116 WILSON EXPEDITION TO CHINA 



ber 1907 (No. 392"); Wushan Hsien, thin oak woods, alt. 1800 m., 

 September 1907 (No. 221). Western Szech'uan: Wa-ssu country, 

 Wen-chuan Hsien, thickets, alt. 2100 m., July 1908 (No. 1806) ; Octo- 

 ber 1910 (No. 4150). Chekiang: Ningpo, D. Macgregor (Herb. 

 Arnold Arboretum). ^ 



Sect. OPULUS De Candolle 



Viburnum Sargentii Koehne in Gartenfl. XLVIII. 341 (1899).— 

 Rehder in Sargent, Trees and Shrubs, I. 83, t. 42 (1908). 



Western Hupeh: Fang Hsien, thickets, alt. 1800-2400 m., July 

 and October 1907 (No. 281, in part); Hsing-shan Hsien, thickets, June 

 1907 (No. 281, in part). 



The specimen from Hsing-shan Hsien (in bud) represents the typical form, 

 while those from Fang Hsien (flower and fruits) represent the var. calvescens Rehder. 



Viburnum kansuense Batalin in Act Hort. Petrop. XIII. 372 (1894). 



Western Szech'uan: around Tachien-lu, thickets, rare, alt. 

 1500-2250 m., June and October 1908 (No. 859, in part); Sungpan, 

 thickets, alt. 2400-2800 m., September 1910 (No. 859, in part). 



The mature fruits, which have not yet been described, present a peculiar varia- 

 tion; they are bright red and on part of the specimens subglobose and 1 cm. long, 

 on the other specimens oblong and 1.5 cm. long; the stone is much flattened, marked 

 with five longitudinal Hues and with scarcely noticeable ribs, ovoid and 8 mm. long 

 and 5 mm. broad, or oblong and 12 mm. long and 6 mm. broad in the large-fruited 

 specimens. 



TRIOSTEUM L.2 



Triosteum Fargesii Franchet in Jour, de Bot. X. 319 (1896). 



Western Hupeh: Hsing-shan Hsien, woodlands, alt. 1800-2300 

 m.. May 29 and August 1907 (No. 199); Fang Hsien, uplands, alt. 

 2100-2700 m., June and October 1910 (Nos. 4489, 4456). 



The fruits are white according to Wilson. 



1 An interesting addition to the Viburnums of China proper is the following 

 species hitherto only known from Formosa. 



Viburnum luzonicum Rolfe, var. formosanum (Hance) Rehder in Sargent, Trees 

 and Shrubs, II. 97 (1908). 



Fokien: without locality, S. T. Dunn, 1905 (Herb. Hongkong Bot. Gard., No. 

 2763 in Herb. Arnold Arboretum). 



The specimen from Fokien differs slightly from the Formosa plant in the stamens 

 being as long as the corolla lobes. 



^ Though Triosteum contains no woody species, it may find a place here to make 

 the enumeration of the Chinese CaprifoUaceae collected by Wilson complete. 



