174 F. Fedde und K. Schuster: Index novarum Siphonogamarum. [104 



Cynanchum africanum R. Br. var. ß. crassifolium N. E. Brown 1. c. p. 749 (= C. 



crassifolium R. Br. = C. rotundifolium Thunb. = Cynoctonum crassifolium 



E. Meyer = C. crassiflorum Krauss). — Kapland, Clanwilliam Div. 



(Schlechter n. 8547); Cape Div. Paarden Island (Drege n. 230, Wolley 



Dod n. 3151). 

 C. adriaticum (Beck) Fritsch 1. p. 487. 

 C. nikoense (Maxim.) Makino in Tokyo Bot. Mag. XXII (1908). p. 169 (= Vince- 



toxicum macrophylhim var. nikoense Maxim. = V. acuminatum Miq.). — 



Japan. 



C. umplexicaule (Sieb, et Zucc.) Hemsl. var. castaneum Makino 1. c. XXIII (1909). 



p. 22. — ibid. 

 Decanema grandiflorum Jumelle et Perrier de la Bathie in Ann. Mus. Colon. 



Marseille XVI (1908). p. 195; siehe auch Fedde, Rep. nov. spec. IX (1911). 



p. 299. — N.-W.-Madagaskar. 

 Duvalia Pillansii N. E. Brown in Thiselt.-Dyer, Flora Capensis IV. Sect. I. 



pt. VI (1909). p. 1026. — Kapland, Aberdeen Div. (Pillans n. 42). 



var. ß. albanka N. E. Brown 1. c. p. 1027. — Kapland, Coast Region, 

 Albany Div. (Pillans n. 19). 



D. elegans Haw. var. /?. seminuda N. E. Brown 1. c. p. 1028. — ibid., Rivers- 



dale Div. (Pillans n. 682). 



var. y. namaquana N. E. Brown 1. c. p. 1028. — Klein-Namaqualand 

 (Barkly n. 34). 

 D. modesta N. E. Brown 1. c. p. 1028. — Kapland, Central Region, Aberdeen 



Div. (Pillans n. 35); Somerset Div. (Pillans n. 35). 

 D. pubescens N. E. Brown 1. c. p. 1029. — Klein-Namaqualand (Pillans n. 94). 



var. major N. E. Brown 1. c. p. 1029. — ibid. 

 D. reclinata Haw. var. ß. bifida N. E. Brown 1. c. p. 1030. — Kapland, Central 



Region, Somerset Div. (Pillans n. 27). 



var. y. angulata X. E. Brown 1. c. p. 1030. — Kapland, Ladismith Div. 

 (Pillans n. 615). 

 D. hirtella Sweet var. ß. obscura N. E. Brown 1. c. p. 1031. — ibid. (Pillans 



n. 638). 



var. ;/. minor N. E. Brown 1. c. p. 1031. — ibid. Central Region (Pillans 

 n. 628). 

 D. maculala N. E. Brown in Thiselt.-Dyer, Flora Capensis IV. Sect. I, pl. VI. 



(1909). p. 1033. — ibid. (Pillans n. 31). 



D. parviflora N. E. Brown 1. c. p. 1034. — ibid. (Pillans n. 621). 



Ectadium latifolium N. E. Brown in Thiselt.-Dyer, Fl. Cap. IV. Sect. I. pt. IV 

 (1907). p. 532 (= E. virgatum E. Meyer var. latifolium Schinz.). — Gross- 

 Namaqualand (Schenck n. 11; Schinz n. 30). 



Emplectanthus N. E. Brown in Thiselt.-Dyer, Fl. Cap. IV. Sect. I. pt. V (1908). 

 p. 771. 



This curious genus is exceedingly like Tylophora in general appea- 

 rance and the species would probably be referred to it unless examined, 

 but the Corona is quite different from that of any Tylophora, and much 

 resembles that of some species of Brachystelma and Caralluma; the 

 pollen-masses are also pellucid-margined as in those genera, whilst the 

 follicles resemble those of the genus Miocreuxia, and it may possibly be 

 of hybrid origin between that genus and Tylophora. 



E. Gerrardi N. E. Brown 1. c. p. 772. — Zululand (Gerrard n. 2167). 



