REVISION OF EXTRA -TROPICAL SOUTH AFRICAN ASCLEPIADAOEiE. 457 8. 0. Zeyheri Schltr. I. c. 3 (1895). South-east Cape Colony. 4. C. oBTusiFOLiUxM L. f. Suppl. 169 (1781); Thbg. Prodr. i. 16 (1800) ; Thbg. Fl. Cap. ii. 159 (1823) ; Willd. Spec. i. part 2, 1253 (1798); Eoem. & Schult. Syst. vi. 101 (1820) (sub crassifolio) ; Schltr. I. c. 4 (1895). Cynoctonwm Dregeanum Dene. I.e. 531 (1844). Cape Colony, Kaflfraria, Pondoland, Natal. 5. C. CAPENSE L. f. Suppl. 168 (1781) ; Thbg. Prodr. 47 (1800) ; Fl. Cap. ed. 2, 159 (1823) ; Willd. Spec. i. part 2, 1253 (1798) ; E. Br. in Wern. Soc. i. 46 (1811) ; Roem. & Schult. Syst. vi. 102 (1820) ; Schltr. L c. 6 (1895). Cynoctonum capense E. Mey. I. c. 216 (1837); Dene. I.e. 530 (1844). Bunburia elliptica Harv. I.e. 417 (1838). VincetoxiGum capense Schltr. in Bol. & MacOwan, Herb. Norm. Austro-Afr. No. 1321 (1892). Cape Colony, Kaffraria, Pondoland, Natal. 6. C. NATALiTiuM Schltr. in Engl. Jahrb. xviii. Beibl. 45, 32 (1894). Albany, Kaffraria, Pondoland, Natal, Zululand. 7. C. AFRicANUM Hoffmannsegg, Verz. Pfl. 54 (1824); Schltr. I. c. XX. Beibl. 50, 5 (1895). Perlploca africana L. Spec. PI. 309 (1751) ; Willd. Spec. PI. i. 2, 1251 (1798) ; Thbg. Prodr. 47 (1800); Poir. Encycl. v. 190 (1804); Thbg. Fl. Cap. (ed. 1823), 152. Cynanchum crassifoliuin R. Br. I.e. 46 (1809). C. pilosum R. Br. I.e. 46 (1809). Cynoetonum erassifolium E. Mey. I.e. 216 (1837) ; Dene. I. e. 530 (1844). C. pilosum E. Mey. I. c. 216 (1837). Vince- toxieum africanum Bol. MS. in Herb. Norm. Austro-Afr. No. 1087. South-west Cape Colony. 8. C. scHisTOGLossuM Schltr. in Journ. Bot. (1895), 271. Natal, Zululand. XXII. Flanagania Schltr. in Engl. Jahrb. xviii. Beibl. 45, 10 (1894). 1. F. orangeana Schltr. I.e. 10 (1894). Orange Free State. XXIII. Glossostephanus E. Mey. Comm. PI. Afr. Austr. 218 (1836) ; Dene, in DC. Prodr. viii. 520 (1844) ; Bth. & Hk. f. Gen. PI. ii. 759 (1876). ? Oneinema Arn. in Edin. Phil. Mag. xvii. 261 (1834) ; Dene. I. e. 526 (1844). 1. G. linearis E. Mey. I.e. 218 (1836) ; Dene. I.e. 520 (1844). Astephanus linearis R. Br. in Wern. Soc. i. 54 (1811) ; Dene. I. c. 508 (1844). Apocynum lineare Linn. f. Suppl. 169 (1781) ; Thunb. Flor. Cap. 162 (1823). / Oneinema Eoxburghii Arn. I. e. 261 (1834). Caledon, Swellendam, Riversdale, George, Knysna, Humans- dorp. XXIV. Sarcostemma R. Br. in Wern. Soc. i. 50 (1811) ; Dene, in DC. Prodr. viii. 538 (1844) ; Bth. & Hk. f. Gen. PI. ii. 763 (1876). Sarcoeyphula Harv. Thes. Cap. ii. 58, t. 191 (1863). 1. S. APHYLLUM R. Br. I. e. 50 (1811) ; E. Mey. Comm. PI. Afr. Austr. 221 (1837) ; Roem. & Schult. Syst. vi. 116 (1820) ; Dene. Journal of Botany. — Vol. 34. [Nov. 1896.] 2 h