336 WILSON EXPEDITION TO CHINA 



This species differs from the other species of this group in the inflorescence 

 which is reduced to one or three large flowers; it thus forms a transition to the 

 preceding group, but the flowers, even when solitary, are always borne on dis- 

 tinct peduncles in the axils of the leaves of young branches. 



Clematis Fargesii, var. Souliei Finet & Gagnepain in Bull. Soc. 

 Bot. France, L. 523 (1903); Contrih. Fl As. Or. I. 8 (1905). 



Clematis Souliei Franchet mss. ex Finet & Gagnepain, 1. c. (quasi synon.). 



Western Szech'uan: north-east of Tachien-lu, Ta-p'ao-shan, 

 forest glades, alt. 3300 m., July 4, 1908 (No. 2467; flowers pure white) ; 

 without precise locahty, woods, alt. 3300 m., June 1904 (Veitch Exped. 

 No. 3117). Shensi : Tai-pei-shan, 1910, W. Purdom (No. 540). 



This very handsome plant is not common and is always found in woodlands. 

 In addition to the characters mentioned by Franchet it seems to differ from the 

 type in the often narrower leaflets broadly cuneate at the base and glabrescent 

 beneath. 



Clematis apiifolia De Candolle, Syst. I. 149 (1818); Prodr. I. 6 

 (1824). — Hooker & Arnott, Bot. Voy. Beechey, 258 (1841). — Max- 

 imowicz in Bull. Acad. Sci. St. Petershourg, XXII. 218 (1876); in Mel. 

 Biol. IX. 593 (1876). — Kuntze in Verh. Bot. Ver. Brandenh. XXVI. 

 151 (Monog. Clem.) (1885). — Hemsley in Jour. Linn. Soc. XXIII. 

 2 (1886). — Finet & Gagnepain in Bull. Soc. Bot. France, L. 531 

 (1903); Contrib. Fl. As. Or. I. 16 (1905). 



Clematis virginiana Loureiro Fl. Cochin. 345 (non Linnaeus) (1790). 



We have seen no specimens from western China referable to the Japanese form. 

 This species has been placed by Prantl and Schneider into the subsection Rectae 

 but it seems to us much more closely related to C. grata WaUich than to any other 

 species. 



Clematis apiifolia, var. obtusidentata Rehder & Wilson, n. var. 



Frutex scandens, 3-4-metralis ramulis hornotinis pubescentibus 

 sulcatis. FoHo longe petiolata, 3-foliolata, foliola late ovata v. ovata, 

 acuminata, basi truncata v. subcordata, rarius late cuneata, grosse 

 dentata dentibus late ovatis v. fere rotundatis obtusis et plerumque 

 mucronulatis, 5-9 cm. longa et 4-7.5 cm. lata, supra sparse, subtus 

 densius adpresse pilosa; petiolulus terminalis 2-4 cm. longus, laterales 

 1-2.5 cm. longi. Achaenia elliptico-ovata, breviter subaccumbenti- 

 villosa, 4 mm. longa. Ceterum ut in typo. 



Western Hupeh: Patung Hsien, thickets, alt. 1-2000 m., August 

 and October 1907 (No. 427^, type); Changlo Hsien, thickets, alt. 



