ULMACEAE. — PTEROCELTIS 285 



with ripe fruits); same locality, May 1907 (No. 268*; with young 

 fruits); same locality, mountains, riversides, very rare, May 1901 

 (Veitch Exped. No. 1875; tree 10 m. tall; with young fruits). East- 

 ern Szech'uan: " Tchen-k6ou-tin," P. Farges (with d" flowers and 

 also with young and ripe fruits). Western Szech'uan: near 

 Wa-shan, Tung River valley, roadside, alt. 600 m., September 21, 1908 

 (No. 3215; tree 13 m. tall, girth 1.8 m.; with ripe fruits). Northern 

 Shensi: " Lao-y-san (Zu-lu)," September 6, 1887, G. Giraldi (with 

 ripe fruits). Chili : Peking, " in horto ecclesiae rossicae Pekini insti- 

 tutae," June 1847, A. Tatarinow (type, ex Maximowicz). Shantung : 

 Su-yung, September 25, 1907, F. N. Meyer (large tree having a scaly 

 whitish bark and small leaves) ; Lung-tung, September 25, 1907, F. N. 

 Meyer (No. 247; sterile, leaves coarsely serrate, up to 12 cm. long 

 and 7 cm. wide). Kweichou: " Gan-Chouen, bois," May 1910, J. 

 Cavalerie (No. 3784, type of Ulmus Cavaleriei; with fruits). 



A very distinct genus of which Maximowicz described only the d^ flowers and 

 fruits. I add the following description of the 9 flowers from Wilson's No. 255": 

 flores 9 in axillis foliorum ramulorum brevium novellorum mense Martii v. Aprili 

 singuli, pedicello distincto sparse piloso suffulti; perigonia lobia 4 liberis lanceo- 

 latis viridescentibus plus minusve (praesertim apice) pilosis ovario (stigmatibus 

 exclusis) vix longioribus; ovaria sessiha, elliptico-rotunda, latere compressa, in facie 

 sparse pilosa, stigmatibus 2 lanceolatis plus minusve divaricatis paulo brevioribus 

 coronata. 



The ripe fruits of the type of Ulmus Cavaleriei Leveill^ are distinctly pilose 

 upon the seed, while they are wholly glabrous in the other specimens before me. 

 Further investigation is needed to decide if the form from Kweichou represents 

 a distinct variety. 



As far as I have been able to observe this is everywhere a rare tree, but it is to be 

 found here and there at low altitudes in western Hupeh and throughout Szech'uan. 

 It is usually found near streams and is partial to rocky places in warm vallej's. 

 Some 5 miles above Ichang, by the side of the Yangtsze River and near the entrance 

 to San-yu-tung Glen there is a fine old specimen about 16 m. tall, with a short 

 gnarled trunk 5 m. in girth and much branched to form a wide-spreading crown. 

 As it usually appears it is a tree from 12 to 15 cm. tall with a short trunk from 1.5 

 to 2.5 m. in girth, and divided near the base'm^ several ascending and spreading 

 stems which branch to form a wide-spreading flattened-round head. The bark is 

 pale gray and peels off in elongated flakes of very irregular shape, and is very 

 characteristic. 



Pictures of this tree will be found under Nos. 34, 368 and 469 of the collection of 

 my photographs and also in my Vegetation of Western China, Nos. 419, 420, 421. 



E. H. W. 



