TAB. LXXVII. 

 Nothochl.ena Eawsoni, Pappe. 



Caudice longe repente squamis membranaceis rigidis subulatis 

 nigro - costatis paleaceo, stipitibus approximatis demum 

 nudis purpureo-ebeneis, frondibus linearibus spithamseis 

 pinnatis, pinnis alternis remotiusculis subsessilibus cordato- 

 ovatis obtusis crasso-coriaceis lobato-pinnatifidis supra 

 nudis subtus densissinie albido-v.-ferrugineo-pannoso-vil- 

 losis, lobis 5-9 rotundatis obtusis, marginibus subincrassatis 

 patentibus, soris marginalibus continuis, capsulis nigris, 



Nothochlasna Eawsoni, Pappe, in Pappe and Rawson's Syn. 

 Fil. Afr. Austr. p. 42. 



Hab. On bills between Spectakel and Komaggas, Namaqua- 

 land, S. Africa, Rev. H. Whitehead, 1856. 



Much as tbis is allied in habit and general appearance to 

 the South American Nothochlcena rufa (see Tab. LII. of 

 this volume) and to some other species of that Genus, and 

 of Cheilanthes of S. America, it is in reality extremely- 

 different. The caudex is long and creeping, clothed with 

 imbricating, subulate, erose scales, which are very rigid in 

 consequence of the broad black costa which runs through the 

 centre. The pinna; are green, and free from tomentum above, 

 beneath densely woolly, sometimes rich tawny or ferruginous, 

 sometimes nearly white. The margin is not reflexed, nor at 

 all involucriform, so that the black capsules are quite exposed, 

 forming a continuous line along the margin. 



This is well described by Pappe and Eawson in their Synop- 

 sis of the Ferns of S. Africa, and is very rare in the Colony, 

 only one locality having yet been discovered, and that was 

 detected by the Rev. Mr. Jfhitehead. I am indebted to 

 Wm, Eawson, Esq. C.B., and to Eear- Admiral Sir Frederick 

 Grey, K.C.B., for fine specimens. 



Tab. LXXVII. Plant with sterile and fertile fronds of 

 Nothochlcena Rawsoni, Pappe; natural size. Fig 1. Scale 

 from the caudex ; f. 2. Upper side of a pinna ; f. 3. Under 

 side of a fertile pinna ; /. 4. Portion of sorus ; /. 5. Capsule; 

 f. 6. Hairs from the tomentum at the back of the frond; all 

 more or less magnified. 



C'EUT 2. I. 77. 



