104 
Judging from the description, C. morrisonense, Hayata seems to 
be closely allied to C. arvense, from the narrow-leaved form of 
which this plant is distinguished by having larger flowers with 
more deeply bilobed petals. 
Maximowiez and Williams suppose that plate 30 of Sémoku 
Dzusetsu, vol. viii. represents C. arvense, Linn. The plant there 
figured is however Moehringia lateriflora, so that C. arvense can- 
not be reckoned a native of Japan. 
C. schizopetalum, Maxim. is a very distinct species with 4-lobed 
petals. This is distributed in the alpine region of the high moun- 
tains of Central Japan. 
Consequently the eleven species enumerated above should be 
reduced to seven. I add to them one new species and another one 
which is new to the Flora of Japan. The following enumeration 
comprises all the Cerasiia known to me at present. 
Enumeratio specierum mihi notarum. 
1, C, pilosum, Ledeb. in Mém. Acad. Se. St. Petersb. v, p. 539.— 
Bunge, in Ledeb. Fl. Alt. ii., p. 178.—Fenzl., in Ledeb. F1. Ross. 
i, p. 398.—Turez. FI, Brin Deke i, p. 240.—Regel, Tentam. FI. 
Ussur. no. 95; Pl. Radd. i, p. 427.—Maxim. in Bull. Acad. Imp. 
Sc. St. Petersb. xviii., p. 385.—Komar. Fl. Ross. ii, p. 181. 
Syn. C. Ledebourianum, Ser. in DC, Prodr. i., p. 420. 
Var, amurense, Regel, Pl. Radd. i., p. 428 
Syn. C. alpinum var, Fischerianum, Maxim, 1.c. p. 386, tamen 
quoad F erasy Japonicam nec non pl. ex. St. Olga.— Williams, in 
Bull. Herb. Boiss. vii. (1899), p. 130, pro parte non Regel nec Torr. 
et Gr. 
C. oxalidiplorum, Makino, in Tékyé Bot. Mag. xix. (1905), p- 
102, 
Hab. Alpine pastures, prov. Shinano, T'schonoske, 1864 ; Mount 
Morrison ? ex B. Hayata. 
2. C. triviale, Link, Enum. Hort. Berol. i., p. 433. 
Var. glandulosum, Koch, Syn. F. Germ. et Helv. ed. 1., p. 122, 
ed, 2, p. 134.— Williams, l.c. p. 132. _ 
