=Prunus tomentosa endotricha= Koehne. _l. c._ 225. Western Hupeh. =Prunus tomentosa breviflora= Koehne. _l. c._ 270. Northern Shensi. =Prunus tomentosa trichocarpa= (Bunge) Koehne. _Plant. Wils._ =Pt. 2=:270. 1912. _Prunus trichocarpa_ Bunge. _Mém. Étr. Acad. Sci. St. Pétersburg_ =2=:96 (_Enum. Pl. Chin. Bor._) 1833. Northern China. =Prunus tomentosa tsuluensis Koehne.= _Plant. Wils._ Pt. =2=:270. 1912. Northern Shensi. =Prunus tomentosa heteromera Koehne.= _l. c._ 270. Szechuan. =110. Prunus batalinii= (Schneider) Koehne. _l. c._ 270. _Prunus tomentosa_, (?) _Batalinii_ Schneider. Fedde _Rep. Nov. Sp._ =1=:52. 1905. Szechuan. =111. Prunus cinerascens= Franchet. _Nouv. Arch. Mus. Paris._ sér. 2, =8=:216 (_Pl. David._ II. 34) 1885. Western Szechuan. =112. Prunus jacquemontii= (Edgeworth) Hooke. _Fl. Brit. Ind._ =2=:314. 1878. Afghanistan, Northwestern Himalaya, Tibet. =113. Prunus incana= (Pallas) Steven. _Mém. Soc. Nat. Mosc._ =3=:263. 1812. Armenia, Georgia, Himalaya? Cf. =Cerasus hippophaeoides= Bornmüller. _Oester. Bot. Zeit._ =49=:15. 1899. Cappadocia. =114. Prunus griffithii= (Boissier) Schneider. _Ill. Handb. Laubholzk._ =1=:606. 1906. Afghanistan. =115. Prunus prostrata= Labillardière. _Icon. Pl. Syr._ =1=:15, t. 6. 1791. Southern Europe, Crete, Algier, Western Asia to Persia and Syria. Cf. =Prunus bifrons= Fritsch. _Sitz. Akad. Wien_ =101=: pt. 1. 636, t. 3, fig. 1. 1892. Himalaya? =116. Prunus brachypetala= (Boissier) Walpers. _Ann._ =1=:272. 1848-49. Southern Persia. =117. Prunus microcarpa= C. A. Meyer. _Verz. Pfl. Caucas. Casp._ 166. 1831. Caucasia, Northern Persia. Cf. =Cerasus tortuosa= Boissier & Haussknecht. Boissier _Fl. Or._ =2=:647. 1872. Antilibanon, Cappadocia, Kurdistan. =118. Prunus verrucosa= Franchet. _Ann. Sci. Nat. sér._ 6, =16=:280. 1883. Turkestan. Cf. =Prunus calycosus= Aitchison & Hemsley. _Trans. Linn. Soc._ =3=:61, t. 8. 1888. Afghanistan. =119. Prunus diffusa= (Boissier & Haussknecht) Schneider. _Ill. Handb. Laubholzk._ =1=:606. 1906. Southwestern Persia. The geographical distribution of these cherries is most interesting.[5] From North America come but five species of cherries but two of which, _Prunus besseyi_ and _Prunus pumila_, furnish food and these two as yet are but sparingly grown; all five, however, are more or less used as stocks. Greene[6] has described, in addition to the five accepted ones, eleven new species of true cherries from the far west of the type of _Prunus emarginata_, some of which at least have furnished food to the Indians, miners and trappers and may have horticultural possibilities for the desert regions in which they are found either for fruit or as stocks.