=Prunus japonica eujaponica= Koehne. _Plant. Wils._ Pt. =2=:266. 1912. =Prunus japonica eujaponica fauriei= Koehne. _l. c._ 266. Japan. =Prunus japonica eujaponica oldhamii= Koehne. _l. c._ 266. Hupeh. =Prunus japonica gracillima= Koehne. _l. c._ 266. =Prunus japonica gracillima thunbergii= Koehne. _l. c._ 266. _Prunus japonica thunbergii_ Koehne. Fedde _Rep. Nov. Sp._ =8=:23. 1910. Cultivated in the Späth Arboretum near Berlin, received from St. Petersburg. =Prunus japonica gracillima engleri= Koehne. _Plant. Wils._ Pt. =2=:266. 1912. _Prunus japonica engleri_ Koehne. _l. c._ 266. Manchuria. =Prunus japonica gracillima minor= Koehne. _l. c._ 267. Cultivated in the Späth Arboretum, Berlin. =Prunus japonica gracillima sphaerica= (Carrière) Koehne. _l. c._ 267. _Prunus japonica sphaerica_ Carrière. _Rev. Hort._ 468, fig. 163. 1890. =Prunus japonica kerii= (Steudel) Koehne. _Plant. Wils._ =Pt. 2=:267. 1912. _Prunus japonica_ Ker-Gawler. _Bot. Reg._= 1=: t. 27. 1815. _Amygdalus pumila_ Sims. _Bot. Mag._ =47=: t. 2176. 1820. _Prunus kerii_ Steudel. _Nomencl. Bot._ ed. 2, 403. 1841, which cites "_Cerasus" japonica_ Ker-Gawler. _Prunus japonica typica flore pleno_ Zabel. Beissner, Schelle & Zabel _Handb. Laubholz-Ben._ 238. 1903. Chekiang. Cultivated in England. ? =Prunus praecox= Carrière. _Rev. Hort._ 488, fig. 142, 143. 1892. Originated from sowings of _Prunus japonica sphaerica_ and supposed to be _Prunus japonica_ × _domestica._ =107. Prunus nakaii= Léveillé. Fedde _Rep. Nov. Sp._ =7=:198. 1909. Korea. =108. Prunus carcharias= Koehne. _Plant. Wils._ Pt. =2=:267. 1912. Szechuan. Sect. 2. =AMYGDALOCERASUS= Koehne. _Cerasus_ sect. _Microcerasus_ Spach. _Microcerasus_ Webb. _Phytogr. Canar._ =2=:19 (1836-50); Schneider _Ill. Handb. Laubholzk._ =1=:601. 1906. _Prunus_ subgen. _Microcerasus_ Focke. Engler & Prantl _Natürl. Pflanzenfam._ =3=:3, 54. 1888. _Prunus_ sect. _Trichocerasus_ et subgen. _Microcerasus_ Koehne. _Deutsche Dendr._ 302, 306. 1893. =109. Prunus tomentosa= Thunberg. _Fl. Jap._ 203. 1784.--Siebold & Zuccarini _Fl. Jap._ =1=:51, t. 22. 1826. Japan, western and northern China. =Prunus tomentosa spaethiana= Koehne. _Plant. Wils._ =Pt. 2=:269. 1912. Cultivated in European gardens. =Prunus tomentosa graebneriana= Koehne. _l. c._ 269. Cultivated near the Botanic Garden, Berlin-Dahlem. =Prunus tomentosa insularis= Koehne. _l. c._ 269. Japan. Cultivated in Japan. =Prunus tomentosa souliei= Koehne. _l. c._ 269. Szechuan. =Prunus tomentosa kashkarovii= Koehne. _l. c._ 269. Tibet.