LXVII. RUBIACEJ2. 155 



rooted herb. Leaves broad or narrow, sessile ; stipules of 3-4 bristles on 

 each side ; flowers lilac-purple, in many-flowered, pedimcled heads or short 

 spikes. Flowers very rarely 4-parted. 



17. SPERMACOCE, Mey. 



Calyx-tube ovate or turbinate ; limb 2~4-lobed, sometimes 

 with intermediate accessory teeth. Corolla salver- or funnel- 

 shaped, 1-lobed. Stigma 2-fid or undivided. Fruit crowned 

 with the calyx, dry, 2-celled ; carpels separating into two 1- 

 seeded pieces from the apex, one closed by the adnate septum, 

 the other open. 8eed oval-oblong, with a longitudinal furrow. 

 —Fl. Cap. m.p. 23. 



Tropical herbs or undershrubs, with 4-sided branches, opposite leaves, and 

 sheathing, bristle-fringed stipules. Flowers axillary, sessile, crowded. — 5. 

 Natcdensis, our only species, occurs at K^atal. 



18. MITRACARPUM, Zucc. 



Calyx- tube ovate ; limb 4-toothed, 2 of the teeth larger 

 than the others. Corolla salver-shaped, with a terete tube, 

 having within the base a ring of hairs ; throat nude ; limb 4- 

 lobed. Stigma 2-fid. Capsule membranous, crowned with the 

 calyx, 2-celled, with circumscissile dehiscence. — Fl. Cap. iii. p. 

 25. 



Herbs, resembling Spermacoce. — M. Dt'egeanum, our only species, grows 

 in Natal. It is hairy, with lanceolate revolute-margined leaves, and flowers 

 in capitate whorls or fascicles. 



19. HYDROPHYLAX, Linn. f. 



Calyx-tube ovate, angular ; limb sharply 4-toothed. Corolla 

 widely funnel-shaped, 4-lobed. Anthers sessile in the throat, 

 exserted, linear-oblong. Stigma roundly 2-lobed. Fruit dry, 

 corky, angular, lanceolate or oblong, crowned with the calyx, 

 2-celled.— F/. Cap. iii. 79. 25. 



Glabrous, creeping, maritime hd'hs. Stems terete. Leaves ovate-oblong, 

 fleshy, joined with the stipules at base into a cup-like, toothed sheath. 

 Flowei*s axillary, sessile, 1-2 together. — H. carnosa, Sond., our only species, 

 occurs in Natal ; it comes close to S. maritima, Linn. 



Tribe 7. Anthospeeme^. (Gen. 20-23.) 

 20. GALOPINA, Thunb. 



Flowers often polygamous. Calyx-tube obovate ; limb 4- 

 toothed, very small. Corolla subrotate, 4-5-parted ; lobes ob- 

 long, lanceolate, patent-reflexed. Stamens 3-5, in the base of 

 the corolla ; anthers oblong, slightly exserted. Styles 2, with 

 long, hairy stigmas. Fruit obovate-didymous, of 2 indehiscent, 



