256 DIOSCOREACEZ, [ Exaytiornyiium, 
8. D. glabra, Roxb.; Fl. Ind. wt, 803; F. B. I. vi, 294 (in 
chief part); Prain and Burkill. l.c. p.387. D. nummularia, Rozb: ; 
Fl. Ind. wi, 803. D. Wallichii, Hk. f. in F. B. I. vi, 295 (in small 
part).— F | 
India, south of the Ganges in the moister parts, the Himalaya from 
C. Nepal eastwards, the plains of Benga! and Assam, also in Burma 
and Siam, extending to the Malay Pen. and Islands eastwards to 
Java. » 
Var. vera, B. and P. 1. c. page 38. 
Leaves ovate, thin, very glaucous on lower surface, tinged with red 
in drying.—Recorded from Dehra Dun (Duthie), and from the Kheri 
district of N. Oudh (Duthie’s collector No. 22827 (a), and from the 
Gorakhpur district (Duthie’s collector No. 22827). 
9. D. alata, Linn. Sp. Pl. (1753), 1033; F. B. I. vi, 296, Watt 
E. D. ; Prain Beng. Pl. 1067; Prain and Burkill 1. c. p. 39. D. 
atropurpurea, globosa, purpurea, and rubella, Roxb. Fl. Ind. wi, 
pp. 797-800. 
Cultivated throughout the Tropics, wherever the rainfall is sufficient. 
It is certainly of eastern origin and was perhaps derived from D. 
Hamiltonii. Inthe W. Himalaya races exist, here classed under var. 
Tarri, which appear as if D. belophylla may possibly enter their 
composition. A plant widely cultivated is commonly polymorphic 
as regards the parts subjected to man’s influence, and D. alata is no 
exception ; it shows a great variety of forms of tuber * * * 
D. alata sometimes flowers and very rarely fruits (Prain and 
Burkill). Vern. Kham (Beng.). 
Var. Tarri, P. and B. 1. c. p. 39. 
Veins on lower surface of leaves conspicuous. Cult. in Kumaon and 
in the adjacent parts of the Himalaya. 
Var. vera, P. & B. l. c. 
Veins less conspicuous. 
CXI.—LILIACES. 
Herbs, rarely shrubs or small trees, with fibrous roots, or with a 
creeping rootstock or a bulb or corm. Leaves cauline or radical, 
somtimes none. Flowers usually 2-sexual, axillary Wr terminal, 
solitary or geminate or arranged in umbels, spikes, racemes, 
