40 WILSON EXPEDITION TO CHINA 
orbiculato-obovatis integris leviter emarginatis; flores fertiles coerulescentes; 
calycis dentes triangulares, vix tubum dimidium aequantes; petala oblongo-ovata, 
circa 2 mm. longa; stamina longiora 6-7 mm. longa, brevioribus duplo longiora; 
styli 2; ovarium inferum. Capsulae maturae desiderantur. 
Szech’uan: Wushan, July 1900, E. H. Wilson (Veitch Exped. No. 1393, type). 
Hupeh: A. Henry (No. 5949). 
Closely allied to H. longipes Franchet, which differs in its tomentum consisting 
only of strigose hairs and in its white fertile flowers. 
18. Hydrangea glabripes Rehder. See p. 30. 
19. Hydrangea aspera D. Don, Prodr. Fl. Nepal. 211 (1824). — Clarke in 
Hooker f., Fl. Brit. Ind. II. 404 (1878). 
Hydrangea vestita Wallich, Tent. Fl. Nepal. t. 49, fig. 5-8 (in part, excl. fig. 1-4 
and flowering branch) (1826). 
Hydrangea vestita Wallich, var. fimbriata Wallich, Cat. No. 440 B. (nomen nu- 
dum) (1828). — De Candolle, Prodr. IV. 14 (1830). 
—^4Y unnan: Mengtze, alt. 1800 m., A. Henry (No. 9208). 
This is the only Chinese specimen I have seen which I can refer to the typical 
H. aspera. The capsules, however, are smaller than in the type and have partly 2 
and partly 3 styles. The variety described by Pampanini as H. aspera, var. cordata 
(in Nuov. Giorn. Bot. Ital. n. ser. XVII. 283, [1910]), based on Nos. 835, 835° of 
C. Silvestri from Ou-tan-shan, western Hupeh, probably does not belong to H. aspera 
nor to H. strigosa, but as I have seen no specimens and the description given is too 
brief, I am not able to place it. 
Hydrangea aspera, var. velutina Rehder. See p. 30. 
Hydrangea aspera, var. scabra Rehder. See p. 31. 
20. Hydrangea strigosa Rehder. See p. 31. 
21. Hydrangea Rosthornii Diels. See p. 33. 
22. Hydrangea longipes Franchet. See p. 33. 
Hydrangea longipes, var. lanceolata Hemsley in Jour. Linn. Soc. XXIII. 
274 (1887). 
Hupeh: Ichang, A. Henry (No. 1786, type). Szech'uan: Changyang, June 
1900, E. H. Wilson (Veitch Exped. No. 1150). nd 
23. Hydrangea integrifolia Hayata in Jour. Coll. Sci. Tokyo, XXII. 131 (Enum- 
Pl. Formos.) (1906). 
Formosa: on rocks, Taitou, U. Faurie (No. 105 ex Hayata). 
24. Hydrangea integra Hayata in Jour. Coll. Sci. Tokyo, XXV. 90, t. 7 (Fl 
Mont. Formos.) (1908). 5 
Formosa: Mt. Morrison, T. Kawikami & U. Mori (No. 1723 ex Hayata). 
Sect. II. CALYPTRANTHE Maximowicz in Mém. Acad. Sci. St. Pétersbourg, — 
Da No. XVI. 16 (1867). e 
This section is well characterized by the compressed seeds having a narrow wing 
all around, by the climbing habit, the branchlets affixing themselves by means oí — 
rootlets, by the brown partly evanescent pith of the one year old branchlets and by — | 
the petals being thrown off as a whole by the extending stamens. The falling of 
as a whole of the petals occurs also occasionally in the section Asperae, which 
hardly differs from Calyptranthe in the structure of the flowers and also contains & 
few climbing species. 
25. Hydrangea anomala D. Don. See p. 34. 
