.] LXX. RUBIACEiE (HIERN). 45 



Anthers obtuse, dehiscing by apical pores. — Gortusoides, Afzel. in Hb. 

 Banks, et ex Benn. I. c. 



Upper Guinea. Sierra Leone, Afzdiua! ; on rocks in the rivers, Sierra del 

 Crystal, 1° N. lat., Mann! 



Apparently identical with A. verticillatum. Wall, in Roxb. Fl. Ind ed Carev ii 

 325(1824), a native of Nipal. ' * "^' ' 



9. PENTAS, Benth. ; Benth. et Hook. f. Gen. PI. ii. p. 54. 

 Calyx-tube campanulate-turbinate, short, ribbed at least in fruit ; 

 lobes, usually 5, unequal, some usually enlarged at least in fruit, 

 frequently with one or more exterior alternating teeth, persistent. 

 Corolla tubular ; tube more or less funnel-shaped above, especially in 

 the flowers with included anthers, bearded within the throat; lobes 

 somewhat unequal, valvate in aestivation. Anthers glabrous, linear- 

 oblong, inserted within or below the throat of the corolla, subsessile 

 in the flowers with included anthers, on slender filaments in those 

 with exserted anthers. Disk sometimes after flowering produced into 

 a depressed cone. Ovary 2-3-celled; style filiform, more or less 

 exserted; ovules numerous. Capsule 2-celled, membranous or 

 coriaceous, loculicidally 2-valved, many-seeded. Valves persistent. — 

 Shrubby herbs or small shrubs with subterete branches and opposite 

 leaves. Stipules multipartite with subulate segments. Flowers 

 cymose, usually dimorphic by the greater or less degree of the 

 exsertion of the style - corresponding with the included or exserted 

 stamens. 



A small genus limited to Arabia, Africa and African Islands, including 

 Madagascar. 



Corolla-li"mb ^-^ in. diam. Leaves usually with numerous 

 (12-18) lateral veins on each side of the midrib. 

 Indumentum somewhat ferruginous. 



Calyx about equalling the corolla \. P. Schimperiana. 



Calyx about half the length of the corolla .... 2. P. occidentalis. 



Indumentum pallid 3. P. camea. 



Corolla-limb ^-\ in. diam. Leaves with usually less numerous 

 (about 8) lateral veins on each side of the midrib. 



Flowers |-^ in. long. Leaves dull 4. P, purpurea. 



Flowers \ in. long. Leaves shining on the upper surface. 



Habit rambling. Leaves subsessile 6. P. arvaisis. 



Habit erect. Leaves petiolate 6. F. parviflora. 



1. P. Schimperiana, Vathe in Linncea xl. p. 102 (1876). 

 Shrubby below, about 2 feet high. Pubescence short subferruginous. 

 Leaves narrowly elliptical or ovate, narrowed at both ends, many 

 (12-18) nerved, 2-6 by |-2 in. ; petiole ranging up to nearly ^ in. 

 Cymes corymbose, mostly sessile. Flowers shortly pedicelled, i in. 

 long. Calyx about equalling the corolla, all the lobes subulate or 

 narrowly lanceolate, rose-coloured. Corolla pale rose-coloured, shaggy 

 within the throat ; limb nearly ^ in. diam. Anthers (in our specimens) 

 exserted. Fruit \ in. diam. — Vignaldia Schimperiana, A. Rich. Fl. 

 Abyss, i. 358 (1847) ; Mussocnda Schimperif Hochst. in Hb. Schimp. 

 Abyss, i. n. 38, ii. nn. 838, 916. 



Wile Xiand. Abyssinia, Schimpcrf Roth! Parkyns ! Quart in Dillon! 



