Observations on the Flora of Japan. 



{Continued from p. 82.) 



By 



T. M a kino. 



Lecturer of Botany in the Science College, 

 Lnperkd Vnivers'ty of Tokyo. 



Prunus serrulata Lindl. In Trans. Hort. Soc. VII. (1830), 

 p. 238 ; Walp. Repert. II. p. 8. 



var. albida Makino. (Fig. IX.) 



subvar. a. hortualis Makino. 



Prunus pseudo-Cerasus var. y. serrulata subvar. h. Sieholdi 

 forma albida Makino in Bot. Mag., Tokyo, XXII. (1908), p. 

 102. 



Prunus serrulata a. serrulata forma albida Makino, 1. c. 

 XXIII. (1909), p. 74. 



Tree; branchlets terete, glabrous, rufescent-castaneous, thinly 

 dispersed with small punctiform lenticels ; young one glabrous. 

 Young leaves in flowering time tufted, protected with perul^ at 

 the base, long-petiolate, obovato-elliptical or elliptical, caudato- 

 acuminate, duplicately and simply setaceo-serrulate, shining, viri- 

 descent and thinly shaded with purple above, glabrous ; veins 

 parallel and prominent beneath ; stipule angustato-linear, acumi- 

 nate, longer than the petiole, simple, loosely glanduloso-ciliated, 

 viridescent. Ferulae (of bud) imbricated, deciduous after flower 

 or in flower ; the exterior ones badio-brick-coloured, thinly 

 crustaceous, rounded at the apex, the lower ones smallest and 

 semiorbicular, the upper ones gradually larger and rounded to 

 oval, densely puberulent under the apex internally, ciliated on 

 the upper margin in the inner ones ; the interior ones larger, 

 erect-patent or spreading, herbaceous, obovato-spathulate, 

 glanduloso-ciliated, pubescent internally, viridescent but albes- 

 cent at the base, usually tinged with reddish-purple above ex- 

 ternally, 8-18 mm. long, 6-10 mm. broad, the inner ones often 



