Vol. X, No. L] The Dioscoreas of the Old World. 17 



[N.8.] 



late cordata, margine leviter sinuata, breviter acuminata, supra glabra, 

 infra pilis rigidis parvis in nervis prominentibus induta, ad 7 cm. longa, 

 ad 6 cm. lata, 7-nervia : area media a pare prirao nervorum lateralium 

 terminata oblanceolato obovata : venae secundaria in rete anastomo- 

 santes nee trajectae : petiolus folii lamino aequilongus. Flores maris 

 ignoti. Flores fceminei in spicas breves dependentes 5 cm. longas com- 

 positi : axes fusco-purpurei, angulati, pilis minutis induti : bracteae 

 fusco-rufte, ovato-lanceolatie, acutae, 1 mm. longae : bracteolae similes, 

 minores. Sepala ovata, supra rotundata, tenuiora, '5 mm. longa. Petala 

 breviora, basi angustata. Staminodia perminuta. Capsidce reflexa-, 

 cupreo-purpureaa, apice rotundata 1 , infra in pedicellam angustatae : al;<> 

 14 mm. Late, margins plus minus ve irregulares. 



China occidentals. — Ad Tchen-keou-tin in provincia Szechuan. 

 alt. 1400 ped., Farges, 90 ! Typus in herbario Horti botanici ad Lute- 

 tias PariBiorum conservatur. 



24. D. zingiberensis, C. H. Wright, in Journ. Linn. 

 Soc. Bot., xxxvi. (1903), p. 93. D. Henryi, Uline ex Diels, in 

 Engl. Bot. Jahrb., xxix. (1900), p. 261. name only. The Pro- 

 vinces of Hupeh in central China and Yunnan in south-western 

 China. A very well marked species. 



25. D. Collettii, Hook, f., Flor. Brit. Ind., vi. (1892), 

 p. 290. D. sp., Collett et Hemsley, in Journ. Linn. Soc. Bot., 

 xxviii. (1890), p. 137. Shan States and in China in the Pro- 

 vinces of Yunnan, Szechuan and Kweichow, apparently 

 abundant. 



26. D. Morsei, Prain et Burkill, in Journ. Asiatic Soc. 

 Bengal, iv. (1908), p. 454. Central China in the Province of 

 Kiang-si. A plant as yet only found at the eastern end of the 

 central mountain complex of China, but allied to the next. 



27. D. hypoglauoa, Palibin, in Bull. Herb. Boiss., 

 ser. 2, vi. (1906), p. 21. Central China in the province of 

 Fokien. This species and the preceding are certainly very 

 closely allied. 



28. D. gracillima, Miq., Prolusio Flor. Jap., (1865), p. 

 324: Franchet et Savatier, Enum. Flor. Jap., ii. (1879), p. 

 49: Makino, 111. Flor. Jap., i. (1889), t. 25. Central Japan. 



Section 3. Shannicorea. 



29. D. yunnanensis, Prain et Burkill, in Journ. Asiatic 

 Soc. Bengal, lxxiii (1904), p. 186. The Chinese Provinces of 

 Yunnan and Kweichow. 



30. D. Hemsley i, Prain et Burkill, in Journ. Asiatic 

 Soc. Bengal, iv. (1908), p. 451. 2>. prcecoz, Prain et Burkill, 



