TAB. LXXVII. 
Nothochl^na Rawsoni, Pappe. 
Caudice longe repente squamis membranaceis rigidis subulatis 
nigro - costatis paleaceo, stipltibiis approximatis deimim 
nudis purpureo-ebeneis, frondibus linearibus spitbamsBis 
pinnatis, pinnis alternis remotiusculis subsessilibus cordato- 
ovatis obtusis crasso-coriaceis lobato-pinnatifidis supra 
nudis subtus densisslme albido-v.-ferrugineo-pannoso-vil- 
losis, lobis 5-9 rotundatis obtusis, marginibus subincrassatis 
patentibus, soris marginalibus continuis, capsulis nigris, 
Nothochl^na Eawsoni, Pappe, in Pappe and Rawson^s Syn, 
FiL Afr, Austr. p. 42. 
Hab. On hills between Spectakel and Komaggas, Namaqua- 
land, S. Africa, Rev, H, Whitehead, 1856. 
Much as this 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. Whitehead. 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 ; f. 4. Portion of sorus ; f. 5. Capsule; 
6. Plairs from the tomentum at the back of the frond; all 
more or less magnified. 
Ceni 2. T. 77. 
