_Prunus serrulata flore pleno_ Koehne. (Horticultural) =Prunus serrulata shidare-sakura= Koehne. _Mitt. Deutsch. Dendr. Ges._ =18=:170. 1909. _Prunus pseudocerasus hortensis flore carneo suffuso_ Maximowicz. _Bul. Acad. Sci. St. Pétersburg_ =29=:102. _Prunus pseudocerasus shidare-sakura_ Koehne. (Horticultural) 44 × 88? =Prunus affinis= Makino. =Prunus pseudocerasus jamasakura ×n incisa?= Makino. _Tokyo Bot. Mag._ =22=:99. 1908. Japan. =45. Prunus sargentii= Rehder. _Mitt. Deutsch. Dendr. Ges._ =17=:159. 1908. _Prunus puddum_ Miquel. _Ann. Mus. Lugd.-Bat._ =2=:90 (in part, not Wallich) 1865. _Prunus pseudocerasus sachalinensis_ F. Schmidt. _Mém. Acad. Sci. St. Pétersburg sér._ 7, 12: No. 2. 124. _Prunus pseudocerasus spontanea_ Maximowicz. _Bul. Acad. Sci. St. Pétersburg_ =29=:102. _Prunus mume crasseglandulosa_ Miquel. Rijks-Herbarium, Leyden. _Prunus pseudocerasus_ Sargent. _Garden and Forest_ =10=:462, fig. 58 (not Lindley) 1897. _Prunus Sp. Zabel_. Beissner, Schelle & Zabel _Handb. Laubholz-Ben._ 241. 1903. _Prunus pseudocerasus borealis_ Makino. _Tokyo Bot. Mag._ =22=:99. 1908. _Prunus serrulata borealis_ Makino. _l. c._ =23=:75. 1909. _Prunus pseudocerasus spontanea_ Koidzumi. _l. c._ 182. _Prunus jamasakura elegans compta_ Koidzumi. _l. c._ =25=:186. 1911. _Prunus jamasakura borealis_ Koidzumi. l. c. 187. Korea, Saghalin, Japan. =46. Prunus tenuiflora= Koehne. _Plant Wils._ Pt. =2=:209. 1912. Western Hupeh. =47. Prunus wildeniana= Koehne. _l. c._ 249. Hupeh. =48. Prunus leveilleana= Koehne. _l. c._ 250. Korea. =49. Prunus sontagiæ= Koehne. _l. c._ 250. Korea. =50. Prunus mesadenia= Koehne. _l. c._ 250. Nippon. =51. Prunus parvifolia= (Matsumura) Koehne. _l. c._ 251. _Prunus pseudocerasus parvifolia_ Matsumura. _Tokyo Bot. Mag._ =15=:101. 1901. _Prunus pseudocerasus typica parvifolia_ Koidzumi. _l. c._ =23=:182. 1909. _Prunus jamasakura elegans parvifolia_ Koidzumi. _l. c._ =25=:186. 1911. Japan. =Prunus parvifolia aomoriensis= Koehne. _Plant. Wils._ Pt. =2=:251. 1912. Northern Nippon. =52. Prunus concinna= Koehne. _l. c._ 210. Western Hupeh. =53. Prunus twymaniana= Koehne. _l. c._ 211. Western Szechuan. Subsect. 9. CONRADINIA Koehne. =54. Prunus conradinæ= Koehne. _Plant. Wils._ Pt. =2=:211. 1912. Western Hupeh. =55. Prunus helenæ= Koehne. _l. c._ 212. Western Hupeh. =56. Prunus saltuum= Koehne. _l. c._ 213. Western Hupeh. =57. Prunus pauciflora= Bunge._ Mém. Étr. Acad. Sci. St. Pétersburg_ =2=:97 (_Enum. Pl. Chin. Bor._) 1835. Chili. =58. Prunus sprengeri= Pampanini. _Nuov. Giorn. Bot. Ital_. =18=:230. 1911. Hupeh.