16 Journal of the Asiatic Society of Bengal. [January, 1914. 



may be a variety only of D. Prazeri or D. sikkimensis , differing 

 in the shape of the capsules. 



D. Ci*arkei. Radix nobis ignota. Caules glabri, angulati, sinis- 

 trorsim volubiles Folia opposita, glabra, cordata vel longe cordata, 

 tenuiter acuminata, nee margine sinuosa, lobis basalibus subangulatis, 

 ad 8 cm. longa, ad 6 cm. lata, 7-nervia : area media a pare primo ner- 

 vorum lateraiium terminata lanceolata acuminata ; nervi extimi bifidi : 

 venae secundaria reti venicularum paululo magis conspicuse : petiolus ad 

 7 cm. longus, supra canaliculars, dorso et lateribus angulatus. Flores 

 ignoti. Cap8ulce respicientes, 20 mm. longae, apice retusse, fuscse, cast 

 aneo aspersse : alae semi-obcordatse, 12 mm. lat8B. Sernina loculis con- 

 formia, circumcirca alata. 



Montes Nagakxjm. — Kohima ad 5500 ped. alt., C. B. Clarke t 41018 ! 

 Typus in herbario apud Calcuttam coaservatur. 



19. D. sikkimensis, Prain et Burkill, in Journ. Asiatic 

 Soc. Bengal, lxxiii. (1904 ), suppl. p. 3. The Himalaya from 

 the longitude of Khatmandu to Western Bhutan, and from 

 the plains to 5000 ft. ; it has occurred also in the districts of 

 Champaran and Malda, but perhaps only as a casual, the root 

 having been carried down some river and lodged on the river 

 bank. 



20. D. deltoidea, Wall., Cat. Lith., (1832), no. 5100: 

 Kunth, Enum., v. (1850), p 340, in chief part: Stewart, in 

 Journ. Agri-Hort. Soc. India, xiv. (1867), p. 37: Hook, f., 

 Flor. Brit. India, vi. (1892), p. 291, in chief part: Prain et 

 Burkill, in Journ. Asiatic Soc. Bengal, lxxiii. (1904), suppl. 

 p. 5. D. nepalensis, Sweet, Hort. Brit., 2nd ed. (1830) p. 522. 

 Tamnus nepalensis, Jacquemont MS. The Himalaya east- 

 ward from the longitude of Khatmandu to the Afghan border, 

 from 3000 to 8000 ft., and sometimes to 10,000 ft. : also occur- 

 ring near Cherrapunji in the Khasia Hills, and on the Yunnan- 

 Burma boundary- 



21. D. caucasica, Lipsky, in Bull. Soc. Nat. Kieff, 

 1893, p. 143 : Alboff , in Acta Hort. Petrop., xii. (1893), p. 439 : 

 Radde, Sammlungen des Kaukasischen Museums, ii. (1901), p. 

 166. The coast of the Black Sea in the lower Caucasus, where 

 the annual rainfall is about 60 to 80 inches. The species 

 differs very little from D. deltoidea. 



22. D. panthaica, Prain et Burkill, in Journ. Asiatic 

 Soc. Bengal, lxxiii. (1904), suppl. p. 6. The Province of 

 Yunnan in south-western China at 7000—9000 ft. 



23. D. (ENEA. 



unknown 



but it undoubtedly has a close relationship to D. zingiber ens is. 



D. oenea. Tuber, teste Farges, magnum et ligneum. Caulis glaber, 

 colore cupreo-purpureus, striatus, sinistrorsim volubilis. Folia alterna, 



