64 LXX. RUBIACEE (HIERN). [ Oldenlandia. 
Flowers } in. long, pentamerous. Calyx-tube turbinate in flower, 
campanulate or hemispherical in fruit; teeth small. Corolla ¢ in, — 
white or pale blue. Capsule about } in. diameter, membranous, sub- 
didymous, dehiscing loculicidally at the apex. Seeds angular, very 
small.—Hedyotis pentandra, Schum. et Thonn. Pl. Guin. 71. 4. 
pentamera, Hochst. in Flora 1844, 552. Hedyotis macrophylla, Lepr. 
et Perr. ex DC. 1c. Pentas? Thonningii, Walp. Repert. vi. p. 58, 
O. pentandra, DC. Prodr. iv. p. 427, non Retz. O. lawiflora, Benth. in 
Hook. Niger Fl. 404. Pentodon decumbens, Hochst. in Flora 1844, p. 
552. P. abyssinicus, Hochst. lc. P. pentandrus, Vatke in Oesterr. 
Bot. Zeitschrift xxv. 231 (1875). Pentas? (sp.) Benth. in Hook. 
Niger Fl. 402. 
Upper Guinea. Gambia, Leprieur and Perrotiet ; Guinea, Thonning ; Nun River, 
Th. Vogel! Niger, Barter! Abbeokuta, Barter! Corsico Island, Mann! Sierra 
Leone, Afzelius! 
Mile Land. Abyssinia, Schimper! White Nile, Petherick! Niamniam-land, 
Schweinfurth! Sennaar, Cienkowsky! 
Lower Guinea. Congo, Chr. Smith! Loango, Soyaur! 
Mozamb. Distr. Kongone Mouth of Zambesi, Kirk! Stewart! Shupanga, 
Kirk! Zanzibar, Hildebrandt! Sena, Peters. 
Occurs also in Natal, and the Seychelles Islands, and Johanna. 
28. O. wauensis, Schweinf. mss. in Hb. sub Hedyotide. Nearly 
glabrous, toughly herbaceous, about a foot high, branched. Root 
fibrous, apparently annual. Branches marked with 4 raised lines. 
Leaves linear or nearly so, usually apiculate, narrowed towards sessile 
base, 4-1 by +,-} in.; stipules sheathing, multisetose at truncate apex. 
_ Flowers pentamerous or occasionally tetramerous, usually in pairs, 
‘subsessile, axillary and terminal, scarcely 4 in. long. Calyx-lobes 
lanceolate, apicujate or at length obtuse, ~,—4 in. long. Corolla 
scarcely exceeding the calyx. Capsule obconic-oblong, coriaceous, 
about } in. long, indehiscent or tardily dehiscent (loculicidal at the 
apex). Seeds small, obtusely angular. 
Wile Land. Djurland, sandy fields above the Wau River, Schweinfurth ! 
29. O. hedyotoides, Boiss. Fl. Orient. iii. p. 11 (1875). A profusely 
branched nearly glabrous herb, 4-1 ft. high. Branches angular, often 
rooting at the base. Leaves linear-oval, narrowed at both ends, sub- 
sessile, 3-1 by 4-4 in., stipules pluri-setose, shortly sheathing. 
Flowers tetramerons, +, in. long, very shortly pedunculate, clustered a 
few together in the axils of the leaves. Calyx with 4 lanceolate- 
subulate lobes and as many (or sometimes fewer) intervening narrow 
subulate teeth nearly as long. Corolla hardly exceeding the calyx, 
4.fid, glabrous inside, white. Stamens and style included. Capsule 
coriaceous, subglobose, truncate, 4-ribbed, indehiscent. Seeds small, 
obtusely angular.—Karamyschewia hedyotoides, Fisch. and Mey. in Bull. 
Soe. Mose. 1838, p. 267. Theyodis octodon, A. Rich. Fl. Abyss. i. P- 
364. Hedyotis (sp.), Benth. et Hook. f. Gen. Pl. ii. p. 59. O. 7a 
mosissima, Hohen. in Hb, Lenkoran. Unio Itin. 1838, non Fischer. 
Mile Land. Abyssinia, Q. Dillon! Nubia, Ehrenberg! Sennaar, Kotschy! 
