. glabra, Wight in Wall., Cat. Lith., (1832), No. 5101C. 

 'Ala, Linn., Sp. Plant., (1753) p. 1032. Botrtjosicyos 



Vol. X, No. 1.] The Dioscoreas of the Old World. 23 



[N.S.] 



subrigidas 20 cm. longas dispositi : axis dense pubescens pilis rufo- 

 griseis : bractese lanceolatae, 8 cm. loag&t extra pubescentes. Sepala 

 lineari-lanceolata, acuta, 6-7 mm. longa, extra pubescentia. Petala 

 similia, minora. Staminoiia perminuta. Capsular reflex®, versus maturi- 

 tatem subglabrescentes, 22 mm. longae, apice obtusissi uup, basi paulum 

 retusa? : alae semi-ovato-cordata\ 7 mm. latae. Semina altero latere 



alata. 



Cochin" China. In provincia Bien-hoa ad Thu-dau-mot et Ben-cat 



(Pierre, 7#19 !), ad Bao-chauh et Ton-man (Pierre, 7020 ') ad Hauh-chui 

 in ripis fluminis Mekong (Harrnand, 92 !). sine loco exacto (Thorel, 356 ! 

 Godefroy\). Typi in Herbario ad Lutetian Parisiornm conservantur. 



43, D. pentaphylla, Linn., Sp. Plant., (1753), p. 1032: 

 Lam., Eneyc. Meth., iii (1789), p. 234: Willd., Sp. Plant,, 

 v. (1805), p. 789. D digitata, Mill., Gard. Diet., (1768), 

 no. 6. D. J acquemont i i , Hook, f., Flor. Brit, hid., vi. (1892), 

 p. 290. D. Kleiniana, Kunth, Enum , v. (1850), p. 394. D. 

 mollissima, Hassk., Cat. Hort Bog. ; (1844). p. 33. D. tomen- 



tosa, var 

 D. triphyll 



pentaphyllus Ho list., in Flora, xxvii. i. Beilage (1S44), p. 3. 

 Hamatris triphylla, Sali3b., Gen. Plant. Fragm , (186 5) p. 12. 

 Ubium scandens, Jaums-Saint-Hilaire, Expos. Fain. Nat., i. 

 (1805), p. 106. From Western India to the remotest parts of 

 the Pacific, from the Himalaya and Yunnan southwards to 

 Ceylon and to the islands in the Torres Straits. 



Var i at : 



Var. Linnjsi. Tuber a elongati, carne albida sapida. Planta pins 



albis prsecipue in floribusmasculinis plus minusve induta. Folia 

 nitentia. 



Var- Thwaitesii. Praecedenti similis, at folia tenuissima, fere glabra. 



Var. Sult. Priecedentibus similis at folia grisea nee nitentia. 



Var. J acquemont Li. T ubera elon^ata, carne albida sapida. Pili 

 albi pauci in inflorescentia masculina, sed folia glabra. Bid- 

 billce rotunda?. Flores majores. 



Var. Cardonii. Praecedenti similis, sed folia parce pilis rufis in- 

 duta et flores minores. 



Var. siMPLiciF >LiA. Varietati Cardonii similis; differt joliis firmi- 



oribus, ultimis maenis simplicibus. 



Var. Rheedei. Tubera elonga a, carne albida sapida. Folia 

 siccitate subnigresc.mtia. Bulbilloe magnopere elongata?. In- 

 florescentia parce pilis albis induta. 



Var. malaica. Tubera breviuscula vel elongata, carne sapida. Folia 

 rufo-pubescentia : foliola plerumque angustiora 



Var. hortorum. Tubera rotundata, lae viuscula, carne albida sapida. 

 Folia tria, latiora, siccitate nigricantia. 



Var. communis. Tub ra brevia, radiculis rigidis horrentia, carne 

 insipida firma. Foliola terna vel quinata, rufo-pubescentia. 



Var. Kussok. Praecedenti similis, differt foliis glabrescentibus. 



Varietas Linnaei reperitur in Zeylania et in India australi (Wight in 

 Herb. Wall. No. 5102!). Varietas Thwaitesii est Thwaites 2869! ex 

 Zeylania centrali. Varietas Suli in montibus HimUaicis vulgaris est, 

 nac non 03Currifc in montibus Khasianis et Nagensium. Varietas Jac- 

 QUEMOntii vulgaris est in montibus supra litore ocsidentali Indise. 

 Varietas Cardonii prsecipue reperitur in montibus indici3 regionis 

 Chutia Nagpur. Varietas simpuct folia adhuc ex montibus Melghat 



