92 WILSON EXPEDITION TO CHINA 



Acer trifidum, var. ningpoense Hance in Jour. Bot. XL 168 (1873). 

 Kiangsi: Kiukiang Plain (at one place only), alt. 100 m., August 2, 

 1907 (No. 1503). 



Sect. INTEGRIFOLIA Pax * 



Acer oblongum Wallich apud De Candolle, Prodr. I. 593 (1824). 



Western Hup eh: Ichang, around temples, alt. 30-300 m., August 

 and October 1907 (No. 257); Fang Hsien, around houses, alt. 600- 

 900 m., July 1907 (No. 1929, in part); Chang-yang Hsien, roadsides^ 

 alt. 300-900 m. (No. 1929, in part). 



Acer oblongum, var. latialatum Pax in Engler, Pflanzenreich, Heft 8 

 (IV. 163), 31 (1903). 



Western Hupeh: Hsing-shan Hsien, alt. 300-900 m., May and 

 October 1907 (No. 376, in part); Ichang, alt. 30-900 m., May and 

 September 1907 (No. 376, in part). 



Acer laevigatum Wallich, PL As. Ear. II. 3, t. 104 (1831). 



Western Hupeh: Chang-lo Hsien, alt. 300-900 m., July and 

 September 1907 (No. 1924). Western Szech'uan: near Ya-chou, 

 alt. 600-900 m., May, June, and September 1908 (No. 979). 



Acer Fargesii Franchet apud Rehder in Sargent, Trees and Shrubs, 

 I. 180 (1905). 



Western Hupeh: Chang-lo Hsien, thickets, alt. 900-1200 m., 

 May 1907 (No. 1937). 



Sect. MACRANTHA Pax, emend. 2 



Acer Davidii Franchet in Nouv. Arch. Mus. Paris, se"r. 2, VIII. 212 

 (1884). 



1 To record an extension of range the following species of this section may be 

 mentioned here: 



Acer cordatum Pax in Hooker's Icon. XIX. text to t. 1897 (1889). 

 Fokien: April to June 1905, S. T. Dunn (Herb. Hongkong Bot. Gard. No. 

 2541). 



2 The fact that certain forms of A. laxiflorum Pax and A. Maximowiczii Pax 

 are so similar that the separation of these species becomes difficult, has made it ap- 

 parent to me, that there are no characters by which to distinguish in the case of some 

 of the species the section Indivisa from the section Macrantha. I refer therefore 

 all species of the Indivisa Pax to the Macrantha, except A. stachyophyllum Hiern, 

 which I have already, in 1905, transferred to the section Arguta, A . distylum Siebold 

 & Zuccarini, which with its paniculate inflorescence seems to find its best place in 



