54 Lxx. RUBIACE.E (hiern). [Oldeulanclla. 



high, erect, branched or sometimes simple. Branches snbtetragonal, the 

 younger ones hei'baceous, the older woody and purplish. Leaves 

 Itmceolate ovate or subliuear, of a yellowish green colour beneath, 

 narrowed at both ends, subsessile or sessile, membranous, margins 

 revolate, fasciculate by the presence of abbrev^iated axillary shoots; ^2 

 by 1^-4 in. ; stipules short, truncate, tipped with 4 or 5 subulate puberu- 

 lous set89. Flowers about ^ in. long, tetramerous, shortly pedicellate, 

 in terminal usually trichotomous densely corymbose terminal cymes. 

 Calyx coriaceous ; tube puberulous, campanulate ; lobes lanceolate- 

 subulate, longer than the tube, at length recurving at the tip. Corolla 

 f annel-shaped, shortly exceeding or nearly equalling the calyx, hairy 

 inside. Filaments as long as the oblong half exserted anthers. Capsule 

 subglobose, -^^ in. diameter, loculicidal above ; seeds angular ; valves at 

 length cleft at the apex. — Agathisaidhemum Bojerl, Klotzsch in Peters 

 Mossamb. p. 294 ; A. Petersii, Klotzsch I.e. p. 295 ; Hedyotls Bojerl, 

 Vatke in Oesterr. Bot. Zeitschrift xxv. p. 232 (1875). 



Mozamb. Bistr. Zanzibar, Bojer ! Kirk! HUdebrandt ! Peters! ; Shupanga, 

 Kirk ! ; Mozambique, Forbes ! ; Querimba, Peters ! 



Soutb Central r South African Gold Fields, Baines! 



Occurs also in Madagascar and the Comoros. 



Very near the Natal H. chlorojphylla, Hochst., from which it diifers by usually 

 rather smaller leaves and shorter internodes. 



3. O. g'lobosa, Hiern. Somewhat shrubby and branched at the 

 base, puberulous above, of a yellowish colour. Branches erect, 

 obtusely 4- sided, \\ feet high. Leaves elliptical, obtuse or mucronate, 

 somewhat narrowed to a sessile base, often fasiculate by the presence 

 of abbreviated axillary shoots, 1-2 by ^1 in. ; stipules ovate tridentate, 

 \ in. long. Flowers tetramerous, \ in. long, subsessile, crowded in 

 solitary or ternate dense terminal globose heads ^-1 in. diameter. 

 Calyx coriaceous, puberulous ; lobes lanceolate-sabulate, elongating in 

 fruit ; occasionally some minute intermediate subulate teeth exti'a ; 

 tube short. Corolla funnel-shaped, rather exceeding the calyx ; throat 

 somewhat hairy. Anthers half exserted. Capsule subglobose but 

 somewhat compressed, t2~tV i^- broad, furrowed down the broader 

 sides, loculicidal at the apex. Seeds angular. — Agathisanthemum glo- 

 hosurrij Klotzsch in Peters Mossamb. p. 294 ; Hedyotls globosa, Hochst. 

 in Hb, Schimp. Abyss, ii. n. 512 ; A. Rich. Fl. Abyss, i. p. 360. 



urile Xiand. Abyssinia, Schimjper! Q. Dillon. 



4. O. decumbens, Hlem. Erect or decumbent, annual or peren- 

 nial, glabrous in most parts, shining, smooth, ^3 feet long. Branches 

 dichotomous, slender, herbaceous. Leaves lanceolate, acute, faintly 

 nerved, subscabrous, wedge-shaped at the subsessile base ; f-lj by 

 ^\ in. ; stipules very short and truncate or ovate, subciliate. Flowers 

 tetramerous, \-^ in. long, much exceeding the calyx, deep blue or lilac, 

 pedicellate, in lax or divaricate mostly terminal cymes (a solitary 

 flower often occurs in the forks of the branches). Calyx small ; 

 teeth lanceolate-subulate as long as the tube Corolla salver-shaped ; 

 tube much exceedins: the calyx, slender below, funnel-shaped above ; 



