242 WILSON EXPEDITION TO CHINA 



petiolis distinctius pilosis, fructibus stipitibus quam perigonium 

 subduplo longioribus suffultis. 



Western Szech'uan: Wa-shan, woods, alt. 2200 m., July 1908 

 (No. 820, type; tree 17 m. tall, girth 1.8 m.; with ripe fruits and good 

 leaves); near Wa-shan, roadside, alt. 1600 m., September 9, 1908 (No. 

 1423; tree 27 m. tall, girth 2.4 m.; sterile, leaves very rough on both 

 sides, up to 15.5 cm. long and 7 cm. broad) ; southeast of Tachien-lu, 

 alt. 2400 m., woods, October 1910 (No. 4360; tree 8-10 m. tall, girth 

 0.6 m.; sterile, leaves very rough, but a little more glabrous beneath). 



This seems to be a distinct variety, and it may even represent a species. The 

 young twigs are glabrous, and the winter-buds are glabrous or sUghtly hairy. The 

 shape of the leaves is scarcely different from that of the type, the compound 

 serration being very similar. The main teeth usually possess 3-4 small, rather 

 sharp secondary teeth. The most distinct character is found in the fruit, which, on 

 account of its long stipe, much resembles that of U. Brandisiana Schneider. 



This tree is not common, but is found scattered over a wide area in western 

 Szech'uan. In habit and in general appearance it differs in no way from the type 

 species. It is in cultivation in this Arboretum from living material I sent in 1908 

 under No. 1423. 



A picture will be found under No. 349 of the collection of my photographs and 

 also in my Vegetation of Western China, No. 492. E. H. W. 



Ulmuspumila Linnaeus, S-pec. 226 (1753), exclud. synon. Plukenet. — 

 Pallas, Fl. Ross. I. 76, t. 48, fig. A, C, E (1784), exclud. plantas e Ros- 

 sia et forma suberosa e Sibiria.^ — Alton, Hort Kew, I. 320 (1789). — 

 Willdenow, Berlin Baumz. 395 (1796); Spec. I. pt. 2, 1326 (1798), 

 exclud. synon. pro parte. — Persoon, Syn. I. 291 (1805). — Plan- 

 chon in Ann. Sci. Nat. ser. 3, X. 271 (1848) ; in De Candolle, Prodr. 

 XVII. 159 (1873). — Turczaninow in Bull. Soc. Nat. Mosc. XXVII. 

 368 (1854), exclud. var. 13; Fl. Baical-Dahur. 95 (1856), exclud. var. 

 /3. — Maack & Ruprecht in Bull. Phys.-Math. Acad. Sci. St. Peters- 

 hourg, XV. 375 (1857); in Mel. Biol. II. 556 (1858). — Trautvetter in 

 Mem. Sav. Etr. Acad. Sci. St. Petershourg, IX. 248 (Maximowicz, 

 Prim. Fl. Amur.) (1859). — Franchet in Nouv. Arch. Mus. Paris, ser. 

 2, VII. 78 (PI. David. I. 268) (1884). — Dippel, Handh. Lauhholzk. II. 

 27 (1892). — Koehne, Deutsche Dendr. 135 (1893). — Palibin in Act 

 Hort. Petrop. XIV. 139 (1895). — Mouillefert, Traite Arh. Arbriss. II. 



1 Pallas includes three different forms. His "A. C/Zmus pumiZaRossiaeaustralis," 

 t. 48, fig. D, E is f/. /oZiacea Gilibert; " B. [7/mt<s pitmiZo transbaicalensis" repre- 

 sents the true U. pumila with exception of the branch with corky wings (fig. B), 

 which apparently belongs to U. japonica, var. levigata Schneider. Pallas did not 

 describe a variety transbaicalensis, as Henry, 1. c, cites, for " transbaicalensis " is not 

 printed in itahcs and is used only as a geographical term. 



