(72) F. N. WILLIAMS. LISTE DES PLANTES CONNUES DU SIAM. 435 



Langkawi group (Curtis, n. 2565). Forms a regulär small bush, very unlike the 

 habit of any of the other species. 



Trib. Trichospore^e 



801. ^Eschynanthus Lobbiana Hook. — Mt. Rayah, on Langkawi Island 

 (Curtis). Kedah Peak, at 1200 melres (Ridl.) 



The commonest species of the genus in the Malay Peninsula, growing upon 

 trees in wet jungle. The form of the leaves varies a good deal, as dœs their 

 texture. The mountain plants, hère referred to, hâve much thicker and fleshier 

 leaves. 



802. ^Eschynanthus marmorata T. Moore. — Bangtaphan (Dr. Keith, ex 

 Ridl.); an epiphyte in earthy hollows in reclining trees. Mt. Rayah, on Lang- 

 kawi Island (Curtis, n. 2142). It has long been known in cultivation, being the 

 M. zebrina (nomen nudum prius) of Van Houtte's Catalogue (1851). 



803. jEschynanthus speciosa Hook. — Tomoh, in Legeh province, Lower 

 Siam (A. D. Machado, ex Ridl.). 



Trib. Beslerie^e 



804. Cyrtandromaea megaphylla Hemsl. — Tomoh, in Legeh province 

 (A. D. Machado), on banks in thick jungle. By the natives it is called «Supujit 

 Bukit» and «Lumpuh Munahow». 



805. Epithema saxatile Blume. — Langkawi Island, on limestone rocks 

 (Curtis, n. 2107). 



The only Siamese Gesneriaceae in Herb. Kew. are a few unnamed duplicates 

 of Mr. Ridley's type-specimens. 



Fam. 97. ACANTÜACEJE 

 Subfam. Nelsoninœ. 



806. Nelsonia campestris Brown. — Marshes, near Bangkok (Schom- 

 burgk, n 192). 



Subfam. Acanthinœ. 



807. Hygropbila angustifolia var. quadrivalvis (Nées) Williams. — 

 Bangkok (Schomburgk, n. 198). F K C. VI, p. 349, rice-field near C. Dan 

 (nn. 178, 241, 315). 



Mr. C. B. Clarke (l. c.) says, «may be esteemed a var. only of Hygrophila 

 salicifolia Nées». As the latter is synonymous with H. angustifolia (see also 

 Index Kewensis, I, p. 1186), the varietal name requires altération. 



Var. assurgens (Nées) Williams. — Bangkok (Zimmermann, n. 81 

 <(H. salicifolia))). 



