RHAMNACEAE. — HOVENIA 253 



Yunnan: south of Red River from Manmei, A, Henry (No. 9465); j, 

 Szemao, mountains, east, alt. 1600-2000 m., A. Henry (Nos. 12034, 

 12034^). Shantung; "Lau-shan," August 1907, F. N. Meyer 

 (No. 280). 



This is a common tree in western Hupeh and in Szech'uan up to 1000 m. altitude. 

 It is usually from 20 to 25 m. tall, but occasional specimens occur from 30 to 35 

 m. tall. The trunk is free of branches for from 5 to 10 m. and has a girth of from 

 2 to 4 m. ; the bark is grey, longitudinally fissured and persistent. The branches 

 are stout, spreading and ascending-spreading. In the length of the petiole, the 

 degree of dentation of the leaves and of the pubescence on the leaves and branches, 

 this tree shows considerable variation. 



A colloquial name for this tree is " Kuai-tsao " and the thickened pedicels of 

 the fruits are used medicinally by the Chinese to offset the effects of over-indul- 

 gence in wine. 



^ Pictures of this tree will be found under Nos. 100, 498, 078, 0194 of my collec- 

 tion of photographs and in my Vegetation of Western Chinay Nos. 551, 552. 



E. H. W. 



Here may be added some notes on two Chinese genera of Rhamnaceae not 

 collected during the Arnold Arboretum Expeditions. 



VENTILAGO Gaertn. 



VentUago calyculata Tulasne in Ann. Sci. Nat s6t. 4, VIII. 124 (1857). 

 Lawson in Hooker f., FL Brit. Ind. I. 631 (1875). 



;lim 



brownish flowers). 



This specimen agrees very well with Wallich's No. 4268 cited by Tulasne. 

 VentUago calyculata of Pitard (in Lecomte, Fl. Gen. Indo-Chine, I. 912, fig. 115 

 (1^) (1912)) and also of Pierre {FL For. Cochin, pi. 313 C [1894]) may represent 

 V. sulphurea Tulasne, 1. c. 125, as indicated on Pierre's plate. This species 

 is at once distinguished by its obtuse not apiculate anthers. 



GOUANIA L, 



Gouania javanica 



Pitard in Lecomte, 



Ft. G€n. Indo-Chine, I. 932 (1912). 



Yunnan: Feng Chen Lin, mountain, alt. 2800 m., A. Henry (No. 11188; tree 

 2.5 m. tall, yellowish flowers). 



G. javanica appears to be distributed from Java through the Malayan Archipel. 

 to Cochinchina. But there is some doubt, if the Yunnan form belongs to that 

 species or to G. napalenHs Wallich (in Roxburgh, Fl. Ind. II. 417 [1824]), or represents 

 a new species. All the Asiatic species of Gouania need further study. 



