9 



138 THE BOTANICAL MAGAZINE. [Vol. xxix. No. 344. 



iFlores pallide rosei, subglomerati, ita pedunculi nulli v. 

 subnulli P. serrulata var. compta. 

 Flores lilacini v. inteusius lilacini, corymbosi, ita pedunculi 

 plus minus elongati P. serrulata v. glabra. 



{Bracteae angustae. Flores praecoces. Styli pilosi...P. yedoensis. 

 Bractese obovatae v. oblongo-obovatae. Styli glabri. Flores 

 eaetanei v. subcaetanei 7. 



IPetala oblonga 1 cm longa. Flores subpraecoces. Pedunculi 

 subnulli P. serrulata v. Sontagias. 

 Petala 1.2—1.7 cm longa, ovata v. oblonga. Flores castanei.,8. 

 jTetioli dense villosi. Pedunculi subnulli v. elongati. 



o| P. serrulata v. tomentella. 



Petioli et pedunculi pilosi v. pubescentes 9. 



-Kami robusti atropurpureo-badi. Pedicelli elongati usque 3 

 cm longi. Petala usque 1.7 cm longa. Lamina glabra. 



P. quclpxrtensis. 



Rami grisei v. griseo-badi v. griseo purpureoque badi. Pedi- 

 celli usque 2 cm longi. Petala usque 1.5 cm longi. Lamina 



infra pilosa 10. 



ir (Pedunculi subnulli v. nulli P. serrulata v. verecunda. 



I Pedunculi plus minus elongati. ...P. serrulata v. pubescens. 



Sp. 5. Prunus densifolia, Kcehxe in Fedde Rep. (1913) p. 135. 

 P. angustissima, Xakai in Sched. ined. 

 Hab. in silvis Ouelpaert. rara. 

 Planta endemica ! 



Sp. i). Prunus sachalinensis (Schmidt) Koidz. in Tokyo Bot. 

 Mag. XX VI (1912) p. 52. 

 P. pseudocerasus var. sachalinensis, Fr. Schmidt Sachal. 



(1868) p. 142. 

 P. pseudocerasus «. spontanea, Max. in Mel. Biol. XI. p. 



699. p.p. 

 P. pseudocerasus, Sarg. in Gard. Forest. X. p. 462. f. 58. 



Stapf in Bot. Mag. t. 8012. 

 P. pseudocerasus ft. borealis, Makixo in Tokyo Bot. Mag. 



XXII (1908) p. 99. 



