$4 
ROSENSTOCK made two species, which to me are quite identical. He believed 
that the specimens named by him D. Martiana were referable to Polypodium sub- 
incisum Mart.; but he was certainly wrong in this, Martius’ species being our D. 
macrosora. From this D. abundans differs by its more finely cut leaf, its thinner 
texture, the not shining, dark-green surfaces and by its very few scales of the co- 
stules beneath. The pubescence and basal scales are essentially the same. D. abundans 
recalls rather D. adenopteris by habit and short pubescence, but the basal scales 
are widely different and it is not glanduloso-pubescent. It 
is till now known from the Southern Brazilian provinces 
only: ; 
Rio Grande do Sul: Legoas do Herval do Paredao, C. JiRGENs 
nr. 195 (R, type, distributed as D. Martiana var. abundans Ros. 
Fil. austrobras. exs. nr. 367 (B, Rg, W). 
Parana: Villa Nova, ANNIEs nr. 71 (R= D. Martiana Ros., distributed 
partly as Polypodium subincisum Willd. partly as D. Martiana 
Ros. Fil. austrobras. exs. nr. 117 (B. Rg, RB, W) 
Without locality: RrepEL (Rg). 
341. Dryopteris Wacketii Ros. ms., n. sp. — Fig. 17 b. 
Type from Brazil: Sao Paulo, Pilar, leg. M. WACKET 
no. 223 (R). . 
herbacea quadripinnatifida. Stipite fusco, versus basin 
squamis lanceolato-linearibus, castaneis, remote et leviter 
D. abun. “entatis subdense paleaceo, et ut rachi pilis brevissimis 
dans Ros. b segment of _ aliis longis adpressis imprimis versus basin intermixtis dense 
D. Wacketii Ros, < 2. puberula hirtaque. Lamina herbacea, sicca atroviridi, quadri- 
. pinnatifida. Pinnis usque ad 40 cm longis, pinnulis 8 cm 
longis, 2'/2 em latis, usque ad costulam pinnatifidis, supremis solum basi adnatis, ter- 
tiariis densis, basi utrinque dilatatis, inferioribus liberis, superioribus contiguis, 1—1*/2 
cm longis, 3—4 mm latis, obtusis, profunde pinnatifidis; segmentis quaternariis falcatis, 
obtusis. Pagina superiore ad costas costulasque dense ad venas parcius strigosa, 
inferiore ad costas costulasque pilis longis patentibus et brevibus intermixtis dense 
hirtis, ad parenchyma _brevissime puberula et glandulosa. Rachi ut costis subtus 
Squamis parvis castaneis sparsissime onusta. Venis furcatis vel subpinnatifidis; venula 
basali anteriore breviore sorifera. Soro in quoque lobo singulo costulae pinnulae 
tertiariae approximato, exindusiato, parvo; sporangiis paucis, laxe coacervatis, inter- 
dum pilis longis intermixtis. 
_ This has no near relative in Brazil; it bears some resemblance to D. Karsteniana 
_ by its dense pubescense and narrow, deeply pinnatifid tertiary pinnules, but the 
glandulose underside and the dense short pubescence of ‘the rachis besides the 
Species anstrobrasiliensis major, bimetralis, pilosa, 
