246 WILSON EXPEDITION TO CHINA 



Cerasus Sieholdtii Carri^re in Rev. Hort. 1866, 371. 



Prunus Sieboldii Wittmack in Gartenfl. LI. 272 (1902). 



Prunus psevdocerasus, y serrulata, subvar. Sieholdtii Makino in Tokyo Bat. Mag. 



XXII. 102 (1908)?, excludenda certe var. alhida Makino. 



Prunus serrulata, a serrulata, f. Sieholdtii Makino in Tokyo Bot. Mag. XXIII. 



74 (1909). 

 Prunus pseudocerasus, var. typica, subvar. Sieboldii Koidzumi in Tokyo Bot. 



Mag. XXIII. 182 (1909). 

 P. Pseudocerasus flore rosea plena Hort. ex Koehne. 

 P. Pseudocerasus naden Hort. ex Koehne. 



Known only with double flowers. 



Introduced from China, 1819, by Samuel Brookes (Ker) ; 1822, by Reeves under 

 the name of Yung-to (Lindley) ; from Japan by Fortune, distributed by Standish as 

 Double Japanese Cherry; exhibited by Siebold as Cerasus pseudo Cerasus rosea 

 plena (Carriere). 



Cultivated because of its flowers in the gardens of Chifu, prov. Shantung; near 

 the hill of Nan-shan, April 4, 1898, collected by T. Takagaki (No. 672), as indicated 

 by Matsumurain Tokyo Bot. Mag. XIV. 137 (1900). I have seen cultivated specimens 

 from Japan in Rijks-Herbarium, Leyden, Siehold (designated as P. donarium Sie- 

 bold, flowering twigs, mixed with leafy twigs of P. parvifolia), from Yedo, April 

 14, 1876, Hilgendorf (mixed with P. serrulata). Japanese name, as given by 

 Koidzumi, Yugatzu Sakra. 



Prunus pseudocerasus, forma Watereri Koehne, 1. c. 172 (1909). 

 An Cerasus Wattererii, cited by LavaUee, Icon. Arb. Segrez. 119 (1885), as 



synonym under Cerasus Pseudocerasus? 

 An Cerasus Watereri Goldring in Garden, XXXIII. 416, fig. p. 420 (1888)? 

 An Prunus serrulata, a serrulata, f. Wattererii Makino in Tokyo Bot. Mag. 



XXIII. 75 (1909)? 

 Cultivated in European gardens. 



Prunus pseudocerasus, forma virescens Koehne, n. forma. 

 Prunus donarium Siebold in Rijks-Herbarium, Leyden, (pro parte, rami florentes, 

 mixti cum ramis fohatis P. parvifoliae). 

 Petala circ. 20, ad 9 mm. longa, 6 mm. lata, bilobo-emarginata, viridescentia 

 (secundum v. Siehold); stamina circiter 40, ad 7 mm. longa. 



Japan, v. Siehold. — See also P. serrulata, f. grandiflora Wagner with greenish 

 flowers. 



43. Prunus paracerasus Koehne in Fedde, Rep. Nov. Sp. VII. 133 (1909); in Mitt. 

 Deutsch. Dendr. Ges. XVIII. 170 (1909). 



Introduced from Japan. Spontaneous specimens so far not seen. 



44. Prunus serrulata Lindley in Trans. Hort. Soc. London, VII. 138 (1830). — 

 Koehne in Mitt. Deutsch. Dendr. Ges. XVIII. 166 (1909) cum descriptione fusa. 



Prunus Cerasus, ^ flore simplici Thunberg, Fl. Jap. 201 (1784).i 



Prunus donarium Siebold in Verh. Batav. Genoot. XII. No. I. 68 {Syn. PI. 



Oecon.) (1827), secundum Maximowicz, sed cf. supra sub P. pseudoceraso. 

 Prunus jamasakura Siebold, 1. c. (1827), secundum Lavallee. 

 Cerasus serrulata G. Don in Loudon, Hort. Brit. 480 (1830). 



* According to a photograph of the authentic specimen sent by Professor O. Juel. 



