(79) F. N. WILLIAMS. LISTE DES PLANTES CONNUES DU SIAM. 951 



lieh under « Dimetra ». The name intended is « Dimetia », a section of Hedyotis 

 proposed by Wight and Arnott (1834), afterwards raised to generic rank by 

 Meissner. Wallich listed the plant under Hedyotis, and in this form was taken 

 up by Hooker f. in Fl. Brit. Ind. III, p. 59. 



872. Oldenlandia nudicaulis Roth. — Kedah (Curtis, n. 2669). 



873. Oldenlandia paniculata L. — Bangkok (Schomburgk, n. 131). 



874. Oldenlandia peduneularis Williams, nom. nov. — Kedah (Ridley, 

 n.554 6). 



Syn. Hedyotis peduneularis King, in King and Gamhle, Mat. Fl. Malay Penins. 

 n. 14, p. 51. rêimpr. ex Journ. Asiat. Soc. ßengal, 1903, p. 161. 



875. Oldenlandia pinifolia Kuntze, Rev. Gen. Plant, p. 293 (1891). — 

 Kedah (Curtis, 1892). F K G. VI, p. 329; Prao creek on rocks in the jungle, 

 and Kong islet on sandy ground. 



876. Ophiorrhiza brachycarpa Schum., in F K C. VI, p. 331 (July 1902). 

 — In the jungle along the Son creek (n. 631, in part). 



It is distinguished from all other known species of the région by the short 

 fruit. 



877. Ophiorrhiza Harrisoniana Wight and Arn., Prodr. p. 405 (1834). 

 F K C. VI, p. 330; at 210 mètres above the Majum creek, on rocks in the 

 jungle (n. 606). 



878. Ophiorrhiza mungos L. — F K C. VI, p. 330; in the jungle along 

 the Son creek (n. 631, in part). 



879. Argostemma pictum var. tetraphyllum King and Gamble, Mat. Fl. 

 Malay Penins. n. 14, p. 34, ex Journ. Asiat. Soc. Bengai, 1903, p. 144. — 

 Cf. F K C. VI, p. 330. The plant referred to under n. 502, « with a whorl of 

 four unequal leaves », seems nearest to this among Malayan species, although 

 its identity is not hinted by Schumann. Even after eliminating other species by 

 their descriptions, it does not tally with any of the other spécimens of the genus 

 from S. E. Asia in Herb. Kew. 



Trib. Cinchone^e 



880. Coptosapelta flavescens Korth. — F K C. VI, p. 331; plains near 

 Cape Dan, open jungle near the Munsé creek (n. 222). 



Trib. Nauclee^e 



881. Nauclea purpurea Roxb. — F K C. VI, p. 331; river-bank in the 

 jungle near the Son creek (n. 680). 



882. Nauclea synkorynes Korth. — F K C. VI, p. 331; Son creek. The 

 occurrence of these two species i£ interesting, as Mr. G. D. Haviland in his 

 Revision of the Tribe Naucleeœ, in Journ. Linn. Soc. XXXIII (1897), does not 

 note any Siamese records for any of the species of the group. 



