ROSACEAE. — PRUNUS 261 



ably P. nipponica Matsumura) by the only slightly emarginate and much smaller 

 petals. 



95. Prunus Miqueliana Maximowicz in Bull. Acad. Sci. St. Pctersbourg, XI. 

 692 (non Schneider) (1883). 



Japan: Nippon, province Senano, a. 1864, Tschonoski. (Maximowicz cites 

 "in silvis subalpinis Nippon, Nikko.") 



There are no indications in the Rijks-Herbarium at Leyden that P. incisa Miqucl 

 belongs here in part, as Maximowicz believed. Prunus Miqueliana is apparently 

 very near P. Tschonoskii, but differs in the very slight pubescence of the calyx 

 and of the much shorter pedicels, in the shorter cupula and more numerous (34) 

 stamens. 



96. Prunus Tschonoskii Koehne, n. sp. 



Prunus ceraseidos Maximowicz in Bull. Acad. Sci. St. Peter shourg, XXIX. 103; 



in M61. Biol. XI. 698 (pro parte) (1883). 

 Prunus apetala, var. iwozana Schneider, III. Handb. Lauhholzk. I. 608 (1906) 

 hue forsan pertinet. 



Rami hornotini dense hirti, demum saepe glabri, annotini glabri, pallide cani, 

 dein cinerei v. nigricantes; gemmae vix 1.5 mm. longae, glabrae. Stipulae 3-7 

 mm. longae, lineares, pectinato-pinnatifidae ; petioU 2-8 mm. longi, dense hirsuti, 

 glandulis 1-2 petioli apici v. laminae basi insertis; lamina versus basin obtusam 

 sensim angustata, obovata v. obovato-oblonga, 3.5-10 cm. longa, 1.5-5 cm. lata, 

 caudata, simpUciter ac hinc inde subduplicato-inciso-crenata, dentibus obtusis 

 cuspidatis, glandula capitata terminatis, supra pilis longiuscuhs accumbentibus 

 obsita, subtus dense longiuscule villosa v. inter nervos glabrior, nervis utrin- 

 secus 6-10. Involucra circa 1 cm. longa; pedunculus 2-11 mm. longus; flores 

 1-3 umbellati, coaetanei foliis simul 3-5.5 cm. longis; bracteae 3-5 mm. longae; 

 pedicelli 22-35 mm. longi, dense v. densiuscule villosiuscuh; cupula 10-12 mm. 

 longa, crasse tubulosa, dense pubescenti-villosiuscula; sepala ovata acuta, 3-4 mm. 

 longa, argute serrulata, extus pilosa; petala rotundata, 7-8 mm. longa, emarginata; 

 stamina circa 25, petalis dimidio breviora, ad 3.5 mm. longa; stylus basi parce 

 villosus. Drupa globosa, 9 mm. diam., nigra (ut videtur); putamen ovatum, 

 6.3:4.5:4 mm., obsoletissime sulcatum. 



Japan: Nippon, province Senano, a. 1864, Tschonoski (as "P. ceraseidos Maxi- 

 mowicz;" other specimens belong to P. nipponica); Niohosan, Nikko, June 14, 

 1901, Yabe; Sanjusan, Nikko, April 12, 1901, Yabe; Nakimusi-Sando, Nikko, 

 June 13, 1901, Yabe (the specimens by Yabe were sent to me as P. apetala). 



97. Pninus apetala (Siebold & Zuccarini) Franchet & Savatier, Enum. PI. 

 Jap. II. 329 (1879), (non Zabel, cf. P. Maximowiczii, No. 9). 



Ceraseidos ' apetala Siebold & Zuccarini in Abh. Akad. Munch. III. 743. t. 5 



(1843). 

 Prunus ceraseidos Maximowicz in Bull. Acad. Sci. St. PStersbourg, XXIX, 103; 

 in Mel. Biol. XI. 698 (pro parte) (1883). 

 As this species is usually confused with others I add here a description drawn 

 from the type specimen in the llijks-IIerbarium at Lej'den. 



Ramuli noveUi glabri, annotini pallide cano-ocliracei, vetustiores fuscescenti- 

 cani ; stipulae 3.5-10 mm. longae, saepe basi pectinato-pinnatifidae, glanduloso- 

 fimbriatae; petioli ad 4 mm. longi (sub anthesi), dense villosi, saepiua 1-2 glandu- 

 losi; lamina obovato-oblonga v. inverse oblonga, 2.8-5.8 cm. longa, 1.5-2.5 cm. 



» Schneider quotes Cerasaidos apetala and Prunus ccrasaidos. 



