SAXIFRAGACEAE. — HYDRANGEA 33 
- Western Szech'uan: Wang-t’ien-ling, August 9, 1891, A. von 
Rosthorn (No. 1168, type). Hupeh: Changyang Hsien, thickets, 
alt. 30-60 m., September 1907 (Nos. 2393, 2396). 
Wilson's No. 2396 with the leaves 23 cm. long and 3.7 em. broad approaches 
var. macrophylla, but on account of the narrowness of the leaves it finds its place 
perhaps better here. 
Hydrangea Rosthornii Diels in Bot. Jahrb. XXIX. 374 (1900). 
Western Szech'uan: Nanchuan, Ya-chih-pa, August 1891, A. von 
Rosthorn (No. 471, type); Wa-shan, thickets, alt. 1500-2400 m., July, 
September and November 1908 (Nos. 1156, 1348, 1372, 2414); Ta- 
chien-lu, thickets, alt. 1800-2500 m., July and October 1908 (No. 
1365), October 1910 (No. 4337) ; Mupin, thickets, alt. 2400 m., October 
1910 (No. 4341); Mt. Omei, July 1904 (Veitch Exped. No. 4903). 
‘The close relationship of this species with H. robusta Hooker f. & Thomson is 
still more evident in Wilson's specimens than in the type specimen; the leaves of 
Wilson's specimens are larger, the largest measuring 25 cm. in length and 17 em. in 
width, the longest petiole is 20 cm. long and in some specimens the sterile flowers 
have strongly toothed sepals. It is also closely related to H. longipes Franchet, 
which is chiefly distinguished by its smaller and thinner, coarsely serrate leaves, 
less densely strigose or glabrescent beneath. 
Hydrangea longipes Franchet in Nouv. Arch. Mus. Paris, sér. 2, 
VIII. 228 (PI. David. II. 45) (1885). 
rune ($ Calyptranthe) longipes Hemsley in Jour. Linn. Soc. XXIII. 273 
J 
Hydrangea aspera, var. a longipes Diels in Bot. Jahrb. XXIX. 374 (1900). 
Hydrangea (Calyptranthe) Hemsleyana Diels l. c. 376 (1900). — Pampanini in 
Nuo. Giorn. Bot. Ital. n. ser. XVII. 284 (1910). 
... Western Szech'uan: Mupin, June 1869, P. David; Mupin, thick- 
ets, alt. 1800 m., July 1908 (No. 2406); alt. 1500-2100 m., October 
1910 (No. 4342); Wa-ssu country, Wén-chuan Hsien, thickets, alt. 
1100-2100 m., July 1908 (No. 2400); Hsing-shan Hsien, thickets, alt. 
1200-1800 m., July 1808 (No. 2401); Wa-shan, thickets, 1800-2400 
m., July 1908 (No. 2413); northeast of Sungpan, thickets, alt. 1800- 
2200 m., October 1910 (No. 4330); Lungan Fu, alt. 1800-2400 m., 
August 1910 (No. 4481); Nanch’uan, A. von Rosthorn (No. 1931). 
Western Hupeh: Chang-lo Hsien, cliffs and thickets, alt. 1300- 
1500 m., July 1907 (No. 2402); north and south of Ichang, thickets 
and rocky places, alt. 1200-1800 m., June and November 1907 (No. 
580); Patung, May 1901 (Veitch Exped. No. 1213); without locality, 
uw 1901 (Veitch Exped. No. 2514); A. Henry (Nos. 5839 A, 
9 B). 
