ENUMERATION OF THE SPECIES 73 



Japan: Kyushu, prov. Hizen, Nagasaki, common in gardens, 

 March 19, 1914, E. H. Wilson (No. 6316); prov. Chikugo, Kurume, 

 cultivated, May 3, 1918, E. H. Wilson. 



Cultivated: Garden of Butler Plantation, West Feliciana Parish, 



Louisiana, March 28, 1910, C. S. Sargent. 



I have examined the type of Makino's R. ripense and can find no character by 

 which it differs from R. mucronatum G. Don, except in the rose-purple color of its 

 flowers, and as is well known a branch bearing colored flowers is often found in 

 Don's species. Nevertheless, Makino's discovery is most interesting since it 

 enables us to place definitely the habitat and parentage of R. mucronatum G. Don 

 which has remained obscure for over a century and a half. Makino gives two 

 localities and says that it is found wild by the side of rivers in Tosa and Iyo prov- 

 inces in Shikoku, and also that it is frequently cultivated. I have seen it only 

 as a cultivated plant in Japan where it is not by any means such a general favorite 

 as the pure white form. I saw more plants round Nagasaki than elsewhere. At 

 Kurume it is known as the " Momo-iro-yodogawa." Makino gives the vernacular 

 name in Tosa province as " Iso-tsutsuji." 



There is in cultivation in this country an intermediate and very 

 lovely form in which the corolla is white, delicately flushed with pale 

 lilac-purple and has a few very faint rose-pink spots. As a garden 

 plant it is distinct and desirable and it may be called: — 



R. mucronatum f. amethystinum Wilson, n. f. 



Cultivated: Hort. Farquhar & Co., Boston, Mass., April 1, 1909, 

 (type). Hort. Andorra Nurseries, Chestnut Hill, Philadelphia, Pa., 

 May 20, 1920, as Azalea japonica dlha. 



Rhododendron mucronatum f. plenum Wilson, n. comb. 



Azalea indica var. p. plena Sims in Bot. Mag. LI. t. 2509 (1824). 



Azalea indica y. purpurea Sweet, Hort. Brit. 264 (1827). 



Azalea prolifera Poiteau in Annal. de From. 1. 104 (1829). 



Rhododendron phoeniceum var. /3. flore pleno G. Don, Gen. Syst. III. 846 (1834). 



Azalea purpurea pleno Hovey, Mag. Hort. V. 115 (1839). 



Rhododendron indicum f. incarnatum De Candolle, Prodr. 726 (1839). 



Rhododendron ledifolium y. narcissiflorum Maximowicz in Mem. Acad. Sci. 



St. Petersbourg, ser. 7, XVI. No. 9, 36 (Rhodod. As. Or.) (1870), in part. 

 Rhododendron ledifolium var. plena purpurea Regel in Gartenfl. XXXV. 565, 



t. 1233, fig. c-d (1886). 

 Azalea indica purpurea plena Bretschneider, Hist. European Bot. Disc. Chin. 



222 (1898). 

 Rhododendron rosmarinifolium i. narcissiflorum 0. Fujimanyo Komatsu in 



Tokyo Bot. Mag. XXXII. [36] (1918). 



Japan : Hondo, prov. Kawachi, Ikeda, cultivated, May 8, 1918, 



E. H. Wilson. 



Cultivated: Hort. Holm Lea, Brookline, Mass. 



Round Tokyo and Yokohama this plant is known as Fujimanyo; round Osaka 

 it is the Murasaki-botan-tsutsuji (purple Paeony Azalea). It is an old plant even 



