504 LXix. RUBiACEiF. [Tavdavel 



oblong, rather shorter than the filaments ; filaments inserted 

 between the corolla-lobes ; style exserted, about equalling the 

 stamens, puberulous near the apex ; stigma hemispherical-capitate, 

 ciliolate ; ovary 2-celled ; ovules solitary, attached at the middle ; 

 disk rather fleshy, glabrous, a little elevated, annular. 



HriLLA. — In neglected fields near LopoUo, not yet seen in secondary 

 thickets ; fl. Jan. 1860. No. 3238. In moist pastures near Lopollo ; 

 fl. 10 Jan. 1860. No. 3239- In bushy places after clearing for 

 cultivation and afterwards neglected, near Humpata ; fl. beginning of 

 April 1860. No. 3230. 



3. T. ocymoides. 



Spermacoce ocymoides Burm. Fl. Ind. p. 34, t. 13, fig. 1 (1768). 

 .S'. ramisparsa Pohl ex DC, I.e., p. 560; Hiern, I.e., p. 238. 



Sierra Leone. — Fl. and fr. Sept. 1853. No. 3248. On herbaceous 

 declivities amongst low bushes, above Freetown, very abundant ; fl. 

 and fr. Sept. 1853. No. 3249. 



4. T. scabra. 



Diodia scabra Schum. & Thonn. in Dansk. Vidensk. Selskr. iii. 

 p. 96 (1828). Spermacoce Ruellice DC. Prodr. iv. p. 554 (1830) ; 

 Hiern, I.e., p. 238. Bon-eria scabra K. Schum. in Engl. Pfl. Ost-Afr. 

 C. p. 394 (1895). 



Sierra Leone. — In hilly, ferruginous-muddy places, among low 

 herbs, above Freetown ; fl. Sept. 1853. A small plant with rather 

 narrower corolla than usual. No. 3240. 



GoLUNGO Alto. — In bushy pastures flooded in summer, near 

 Camilungo, rather scarce ; fl. and fr. April 1855. No. 3234. A weak, 

 erect or ascending, annual herb, with white flowers, elongated style, 

 capitate stigma, and 2-celled, 2-valved capsule. In rather poor 

 wooded meadows, near Ponte de Felix Simoes ; fl. and fr. May 

 1865. The flowers occasionally were almost bilabiaiely divided. 

 No. 3235- A herb, 1 to H ft. high, scattered throughout with white 

 hairs ; stem erect, turning purple ; flowers white, very fugaceous ; 

 calyx investing the ovary, the limb 4-cleft with two opposite lobes 

 almost double the other two in length and breadth. On elevated, 

 sparingly grassy slopes among the mountains of Quilombo-Quiacatubia ; 

 fl. middle of April 1855. No. 3241. 



Ambaca. — An annual, divaricately branched herb, with purple, 

 shaggy stem and branches, and white flowers. Among plantations of 

 Manihnt utilissima, between Halo and Zamba ; fl. and fr. Oct. 1856. 

 No. 3237. 



5. T. arvensis Hiern sp. n. 



An erect, scabrid, hispid -hirsute, annual herb, 4 to 8 in. high, 

 simple or loosely branched ; hairs whitish, more or less spreading, 

 thicker towards the base, often arising from a minutely tubercular 

 or scaly base ; internodes equalling or shorter than the leaves ; 

 leaves narrowly linear-elliptical, narrowed gradually at both 

 ends, acute and apiculate at the apex, sessile, scabrid, hairy on 

 both faces, slightly yellowish-green above, grey -green beneath, 

 1 to li in. long by g to ^ in. broad, sessile; margin rough, 

 revolute, uni-nerved ; stipules shortly adnate to the bases of the 

 leaves, hairy outside, glabrous and shining inside, truncate, with 



