238 Lxx. RUBiACE^ (hiern). [Spermacoce. 



obsolete, margins subrevolnte, white, minutely scabrous; stipules 

 short, truncate, terminated by 7-9 long slender stiff* setae of |-J in. 

 Flowers capitate, white, small, numerous, in hemispherical dense 

 clusters of -^1 in. diam. terminating the stei. and branches as well as 

 the short lateral shoots. Calyx hairy above ; teeth 4, subequal, slender, 

 hairy, rather shorter than the compresse(^ r^vary. Corolla funnel- 

 shaped ; tube short. Anthers oval, shortly exserted. Style glabrous, 

 bifid at the tip. — Borreria radiata, DC. Prodr. iv. p. 542. 



Upper Guinea. Senegambia, SieberJ Perrottet ^ Lcprieur, Heudelot! Niger 

 Expedition, Baikie! at Nupe, Barter! 



KTlle Ziand. Cordofan, in sandy savannahs at Mount Kohn, Kotschy ! Djur- 

 land, Schweinfurth ! 



12. S. ramlsparsa, Told ex DC. Prodr. iv. p. 544. A branched 

 or subsimple annual weed; stem and branches erect or decum- 

 bent, mostly weak, nearly glabrous or scattered with short hairs 

 usually arranged in longitudinal rows. Leaves oval, obtuse or pointed, 

 more or less wedge-shaped at the base, submembranous, nearly gla- 

 brous, often ciliolate, rather paler beneath, ^l^ by :^| in. subsessilo 

 or shortly petiolate, veins slender ; stipules with a short broad sheath 

 and about 5 short setae equalling or rather longer than it. Flowers 

 white, very small, several together, verticillate, in small dense axillary 

 and terminal clusters ; bracteoles slender-subulate, nearly as long as 

 the ovary. Calyx-tube glabrous ; teeth 2, obtusely subulate, nearly 

 glabrous, as long as the ovary ; the 2 other teeth minute or obsolete ; 

 limb ciliolate. Corolla-tube very short. Anthers included. Style 

 very short, with 2 short arching branches. — Borreria ramisparsa, DC. 

 1. c. ; 8. ocymoidesy Baker Fl. Maurit. p. 159 ; vix Burm. 



Upper Guinea. Sierra Leone, Afzelius! Island St. Thomas, G.Bon! Sene- 

 gambia, Heudelot ! Bidjem ! Quorra, Th. Vogel ! Onitsha, Barter ! 

 A common tropical weed, occurring also in the Mascarene Islands. 



13. S. Ruelliae, DC. Prodr. iv. p. 554. A hispid-hirsute herb 

 with ascending 4-sided branches. Leaves narrowly elliptical or sub- 

 linear, apiculate, sessile, scabrid above, somewhat hispid-hirsute be- 

 neath, f-8 by ^-f in., midrib and lateral veins slender, depressed on 

 the upper surface ; stipules with very F.hort sheath and about 7 slender 

 seta) of ^-^ in. Flowers small, several together, verticillate in the 

 axils and terminal, overtopped by the leaves of the abbreviated axil- 

 lary shoots ; clusters sessile ; bracteoles subulate. Calyx with 4 hir- 

 sute teeth, 2 teeth lanceolate (longer than the ovary), persistent, oppo- 

 site the cocci, the other 2 teeth shorter than the former pair, subulate 

 or lanceolate. Corolla white, salver-shaped ; tube equalling the 

 longer calyx-t^eth. — Cfr. S. palmetorum, DC. 1. c. p. 553 et Diodia 

 scabra, Schum. et Thonn. Beskr. Guin. PI. p. 76 (1827). 



Upper Guinea. Sierra Leone, Afzelius (Herb.) ! Smeatkman ! Th. Vogel ! 

 Morson ! Barter ! Senegambia, Perrottet et Leprieur, Heudelot ! Dahomey, Burton ! 

 Abbeok ut a, 2)r. //arWsow / Niger Expedition, Barter! Ansell ! Quorra, Th. Vogel! 

 Accra, Th. Vogel ! G. Don ! Guinea, Thonning. 



Kortb Central. Bakel, Leprieur ex DC. 



