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



MiegeviJle, loc. cit., p. 374. Central and Eastern Pyrenees. 

 A relic of the Tertiary Flora of Europe, very local and very 

 interesting on account of its wingless seeds. The structure of 

 the tubers deserves investigation. 



Section 2.— Stenophora. 



2. D. flabellifolia, Prain et Burkill, in Elmer, Leaflets 

 of Philippine Botany, v. (1913), p. 1593. Luzon in the latitude 

 of Manila. There is considerable doubt in regard to the posi- 

 tion of this species, of which the capsules and underground 

 parts are unknown. It has been obtained by three collectors 

 in the Island of Luzon, Philippines {Elmer, 9095 ! Loher, 691'T ! 

 7027 ! McGregor, 14381 !) 



3. D. daunaea, Prain et Burkill, in Journ. Asiatic Soc. 

 Bengal, iv. (1908), p. 450. Dawna Hills of Tenasserim. The 

 female plant is at present unknown. 



4. D. cambodiana. This is the third plant of the section 

 Stenophora of which the male only is known. It was collected 

 by the late M. Pierre in Cambodia, and is described here, 



Dioscorea cambodiana. Tuber ignotum. Planta omnino glabra. 

 Caules superiores siccitate flavi, leviter stria ti, sinistrorsim volubiles. 

 Folia alterna, ovato-deltoidea, abrupt© et broviter acuminata, tenuis- 

 sima, ad 5 cm. longa, 5 cm. lata, 7-nervia : area media a nervorum 

 lateralium primo pare terminata late oblanceolata : nervi extimi bifidi : 

 venae secundariae inter venulas indistincta* : petiolus ad 5 cm. longus. 

 Flares maris singuli in raceraum spiciformem dispositi : axis tenuis- 

 simus, triangularis : pedicelli 1-5 mm. longi : braetea? late lanceolate, 

 acuminato-acutae, subscariosa? : bracteolae similes, minores. Perianthii 

 maris lobi biseriati, ovati, obtushsimi , apice rotundati, 1-nervii, floribus 

 expansis paullulo recur vati : tubus crateriformis, externe costatus, 

 1 mm. longus. Stamina 6, in marginem tubi inserta : filamenta # 25 mm. 

 longa, antheribus aequilonga. Planta fceminea ignota. 



Cambodia. — In Monte Kereer; Pierre, 6673! Typus in herbario 

 Horti Botanici ad Lutetias Parisiorum conservatur. 



5. D. Rtdleyi. Sarawak in Borneo. As the male plant 

 is unknown its position is somewhat doubtful : but we expect 

 that it will be found to have the saucer-shaped perianth of the 

 Stenophoras, and that the male flowers are single to each bract 

 as in D. dauncea and D. cambodiana. It is interesting to 

 observe that this is characteristic of the southernmost species 

 of the section. 



Dioscorea Ridleyi. Rhizoma ignotum. Caulea tenues, inermes, 

 teretes. Folia alterna, ovata, acuminata, basi tantum cordata, glabra, 

 ad 10 cm. longa, ad 4*5 cm. lata, 5-nervia : area media a nervorum 

 lateralium pare primo terminata elliptica : venae secundariae inter se 

 fenestrate nee trajectae : petiolus ad 3 cm. longus, glaber, angulatus. 

 Capsules irregulariter reflexae, vix imbricate, basi ad s mm. lonsa 



