334 WILSON EXPEDITION TO CHINA 



Clematis repens Veitch, Novelties for 1908-1909, 4, fig. (non Finet & Gagne- 

 pain) (1908). — De Corte in Rev. Hort. Belg. XXXV. 108, t. (1909). 



Hupeh: " Kian-scian," alt. 2000 m., September 1907, C. Silvestri 

 (No. 631). Western Szech'uan: Mupin, thickets, alt. 2000- 

 2600 m., June and October 1908 (No. 868''; climber 3 m., flowers 

 white); Wa-shan, thickets, alt. 2000-2300 m., November 1908 (No. 

 1303; cHmber 4-6 m.); Tachien-lu, woodlands, alt. 3000-3600 m., 

 October 1910 (No. 4318; climber 5-8 m.); west and near Wen-ch'uan 

 Hsien, thickets, alt. 2300-3000 m., October 1910 (No. 41 10; large 

 climber 6 m.) ; without precise locaHty, October 1904 (Veitch Exped. 

 No. 3114^). Yunnan: mountains north of Mengtze, alt. 2300 m., 

 A. Henry (No. 10748). 



This most distinct variety is the commonest form in western Szech'uan. 



Clematis montana, var. Wilsonii, f. platysepala Rehder & Wilson, 

 n. forma. 



A varietate Wilsonii recedit sepalis late obovatis apice rotundatis 

 V. truncatis. 



Western Szech'uan: Wa-shan, thickets, alt., 2000-2600 m., 

 June 1908 (No. 2461, type; climber 3-4 m., flowers white); west and 

 near Wen-ch'uan Hsien, alt. 1600-2800 m., July and October 1908 

 (No. 1003; climber 4-5 m., flowers white). 



This form is distinguished by its broadly obovate, rounded or truncate sepals; 

 the flowers are very round in shape and produced at the same time as the leaves. 



Clematis Spooneri Rehder & Wilson, n. sp. 



Clematis montana, var. sericea Franchet apud Finet & Gagnepain in Bull. 

 Soc. Bot. France, L. 525 (1903); Contrib. Fl. As. Or. I. 10 (1905). 



Frutex scandens, 3-6-metralis ramis teretibus; ramuli hornotini 

 dense breviter villosi, annotini glabrescentes, castaneo-brunnei, 

 vetustiores cinereo-brunnei ; gemmae oblongo-ovatae, densissime 

 villosae. Foha decidua, 3-foHolata, foliola ovata v. ovalia, rarius 

 elliptica, acuta v. breviter acuminata, basi rotundata v. late, rarius 

 angustius cuneata, plerumque supra medium utrinque dente unico 

 late ovato mucronato instituta, rarius utrinque 2-4-dentata, 2.5-8 cm. 

 longa et 2-4.5 cm. lata, utrinque sericea, subtus densius indumento 

 initio flavo-nitente, maturitate chartacea, firma, costa et nervis 

 supra impressis subtus elevatis, folia lateralia breviter petiolulata 

 paullo minora quam folium terminale longius petiolulatum petiolo 



