62 Lxx. RUBTACEiE (hiern). \_Oldenlandia. 



diam., crowned with the persistent calyx-teeth, loculicidally dehiscing 

 from the apex. Seeds minute, angular. — Hedyotis lancifoUa, Schum. 

 Beskr. Guin. PI. p. 72 ; Hedyotis, No. 2, Thoms. in Speke Journ., App. 

 p. 636 ; Oldenlandia (sp.), Oliv. in Trans. Linn. Soc. Lond. xxix. 

 p. 84. 



Upper Guinea. Guinea, moist places in the valley of Aquapim. Scki/- 

 macher; Niger Expedition, at Aboh and Nupe, in moist places, Barter! By the 

 Bagroo River, Mann ! 



Nortb Central. Monhuttxi Land, Schweinfurth ! 



WTile ]bancl. Bogs at Madi, Speke and Grant ! 



24. O. coryxuboBa, Li^nn. Sp. PI. edit. i. p. 119 (175.3). An 

 erect ascending or diflPuse annual, smooth and glabrous or nearly so, 

 branched, ranging up to a foot in height. Branches tetragonal, 

 usually smooth. Leaves linear or nearly so, acute or apiculate, nar- 

 rowed to the sessile base, usually glaucous or paler beneath, the 

 longer ones f-1-^ in. or in some forms rather larger ; stipules truncate, 

 shortly sheathing, sub-3-setose. Flowers tetramerous, white. -^^ in. 

 long, 2-5 together in axillary and terminal umbellate corymbs usually 

 rather shorter than the leaves or rarely solitary ; pedicels yV-^in. long ; 

 peduncles ranging up to J in. Calyx about equalling the corolla- tube ; 

 teeth lanceolate, as long as the tube. Corolla campanulate or subrotate ; 

 throat pubescent or nearly glabrous ; anthers included or subexserted. 

 Fruit subglobose, -^^ in. diam., subdidymous, crowned by the calyx- 

 limb, at length bursting loculicidally at the apex. Seeds angular. 

 — Hedyotis corymbosa, Vatke in Oesterr. Bot. Zeitschr. xxv. p. 232 ; 

 0. herbacea, DC. Prodr. iv. p. 425 ; (.^ H. herbacea L.), H. (Kohau- 

 tia ?) pusilla, Hochst. in Hb. Schimp. Abyss, iii. n. 1522 ; A. Rich. Fl. 

 Abyss, i. 362 ; ? H. sperguloides and H. tricJwpoda, A. Rich. I. c. p. 

 361, 360 ; r H. longifolia, Schum. and Thonn. Beskr. Guin. PI. p. 70, 

 n. 2, i.e. 0. longifolia, DC. Prodr. iv. p. 426 ; Oldenlandia, sp. Unio 

 Itin. in Hb. Schimp. i. n. 68 (1840). 



Vpper Guinea. Senegambia ; Accra, G. Don ! by the Quorra, Th. Vogel ! 

 Fernando Po, Milne ! Th. Vogel ! St. Thomas, G. Don ! 



irUe Xiana. Abyssinia, Schimper ! Djurland, Schweinfurth! Bongo-land, 

 Schweinfurth ! 



Iiower Guinea. Congo, Burton !, Chr. Smith ! 



SSozamb. Distr. E. Sena, in sandy places, Peters ; between Tette and the sea 

 coast, at Marraro, 27th March, 1860, Kirk! ; ? Kongone mouth of the Zambesi, 

 Kirk!; ? Zanzibar Island, HUdebrandt n. 1008 ex Vatke in Oesterr. Bot. Zeitsch. 

 xxv. p. 232 (1875), under name of Hedyotis (Oldenlandia) herbacea, Blume. 



A common tropical weed. 



25. O. capensis, Linn. fil. Suppl. PI. 127 (1781). A puberulous 

 or somewhat scabrous much branched decumbent or diffuse leafy 

 annual, 4-9 in. high or more. Branches tetragonal, spreading in all 

 directions. Leaves narrowly linear, acute, sessile, -^-1 in. long ; 

 margins more or less revolute; stipules truncate or shortly ovate, 

 sheathing, 2-3-setose. Flowers tetramerous, t^-tV ^°- ^^^S- Pedun- 

 cles numerous, rarely only 2 together, axillary and terminal, clustered, 



