Oldenlandia."] lxx. rubiacetE (uiern). 63 



1 -flowered, much shorter than the leaves, about the length of the 

 calyx. Calyx sub-coriaceous ; teeth lanceolate, hispid-scabrous on the 

 margin, distant. Corolla white, scarcely or rather exceeding the 

 calyx, funnel-shaped, deciduous ; throat somewhat hairy ; lobes obtuse. 

 Stamens and style included. Capsule subglobose, 4.ribbed, y^j- in. 

 diameter, at length loculicidally bursting at apex. Seeds angular. 

 Hcdi/otis capeMsis, Lam. III. i. p. 271, n. 1425 (1791). H. sabulosa 

 and H. riparia, DC. Prodr. iv. p. 424 (0. riyarla, Steud. Nomencl. 

 ed. 2, i. 728), appear to belong to this species ; I have not seen 

 specimens. 



Upper Guinea. Niger, Barter ! ; Senegambia, Perrotlet and Leprieur, Lelicrre. 



ITile Iiand. Djur-land, Schweinfurth ! ; Cordofan, Cienkowshij. 



Mozamb. Bistr. Zambesia, Stewart ! ; Mozambique, Fortes ! ; Sena, Peters .' • 

 Cabaceiral^ F«ters. 



Occurs also in the Cape Flora, in Madagascar, and in Syria according to Boissier, 

 Fl. Or. iii. 11. According to Sonder in Harv. et Sond. Fl. Cap. iii, 9, the calyx is 

 sometimes 5 -fid. 



26. O. trinervla, Befz. Obs. Bot. iv. p. 23 (178G). Colour 

 yellowish green. Stems herbaceous, decumbent, elongated, angular, 

 more or less branched dichotomously, rooting at base, hirsute or nearly 

 glabrous, ^1^ ft. long. Leaves elliptical ovate or obovate, obtuse or 

 apiculate, wedge-shaped at base, shortly petiolate, usually rather glossy, 

 4~t' ^y 8~3 ^"*' indistinctly 3-nerved at base; margins narrowly re- 

 volute, scabrid ; stipules ovate, bicuspidate. Flowers tetramerons, 

 tVtV ^^- ^ong, very shortly pedicellate, axillary and terminal, crowded 

 several (6 or fewer) together in each of opposite axils. Calyx sub- 

 coriaceous, hirsute with spreading hairs; teeth lanceolate, distant. 

 Corolla scarcely exceeding the calyx, rotate, glabrous within. Capsule 

 hirsute, globose, at length bursting loculicidally. Seeds small, obtusely 

 angular. — Hedyotis trinervia, Roem. et Schult. Syst. Veg. iii. p. 197, 

 n. 27 ; Wight et Arn. Prod. p. 414, cum syn. plur. E. qoreensis, 

 DC. Prodr. iv. p. 421. 



Upper Guinea. Niger at Nupe, Barter ! Senegambia, Leprieur and Perrottet ; 

 a weed in rice-fields. 



STile ILand. Djur-land, Schweivfurth ! 



Mozamb. Distr. Zanzibar Island, Hildehrandt ! 



Occurs also in India, Madagascar, Mauritius, &c. 



De Candolle I.e. describes a variety /3. erecta (stem erect simple much shorter, 

 head terminal umbellate) also from Goree, and gathered by Leprieur and Perrottet. 



Wight and Arnott I.e. quote as a synonym 0. repens, Eurm. Ind. p. 38, t. 15, f. 2 

 (bad). This bears date 1768, but Burmaun describes and figures the peduncles as 

 solitary and 1 -flowered. 



27. O. znaoropliylla, DC. Prodr. iv. p. 427. Aquatic or pa- 

 lustral, creeping decumbent or diffuse, annual or sometimes perhaps 

 perennial. Stem somewhat quadrangular, ^2 ft. long or more. 

 Leaves sessile or subsessile, lanceolate or linear- or ovate-lanceolate, 

 mostly acute, 1-3 by ^-1 in., more or less narrowed at base ; stipules 

 broad at the base, entire or 2-3-toothed. Cymes 2-6 in. long, including 

 the peduncles, lax, dichotomous axillary and terminal, paniculate or 

 racemose ; pedicels ranging up to ^ in., spreading or deflexed in fruit. 



