40 WILSON EXPEDITION TO CHINA 



orbiculato-obovatis integris leviter emarginatis; flores fertiles coerulescentes; 

 calycis denies 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). 

 Hup eh: A. Henry (No. 5949). 



Closely allied to H. longipes Franchet, which differs in its tomentum consisting 

 only of strigose hairs and hi 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). 

 Yunnan: 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 a 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). 



23. Hydrangea integrifolia Hayata in Jour. Coll. Sci. Tokyo, XXII. 131 (Enum- 

 PI. 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). 



Formosa: Mt. Morrison, T. Kawikami & U. Mori (No. 1723 ex Hayata). 



Sect. II. CALYPTRANTHE Maximowicz in Mem. Acad. Sci. St. Petersbourg, 

 X. No. XVI. 16 (1867). 



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 of 

 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 off 

 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 a 

 few climbing species. 



25. Hydrangea anomala D. Don. See p. 34. 



