41 93 
and broader: pinne up to 15cm long by 3'/»—4 cm broad; segments 5 mm broad, 
coste above and margins excepted quite glabrous, 3) stipe, rachis and coste 
beneath rather densely scaly, the scales rigid, nearly black, more or less dentate 
with a long fibrillose apex, the cell-walls thick and dark (fig. 3?*). 4) veins 10— 11, 
more distinct than in the type. 
From D. ctenilis it differs by fewer veins and medial or supramedial sori 
and by the shorter teeth of the scales. 
Besides the specimens enumerated by Rosenstock (I. c.) I have seen: 
Santa Catharina: Itajahy, E. ULE nr. 190 (RB). 
Parana: Maréchal Mallett, P. DusÉN nr. 3068 (C). 
Minas Geraes: Serra do S. José d'El Rey, A. SirLvEinA nr. 358 (C). 
Most specimens referred hereto with doubt by RosENsTOCK belong to D. sub- 
marginalis. 
33. Dryopteris ctenitis (Link) O. Ktze. Rev. 2: 812. 1891; C. Chr. Ind. 260. 
Syn. Aspidium clenitis Link, Hort. Berol. 2: 122. 1833! 
Nephrodium ctenitis Bak. Syn. 265. 1867. 
Lastrea distans Brack. U. S. Expl. Exp. 16: 192. 1854! 
Aspidium squamigerum Mett. msc. (Bak. Syn. 265 nota)! (non Fée nec Mann). 
Nephrodium squamigerum Rosenst. Hedwigia 45: 224. 1904. 
Aspidium amaurolepis Fée, Cr. vasc. Brés. 1: 137 tab. 44 fig. 2. 1869! 
Aspidium isabellinum Fée, Cr. vasc. Brés. 1: 137 tab. 45 fig. 2. 1869! 
Dryopleris isabellina C. Chr. Ind. 272. 1905. 
Nephrodium caripense 8 squamigerum Bak. Fl. Bras. 1?: 474. 1870. 
Link founded this species on plants cultivated in the Botanical Garden of 
Berlin and the type specimen (B!) belongs to a somewhat abnormal form, which 
after a detailed analysis of the original specimens of each was found to be identical 
with A. squamigerum Mett. and A. amaurolepis Fée. The species is well figured by 
FÉE on the plates quoted above. The rudimentary lower pinnz of A. isabellinum 
(tab. 45 fig. 2) are not normal ones; in some specimens I have found similar ab- 
normal pinne, which are not always the lower ones; in such pinne the lower 
segments only become fully developed, the costa suddenly terminating in a 
scaly bud. 
D. clenitis is intermediate between D. falciculata and D. submarginalis and it 
is very difficult to distinguish some of its forms from these species, still I think 
the following characters mark it sufficiently. 
Leaf as dried dark-brown or red-brown, thin. Rachis clothed with dark and 
stiff, fibrillose scales with a long hair-like apex, shortly pubescent in the furrows 
above. Pinnz rather distant, up to 20 cm long by 3—4 cm broad, the edges 
parallel from the base to above the middle. Coste beneath more or less short- 
D. K. D. Vidensk. Selsk. Skr., 7. Reekke, naturvidensk. og mathem. Afd. X 2. 13 
