354 WILSON EXPEDITION TO CHINA 



curvatis retinaculo subaequilongis; ovaria minute pilosa, stigmatibus 

 capitatis antheras vix v. paulo superantibus. Folliculi (an satis ma- 

 turi?) angulo 180° divergentes, 6.5 cm. longi et basim versus circiter 

 1.3 cm. crassi, versus apicem valde attenuati, leviter curvati, breviter 

 et laxevillosulijinsigniter (apice excepto) subannulato-plicato-corrugati, 

 in sicco cinereo-flavescentes; semina subobovato-oblonga, circiter 9- 

 10 mm. longa, basi obtusa 4-5 mm. lata, valde compressa, apice 

 coma sericea iis duplo longiore instructa. 



Western Szech'uan: Mao-chou, arid regions, alt. 1300-1900 m., 

 June 1, 1908 (No. 1190 type; climber 1.5-3 m. tall, flowers yellowish); 

 same locality, etc., August 1908 (No. 1190^; with fruits). Southern 

 Szech'uan: Nanch'uan, A. von Rosthorn (No. 2351; with young 

 fruits; No. 2350; with flowers). 



This species is very similar to D. sinensis Hemsley, but the fruits look dis- 

 tinct, as they have numerous annular crest-hke excrescences, while those of D. 

 sinensis have indistinct and irregular longitudinal excrescences. The pubescence of 

 the new species is even more dense than that of D. sinensis, especially on the under 

 surface of the leaves. The specimens from Nanch'uan mentioned above seem to 

 belong to D. corrugata according to a young fruit on No. 2351. It is difficult to 

 decide from dried specimens whether the differences in the structure of the flowers 

 are sufficient to distinguish the two species and even some of the forms of D. 

 sinensis. The color of the flowers is described differently by different collectors. 

 I suppose the flowers are creamy white marked with purplish or Ulac spots which 

 more or less or wholly disappear in drying. 



