318 
THE FERNS OF SOUTH AFRICA 
M. salicifolia Schrad. Kze, Linn . io, 488; Schl. Adum . 11; Pappe 
and Rawson, 47; Kuhn, Fil. Afr. 175; C. Chr. Ind. 415. 
M. Dregeana. Presl. 
M. natalensis. Presl. 
M. fraxinea Sm., var. salicifolia. McKen. 
Tropics and sub-tropics ; growing in ravines in shade. 
West. — Lakes at George (Lady Barkly, Holland); Knysna (T. H. Rex, 
833)- 
East. — Tzitzikamma (Drege, Atherstone); Storm’s River (Roth). 
Kafif.— -Between Omsamcaba and Omsamwobo (Drege); Bazija (Baur). 
Natal. — Maritzburg (Krauss) ; coast to Maritzburg (Wood); Great 
Noodsberg, Inanda, Zwaartkop, Field’s Hill (McKen); Umbilo Falls, 
Umpumulo (Buchanan); Buccleuch (W. Leighton). 
Transvaal. — Drakensberg (McLea, 53); Marovuni (Burtt-Davy, 233); 
Haenertsberg (Eastwood; Mrs Pott, 4622,4682 and 4683, lobed) ; 
Houtboschberg (W. Nelson, 494); Barberton (Miss Williams, 785). 
Rhodesia. — Umtali (J. F. Darling; Mrs Bennett); Penahalonga 
(Holland); Chirinda Forest, 3700 — 4000 ft (Swyn. 826); Mt Pene, 
6500 — 7000 ft (Swyn. 826 a, 6025). 
Division III. Ophioglossales. 
ORDER V. OPHIOGLOSSACEAE. 
Genus 56. OPHIOGLOSSUM Linn. 
Capsules without a ring, permanent, and united into a 
line on each side the spike, which is separate from the barren 
pinna. Vernation erect. Fertile segment of the frond simple. 
A small but almost cosmopolitan genus of plants having little 
resemblance to ferns in general outline, and doubtless often 
overlooked. They are known as Adder’s tongue ferns, and 
different authors have very different opinions as to how many 
species they should be divided into. Christensen retains 43 
species. 
Key to the species : 
§ Fertile and barren fronds distinct to the crown. (Rhizoglossum 
Presl.) 
195. 0 . Bergianum. 
§§ Fertile spike single, arising from the base of the barren segment 
or from its stipe. (Eu-ophioglossum.) 
