ROSACEAE. PRUNUS 69 



Prunus bicolor Koehne, n. sp. 



Ramuli novelli nigricantes, densissime puberulo-velutini, vetusti- 

 ores vix glabrati lenticellis pallidis; gemmae 3.5-8 mm. longae, pallide 

 fuscae, glabrae. Petioli 15-25 mm. longi, superiore pagina pulveru- 

 lento-puberuli, eglandulosi; lamina e basi rotundata v. subcordata 

 obovato-oblonga (5.3-9.8 cm. longa 2.5-4.5 cm. lata), leviter breviter 

 acuminata apice obtusiuscula valide mucronata, minutim serrata 

 dentibus angustissimis porrectis v. subincurvis, supra in costa pul- 

 verulenta ceterum glabra, subtus glaberrima, supra intense viridis 

 reticulo subimpresso, subtus manifeste albicans, costa nervisque ochra- 

 ceis reticulo nigrescente maxime manifesto, sub microscopio circa 

 stomata subpapillosa papillis scabridis. Racemi erecto-patentes, 

 absque pedunculo foliato 13 cm. longi, pulverulento-velutini; pedicelli 

 2-4.5 mm. longi. Flores ignoti. Cupulae basis sub fructu persistens, 

 intus glaberrima. Fructus ut videtur 5-6 mm. diam.; putamen 4.3 

 mm. longum, 4 mm. diam., carinatum, obsoletissime rugosum. 



Western Szech'uan: Tachien-lu, woods, alt. 1800 m., Septem- 

 ber 1908 (No. 977, as to fruiting branches; the flowering branches 

 belong to P. obtusata.) . 



Prunus velutina Batalin in Act. Hort. Petrop. XIV. 186 (1895.) 



Padus velutina C. K. Schneider in Fedde, Rep. Nov. Sp. I. 69 (1905); III. 

 Handb. Laubholzk. I. 638 (1906). 



Western Hupeh: north and south of Ichang, woodland, alt. 900- 

 1800 m., May and September 1907 (No. 2840); without locality, 1901 

 (Veitch Exped. No. 1789); A. Henry (No. 5774). Northern Shensi : 

 G. Giraldi (No. 4931). 



Prunus Grayana Maximo wicz in Bull. Acad. Sci. St. Peter sbourg, 

 XXIX. 107 (1884); in Mel. Biol. XI. 704 (1883). 



Prunus Padus, var. japonica Miquel in Ann. Mus. Lugd.-Bat. II. 92 (1865)' 

 Padus Grayana C. K. Schneider, III. Handb. Laubholzk. I. 640 (1906). 

 Padus acrophylla C. K. Schneider in Fedde, Rep. Nov. Sp. I. 70 (1905); III. 

 Handl . Laubholzk. 1. 640 (1906.) (Forsan ex descriptione hue etiam ducenda, 

 quamvis cupulae basis sub fructu persistens ab autore dicatur pilosa.) 



Petioli 5-13 mm. longi, eglandulosi; glandulae 1-3 marginales la- 

 minae dentibus infimis subtus insidentes, complanatae; folia e basi 

 rotundata v. vix subcordata late oblonga v. obovato-oblonga v. ovata, 

 caudato-acuminata, argutissime serrata dentibus tenuissime acumi- 

 natis, subtus epapillosa. Pedicelli 2-13 mm. longi; cupula intus 

 glaberrima; sepala integra, interdum margine parce glandulifera, ten- 



