Oldenlandia. | LXX. RUBIACE (HIERN). 63 
l-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, 34; in. 
diameter, at length loculicidally bursting at apex. Seeds angular. 
Hedyotis capensis, Lam. Ill. i. p. 271, n. 1425 (1791). H. sabulosa 
and H. riparia, DC. Prodr. iv. p. 424 (0. riparia, Steud. Nomencl. 
ed. 2, i, 728), appear to belong to this species; I have not seen 
Specimens. 
Upper Guinea. Niger, Barter! ; Senegambia, Perrottet and Leprieur, Lelierre. 
Nile Land. Djur-land, Schweinfurth!; Cordofan, Cienkowsky. 
Mozamb. Distr. Zambesia, Stewart! ; Mozambique, Fortes!; Sena, Peters !; 
Cabaceira, Peters. 
Occurs also in the Cape Flora, in Madagascar, and in Syria according to Boissier, 
Fi. Or iii. 11. According to Sonder in Harv. et Sond. Fl. Cap. iii. 9, the calyx is 
Sometimes 5-fid. 
26. O. trinervia, Retz. Obs. Bot. iv. p. 28 (1786). Colour 
yellowish green. Stems herbaceous, decumbent, elongated, angular, 
more or less branched dichotomously, rooting at base, hirsute or nearly 
glabrous, 1-12 ft. long. Leaves elliptical ovate or obovate, obtuse or 
apiculate, wedge-shaped at base, shortly petiolate, usually rather glossy, 
$ by 4-4 in., indistinctly 3-nerved at base; margins narrowly re- 
volute, scabrid ; stipules ovate, bicuspidate. Flowers tetramerous, 
Tz7yy in. long, 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. 
orolla scarcely exceeding the calyx, rotate, glabrous within. Capsule 
Trsute, globose, at length bursting loculicidally. Seeds small, obtusely 
angular.— Hedyotis trinervia, Roem. et Schult. Syst. Veg. iii. p. 197, 
D 27; Wight et Arn. Prod. p- 414, cum syn. plur. H. goreensis, 
C. Prodr, iy. p. 421. 
Upper Guinea. Niger at Nupe, Barter! Senegambia, Leprieur and Perrottet ; 
4 weed in rice-fields. gor ab Nupe, . e 
rd Land. Djur-land, Schweinfurth ! 
0 ozamb. Distr. Zanzibar Island, Hildebrandt ! 
Ceurs also in India, Madagascar, Mauritius, &c. 
. 7 Candolle le. deseribes a variety B. erecta (stem erect simple much shorter, 
4d terminal umbellate) also from Goree, and gathered by Leprieur and Perrottet. 
ight and Arnott Le. quote as a synonym O. repens, Burm. Ind. p. 38, t. 15, f. 2 
pate This bears date 1768, but Burmann describes and figures the peduncles as 
tary and 1-flowered. 
le hal QO. macrophylla, DC. Prodr. iv. p. 427. Aquatic or pa- 
Stral, creeping decumbent or diffuse, annual or sometimes perhaps 
rennial, Stem somewhat quadrangular, $-2 ft. long or more. 
oo ves sessile or subsessile, lanceolate or linear- or ovate-lanceolate, 
ostly acute, 1-3 by 4-1 in., more or less narrowed at base ; stipules 
hig at the base, entire or 2-3-toothed. Cymes 2-6 in. long, including 
© peduncles, lax, dichotomous axillary and terminal, paniculate or 
Mose ; pedicels ranging up to 4 in., spreading or deflexed in fruit. 
