Spermacoce.'] Lxx. rubiacej: (hiern). 237 



several together, in terminal and axillary somewhat leafy and sessile 

 heads of ^— J in. diam., based by the dilated sheaths of the stipules of 

 1-3 pairs of leaves ; bracteoles subulate. Calyx-teeth 4, subequal, 

 linear-spathulate, rather shorter than the pubescent fruit. Corolla- 

 tube slender, short. — Borreria hebecarpa, Hochst. in Hb. Schimp 

 Abyss, iii. n. 1712 (1840) ; A. Rich. Fl. Abyss, i. p. 347. 



Vpper Guinea. Niger Expedition, at Nupe, Barter! (common in moist cre- 

 vices of rocks, flowers reddish white). 



Wile Xiand. Abyssinia, Schimper ! Hildebrandt I Gallabat, Schweinfurth ! Djur- 

 land, Schweinfurth ! 



?Var. major, Schweinf. in Herb. Gallab. n. 1479. Coarser, more robust, 1^-2 ft. 

 high. Leaves ranging up to 3 by ^ in. Bracteoles very numerous, exceeding the 

 subulate calyx-teeth. 



urile Xiand. Gall&hiit, Schweinf urth ! Perhaps a distinct species. 



Borreria negkcta, A. Rich. Fl. Abyss, i. p. 347, appears to be a dwarf state of S. 

 hebecarpa, Oliv. ; 1 have seen no authentic specimen. 



9. S. leucadea, Hochst. in Eh. Kotsch. Nuh. n. 259 (1841). 

 Erect annual, hispid-hirsute with whitish hairs, but little branched. 

 Stem and branches obtusely 4-sided, subterete below, somewhat com- 

 pressed above. Leaves linear or lanceolate, acute, narrowed towards 

 the sessile base, scabrous above, 1-2:}- by ^— ^ in. ; stipules with a 

 sheath of about J in. long and about 5 equalling setoe, pale yellowish. 

 Flowers small, several together, verticillate and capitate, in terminal 

 and axillary sessile bracteate or leafy heads of ^1^ in. diam. Calyx- 

 teeth 4, of nearly the same length, lanceolate, longer than the ovary, 

 shorter than the fruit, persistent, hairy. Corolla-tube short. Capsule 

 about ^ in. long, hairy above ; seeds nearly as long. 



STile Xiand. Cordofan, in savannahs, Kotschy ! 



10. S. stacliydea?, DC. Frodr. iv. p. 554. A robust branched 

 annual, 2 feet high or more. Stem and branches obtusely 4-sided, 

 pubescent. Leaves linear or linear-elliptical, narrowed towards both 

 ends, sessile, scabrous, 3-5 by ^-J in., lateral veins depressed on the 

 upper surface ; stipules with tomentellous sheath and 6 or more longer 

 setse. Flowers pale blue, numerous, crowded in terminal or subter- 

 minal sessile leafy heads of ^1 in. diam. ; bracts ovate or lanceolate, 

 subfoliaceous ; bracteoles slender, falling short of the calyx-teeth. 

 Calyx- teeth 4, lanceolate-subulate, shortly hirsute-pubescent outside, 

 equalling the ovary. Corolla-tube about equalling the calyx-teeth. 

 Fruit shortly pubescent above, nearly ^ in. long exclusive of the per- 

 sistent calyx-teeth. 



Upper Guinea. Niger Expedition, at Nupe, Barter/ 

 Jtortlx Central. Bakel, Leprieur ex DC. I. c. 

 I have not seen the type of De CandoUe's species. 



11. S. radlata, Sieber^ PI. Seneg. exsicc. n. 8. A hirsute stiff 

 erect annual, 1-2 feet high. Stems and branches subterete below, 

 somewhat angular above. Leaves linear, narrowed towards both ends, 

 acute, rigid, spreading, sessile, nearly glabrescent above, more or less 

 hispid on the prominent midrib beneath, J-2^ in. long, lateral veins 



