170 Flora of the Malayan Peninsula. 



Fl. Br. Ind. III. 65. 0. herbacea, Roxb. Fl. Ind. I. 424. 0. linearis, 0. 

 linifolia and 0. asperula, DO. Prod. IV. 425. Hedyotis Heynii, W. & A. 

 Prod. 416; Wall. Cat. 867 (in part). 



Pbnang : Curtis 1848, 3399 ; King ; Deschamps. Province Welles- 

 let : King. Perak: Bidley 10313; Wray 1931. Singapore: Bidley 

 10916. — DiSTEiB. Malay Archipelago; Tropical Africa, 



This passes into 0. dichotoma as regards its inflorescence there being some 

 specimens in which, by reason of the smallness of the leaves, the inflorescence 

 resembles a lax panicle. 



6. Oldenlandia diffusa, Roxb. Hort. Beng. 11 ; Fl. Ind. I. 423. 

 Annual, diffuse, much-branched, dark brown when dry; glabrous. 

 Stems about as thick as a crow-quill when dry, compressed, obscurely 4- 

 angled, striate. Leaves linear-oblong, tapering to each end, the bases 

 continuous with the stipules, the edges recurved, rather pale on the 

 undersurface and the midrib prominent; length '5 to 1"5 in.; breadth 

 •05 to "1 in. Stipules cupular, the edges with a few short bristles 

 towards the middle. Flowers '\ 6 in. long, solitary, axillary, sub-sessile 

 or on peduncles "05 to *1 in. long, reflexed. Calyx widely campanulate, 

 with 4 erect triangular acute 1-nerved teeth. Corolla longer than the 

 calyx, widely campanulate, the mouth with 4 erect rather short broad 

 triangular teeth. Anthers shorter than the style, small, narrowly ovoid ; 

 filaments rather short. Stigma with 2 divergent lobes. Capsule de- 

 pressed globular, crowned by the small calyx-teeth, slightly more than 

 •1 in. in diam., many-seeded. DO. Prod. IV. 426; Hook. fil. Fl. Br. 

 Ind. III. 64; Trim. Fl. Ceyl. II. 315. 0. hrachypoda, DO. I.e. 424; 

 Wall. Oat. 874, Hedyotis ramosissima, Kurz in Joui'n. As. Soc. 1877 II. 

 133. H. diffusa, Willd. Sp. PI. I. 566; Wall. Oat. 868 (in part). H. 

 extensa, Wall. Oat. 869. H. polygonoides, Wall. Oat. 872. 



In all the provinces except the Andamans ; common. — Distrib. 

 Tropical Asia ; Japan. 



7, Oldenlandia trinervia, Retz Obs. IV. 23. Annual, herbaceous, 

 glabrous or hairy, procumbent, greenish brown when dry. Stems very 

 slender, grooved, 4-angled, sparsely hairy, often rooting at the nodes. 

 Leaves ovate-rotund to rotund or elliptic, thickly membranous, midrib 

 distinct below but the 1 or 2 pairs of nerves obscure, both surfaces 

 glabrous or sub-glabrous ; length '2 to "3 in. ; breadth under "05 or over ; 

 petiole usually under "05 in. long. Stipules scarious, campanulate with 

 a few bristles. Flowers *05 in. long, solitary, axillary, on short reflexed 

 pedicels. Calyx campanulate, with 4 acute spreading teeth, sparsely 

 pilose. Corolla slightly exceeding the calyx, with 4 broad, ovate, sub- 

 acute lobes, glabrous. Capsules somewhat compressed, broadly ovate, 

 truncate at the apex, crowned by the small calyx-lobes, dehiscing at 



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