosepalum f . decandrum Wil- 

 son, n. f. 



Japan: Hondo, prov. Kawachi, Yomomoto, roadside, Pine-woods, 

 May 8, 1918, E. H. Wilson (No. 10,355a, type); Ikeda, cultivated, 

 May 8, 1918, E. H. Wilson; prov. Yamato, near Yoshino, dry woods, 

 April 22, 1914, (No. 6574, in part). 



This differs from the type in having 10 stamens; the Ikeda specimens have from 

 6 to 10 stamens and that from Yoshino (a fragment) has 6 only. The typical var, 

 macrosepalum is common round Yomomoto where it is known as the Yama-tsutsuji 

 (Mountain Azalea) and growing with it I found occasional plants with 10 or 

 from 6 to 10 stamens in each flower. I have seen none with from 5 to 10 stamens 

 and I do not remember whether the fragment from near Yoshino came from a 

 bush of the ordinary 5-stamen type. 



An anomalous form is : 



Rhododendron linearifolium var. macrosepalum f. rhodoroides 

 Makino in Tokyo Bot. Mag. XXVII. 109 (1913). 



Rhododendron macrosepalum /3. rhodoroides Maximowicz in Mem. Acad. Set. 

 St. Petersburg, ser. 7, XVI. No. 9, 31 (Rhodod. As. Or.) (1870). Fran- 

 chet & Savatier, Enum. PI. Jap. I. 290 (1875). Matsumura, Ind. PI 

 Jap. II.pt. 2, 463 (1912). Komatsuin Tokyo Bot. Mag. XXXII. [34] (1918). 



Rhododendron ledifolium var. Kochozoroi Komatsu apud Makino in Tokyo 

 Bot. Mag. XXVII. 109 (1913), as a synonym. 



Japan: Hondo, prov. Kawachi, cultivated, Yamomoto and Ikeda, 

 May 8, 19J.8, E. H. Wilson; prov. Musashi, Okbo, cultivated, May 18, 

 1909, K. Onuma; Hatagaya, cultivated, April 29, 1914, E. H. Wilson 

 (No. 6596). 



This is a curious form often seen in Japanese gardens. It has a deeply cleft 

 5-partite corolla only slightly longer than the calyx-lobes, and greenish-white shaded 

 with rose, exserted stamens with pale purple anthers exceeded in length by the 

 style. Maximowicz raised seedlings from this plant and states that in every in- 

 stance they reverted to typical var. macrosepalum. Makino gives " Kocho-zoroi " 

 as the Japanese name of this plant; in the nursery district near Osaka it is known 

 as " Seikan-tsutsuji." 



Another anomalous form is: 



Rhododendron linearifolium var. macrosepalum f. hanaguruma 

 Makino in Tokyo Bot. Mag. XXVII. 109 (1913). 



Rhododendron ledifolium var. leucanthum f. Hanaguruma Komatsu apud 



Makino in Tokyo Bot. Mag. XXVII. 109 (1913), as a synonym. 

 Rhododendron macrosepalum var. Hanaguruma Makino in Tokyo Bot. Mag. 



XXVII. 109 (1913), as a synonym. Komatsu in Tokyo Bot. Mag. XXXII. 



[35] (1918). 

 Rhododendron linearifolium var. macrosepalum f. polypetalum Makino in 



Tokyo Bot. Mag. XXVII. 109 (1913), as a synonym. 



