ULMACEAE. — ZELKOVA 287 



bescence, especially on the veins, beneath; the serration is somewhat pointed as. 

 in Z. serrata. Meyer also collected what is apparently the same form near Soochow 

 in Kiangsu, April 26, 1908 (No. 342), of which he sent seeds to the Department of 

 Agriculture in Washington. From these seeds are growing young plants under 

 No. 22985 (in part, mixed with Ulrnus parvifoKa Jacquin) in Chico, California. 

 Sterile specimens of these plants before me show the same firm leaves with a 

 more or less dense grayish pubescence beneath. The serration is the same as in 

 Meyer's No. 1444 or even sharper. All these plants apparently represent a dis- 

 tinct new species which may be distinguished by its firmer leaves, which are more 

 or less pubescent beneath at least when young and have a more incumbent 

 shorter serration. 



This is a rare tree in the parts of China where I have collected, and is only 

 known to me from one locality near the town of Hsing-shan Hsien, where there are 

 several trees from 6 to 16 m. tall, with trunks from 0.5 to 2 m. in girth. The 

 bark is smooth and pale gray, and exfoliates in small, thin roundish flake.s leaving 

 behind brown scars. E. H. W. 



Here may be added the other species from eastern Asia, with which Z. sinica 

 has been confused by previous authors. 



Zelkova serrata Makino in Tokyo Bot. Mag. XVII. 13 (1903). 



Corchorus hirtus Thunberg, Fl. Jap. 228 (non Linnaeus) (1784). 



Corchorus serratus Thunberg in Trans. Linn. Soc. II. 335 (1794). 



UlmusKeaki Siebold in Verh. Bat. Gemot. XII. 28 {Syn. PI. Oec. Jap.) (1830). 



Planera acuminata Lindley in Gard. Chron. 1862, 428. — Regel in Gartenfi. 

 XII. 56 (1863). 



Planera Kaki Kirchner in Petzold & Kirchner, Arb. Muse. 567 (1864). 



Planera japonica Miquel in Ann. Mus. Lugd.-Bat. III. 66 (1867); Prol. Fl. 

 Jap. 254 (1867). 



Planera Keaki K. Koch, Dendr. II. pt. 1, 427 (1872). — Graebener in Gartenfi. 

 XXXVII. 21, fig. 6-8 (1888). 



Zelkova acuminata Planchon in Compt. Rend. Acad. Paris, LXXIV. 1496 

 (1872), fide Maximowicz; in De Candolle, Prodr. XVII. 166 (1873). — 

 Hemsley in Jour. Linn. Soc. XXVI. 449 (1894). — Shirasawa in Bull. 

 Agric. Coll. Tokyo, II. 267, t. 13, fig. 14 {Jap. Laubh. Winttr. t. 9, fig. 14) 

 (1895); Icon. Ess. For. Jap. I. 65, t. 36, fig. 1-17 (1900). — Mouillefert, 

 Traits Arb. Arbriss. II. 1206 (1898). — Pahbin in Act. Hort. Pctrop. XVIII. 

 190 {Consp. Fl. Kor. II. 44) (1900). — Henry in Elwes & Henry, Trees Great 

 Brit. & Irel. IV. 920, t. 267, fig. 7 (1909). — Bean, Trees & Shrubs Brit. Isl. 

 II. 693 (1914). 



Zelkova Keaki Maximowicz in Bull. Acad. Sci. St. Petersbourg, XVIII. 288 

 (1873); in Mel. Biol. IX. 21 (1873). — Franchet & Savatier, Enum. PL 

 Jap. 1.430(1875). — Mayr, Aus Wald. Jap.2,2, 48 (1891); Frcmdl. Wald- 

 und Parkbdmne, 525, fig. 246-249 (1906).— Dippel, Handb. Laubholzk. II. 

 40, fig. 15 (1892).— Sargent in Garden & Forest, VI. 323, fig. 49 (1893); 

 Forest Fl. Jap. 58, t. 19 (1894). — Koehnc, Deutsche Dendr. 137 (1893).— 

 Nakai in Jour. Coll. Sci. Tokyo, XXXI. 188 {Fl. Kor. II.) (1911). 



Abelicea acuminata O. Kuntze, Rev. Gen. PI. II. 621 (1891). 



Abelicea Keaki Schneider, Dendr. Winterst. 238, fig. 166 e-g (1903). 



Abelicea hirta Schneider, III. Handb. Laubholzk. I. 226, fig. 143-144 (1904). 



Zelkova hirta Schneider, 1. c. 806 (1906). 



NORTHEASTERN ASIA. Mandshuria: Mukden, March 11, 1913, F. N. 

 Meyer (No. 1796"; very useful timber; cultivated in Yarrow Plant. Intro. Field 



