222 JOURNAL OF THE ARNOLD ARBORETUM [vol. v 



Shantung: cultivated (ex Ito, 1. c). 

 Distribution: also cultivated in Japan. 



Prunus serrulate var. pubescens Wilson, C r „_, _ x ,_ 



Hers in Jour. N. China Branch R. As. Soc. liii. 133 (1922); Liste Ess. 



Lign. Honan, 23 (1922). 



Primus tenuiflora of Nebelii Koehne in Bot. Centralbl. xxxvu. abt. n. 136, 

 t. 6 B (1919). 



Shantung: Laushan, 0. Nebel (ex Koehne, 1. c). 



Northern Kiangsu: Liu lin shan, near Hai chow, «/. Hers, no. 666, 

 May 5, 1921; Hai chow hills, alt. about 200 m., Kang Fu Lai, Hers nos. 

 2307, 2317, October 8, 1922. 



Honan: (ex Hers, 1. c). 



Siiensi: Lung chow, Li kia po, alt. 1400 m., J. Hers, no. 2383, July 4, 

 1922. 



Distribution: also Hupeh; Korea, Japan. 



Prunus Dllosiuscula Koehne in Sargent. PI. 



Wilson. I. 202 (1912). 



Honan: Tsi yuan hsien, Tien tan shan, J. Hers, nos. 1775, 1793, 1813 

 and 1891, September 21, 1921; Fu niu shan, J. Hers, no. 141, October 6, 

 1918; Sung hsien, Shih tze miao, alt. 1200 m., J. Hers, nos. 1242 unci 1256, 

 September 25, 1919; Yung ning, Tsi li ping, alt. 1000 m., J. Hers, no. 1349, 

 September 30, 1919; Lu shih, Tang ho, alt. 1000 m., «/. Hers, no. 949, 

 October 11, 1919. 



The specimens cited above, though they are all sterile, agree well in the 

 characters of the leaves, stipules and branchlets with P. pilosiuscula, so 

 that I do not hesitate to refer them to that species even without flowers. 

 They apparently belong to the form distinguished as var. barbata Koehne 

 (1. c.) which differs from typical P. pilosiuscula named var. media by 

 Koehne in the leaves of the flowering branches, being glabrous beneath 



except axillary tufts of hairs. On vigorous shoots, however, the leaves 



are often densely pubescent beneath and oblong-ovate with gradually 



acuminate apex, quite different in shape from the generally obovate 



abruptly acuminate leaves of the flowering branches, but plants of this 



species cultivated at this Arboretum show that this is the usual form of 



vigorous shoots; the tendency toward pubescence on the under side of 



the leaves is noticeable even in some of the co-types of var. barbata which 



have the upper leaves of the elongated branchlets more or less pubescent 

 beneath. 



Prunus Padus Linnaeus, Spec. 473 (1753). — Maximowicz in Mem. 

 Div. Sav. Acad. Sci. St. Petersb. ix. 471 (Ind. Fl. Pekin.) (1859); in Bull. 

 Acad. Sci. St. Petersb. xxix. 108 (1883); in Mel. Biol. xi. 705 (1883).— 

 Franchet in Nouv. Arch. Mus. Paris, ser. 2, v. 258 (PI. David, i. 106) 

 (1883).— Herasley in Jour. Linn. Soc. xxm. 220 (1887).— Diels in Bot. 

 Jahrb. xxxvi. beibl. lxxxii. 57 (1905). — Koehne in Sargent, PI. Wilson. 

 I. 72 (1911). 



