ULMACEAE. — TREMA 289 



2536; with flowers); same locality, in Namsan, July 1906, U. Faurie (No. 903; 

 with fruits); Ping-yang, September 18, 1905, J. G. Jack (with fruits). 



This species is easily distinguished from every Zelkova by its spinescent branch- 

 lets and winged fruits. It represents a distinct genus which, according to Priemer, 

 also differs widely from Zelkova in its anatomical characters. 



TREMA Lour. 

 Trema virgata Blume, Mus. Bot. Lugd.-Bat. II. 59 (1852). 



CelHs virgata Roxburgh apud Walhch, Cat. No. 3694 (nomen nudum) (1828), 

 fide Planchon. 



Sponia virgata Planchon in Ann. Sci. Nat. ser. 3, X. 316 (1848) ; in De Candolle, 

 Prodr. XVII. 195 (exclud. var.) (1873). 



Sponia timorensis Kurz in Flora, LV. 447 (1872), ut videtur tantum pro parte; 

 an Decaisne?. — Maximowicz in Bull. Acad. Sci. St. Petersbourg, XVIII. 

 295 (1873); in Mel. Biol. IX. 29 (1873). 



Trema timorensis Hemsley in Jour. Linn. Sac. XXVI. 452 (pro parte; an Plan- 

 chon?) (1894). — E. Pritzel in Bot. Jahrb. XXIX. 297 (1900). 



Western Szech'uan: near Wa-shan, thickets, alt. 900-1200 m., 

 July 1908 (No. 2812; bush 1.5 m. tall, flowers greenish). Western 

 Hupeh: Changyang Hsien, A. Henry (No. 7170). Hainan: with- 

 out precise locality, A. Henry (No. 8559). Yunnan: Mengtsze, 

 alt. 1300 m., A. Henry (No. 10011; tree 10 m. tall). 



This species seems to be well characterized by its small narrow lanceolate leaves. 

 Most authors refer it to Trema timorensis Blume, Mus. Bot. Lugd.-Bat. II. 60 

 (1852. — Sponia timorensis Decaisne in Nouv. Ann. Mus. Paris, III. 498 [Herb. 

 Timor. Descr.] [1834]), but as I have been unable to see more material I think it 

 best to keep T. virgata separate. 



Trema spec, (verisim. spec. nova). 



Trema timorensis Hemsley in Jour. Linn. Soc. XXVI. 452 (non Blume) (1894), 

 quoad specimen Henryii, No. 6210. 



Kiangsi: Kuling, roadsides, common, August 1, 1907, alt. 900 m. 

 (No. 1586; bush 0.6-1.2 m. tall). Hupeh: Patung, A. Henry (No. 

 6210). 



This is the form mentioned by Hemsley with " thicker, rougher, pubescent 

 leaves." Both Wilson's and Henry's specimens are much alike, but in No. 6210 the 

 petioles are somewhat longer. Without having seen mature leaves and fruits, it is 

 very difficult to decide whether these plants represent a new species or may be 

 referred to one of the many species already known. It is certainly very different 

 from T. virgata, the leaves measuring from 7 to 11 cm. in length and from 2.5 to 

 4.5 cm. in width. 



