Vol. X, No. I.] The Dioscoreas of the Old World. 31 



[N.S.] 



12. Found near the eastern coast of Australia between Lat. 

 34°S and Torres Straits ; and in northern Australia. 



71. D. cirrhosa, Loureiro, Flor. Cochinch., (1790) 



95, p. 230. 

 Tonkin to 



625: Kunth, Enum., v. (1850), p. 401. D. rhipog 



in Ic. Plant., (1889), 1. 1862: Henry, in Kew Bull 



D. camphor i folia, Uline MS. in herbariis nonnulli 



Hong-Kong and in Formosa. A very marked species, peculiar 



in the colouring matter of its tubers. Loureiro' s name, were 



it not for a specimen preserved in the British Museum, would 



be unrecognisable. 



72 D. Wallichii, Hook, f., Flor. Brit. Ind., vi. (1892), 

 p. 295. D. aculeata, Linn., Sp. Plant., (1753), p. 1033, in small 

 part. D. saliva, Wall., Cat. Lith., (1832) Nos. 5108A, 5108B, 

 5108F. India in the hills of the Malabar Coast, extending 

 thence inland near the River Tapti to Chota Nagpur and the 

 Circars, then occurring again through Burma and in the hills 

 south of the Brahmaputra Valley. 



Variat : — 



Var. vera. Capsulce vix glauese. 

 Var. Christiei. Capsulce glauese. 



Varietas vera occurrit in partibus Indiae petiinsularis orientalibus : 

 varietas Christiei in Burma. 



73. D. pulverea. Yunnan, in south-western China. Per- 

 haps this may prove to be no more than a variety of the last : 

 but until more material is available, its oblique very glaucous 



capsules and rather firmer leaves render it desirable to separate 

 it. 



D. pulverea. Tuber ignotum. Caules robusti, glabri, inermes 

 parte superiori, glauci. Folia pergamentaeea, exacte cordata vel late 

 cordata, apice acuminata, flavo-marginata, ad 13 cm. lata, ad 13 cm. 

 longa vel pro ratione paululo angustiora, 9-nervia : area media a ner- 

 vorum lateralium pare primo terminata anguste obovata : venae secun- 

 daria rectae, trajectae : petiolus ad 12 cm. longus, glaber. Flore* 

 ignoti. Capsulce in rhachei rigido deflexo ad 20 cm. longo proferta*, 

 admodum glaucre, rigidae, apice retusae, ad 30 mm. longae : ala semi- 

 obcordata, 25 mm. longa, 12 mm. lata. Semina inaequaliter circum- 

 circa alata, ala castanea. 



China Atjstralis. In Provincia Yunnan, ad Mengtze, alt. 4600 ped. 

 (Henry, 9288!). 



74. D. decipiens, Hook, f., Flor. Brit, Ind.. vi . (1892), 

 p. 293. D. glabra, Wall., Cat. Lith., (1832), Nos. 5105G, 

 5105H. D. rotundi folia , Wall. MS. in Herb, propr. In the 

 Naga Hills and through Burma to northern Siam and Laos ; 

 occurring just within the Chinese province of Yunnan. 



75. D. orbiculata, Hook, f., Flor. Brit. Ind., vi. 

 (1892), p. 292: Ridley, Mat. Flor. Malay Penins., ii. (1907), 



