Subgenus I. Lastrea Bory, emend. C. Chr. 
All indigenous tropical American species of this large subgenus are bipinnatifid 
or bipinnate and were all described in my earlier papers with the exception of some 
few, which have been described by myself and other pteridologists since the publication 
of the first part of this monograph. Below I mention the newer species I- have seen, 
and add the original diagnosis of those described by myself. D. Rosei Maxon I have 
not seen, but it is evidently a good species and, therefore, I place it below in its 
proper place with number. On the other hand two new species from South Brasil, 
described by Prof. ROSENSTOcK fall presumably under species dealt with hy me 
before, viz D. Janeirensis Ros. Hedwigia 56: 367. 1915 from Serra do ‘Ttatiaya, 
which is scarcely different from D. rivularioides, and D. Tamandarei Ros. |. ¢. 365-366 
from Sao Paulo, which is probably a form of the variable D. pachyrachis. A third 
species described by Rosenstock, D, Herzogii (Medd. Rijk’s Herb. Leiden nr. 19: 15. 
1913) from Bolivia, is possibly a form of D. rudis. T hese three newer species I have 
not listed. Some new varieties of old species and some new localites are added below. 
_ The subgenus Glaphyropteris 1 now prefer to treat as a section of Lastrea; 
thus enlarged this subgenus (or genus) is very well delimitated and cannot be con- 
founded with any other subgenus as far as the bipinnatifid-bipinnate species are con- 
cerned. Whether the subgenus really includes also decompound species may be 
doubted. The Old-World is inhabited by several decompound species, which can- 
not be referred either to Eudryopteris, Ctenitis or Polystichopsis; it is probable that 
some of these species must be considered decompound Lastreas. One of these species 
has of late years been recorded rather frequently from South America, probably 
escaped from gardens, it is 
Dryopteris setigera (Bl.) O. Ktze. 
Frequent round Rio Janeiro, f. inst. GLAzIOU nr. 15761 (B) and also in the 
7 and Argentina (f. inst. S. 
Catharina, Blumenau, HarRcHEN, ed. Ros. Fil. austr. bras. exsic. nr. 205 (B). — 
This species is easily distinguished from all American decompound species by 
hairs and nearly without scales; its 
‘adripint S species of Polystichopsis; the small 
ae exindusiate sori have the sporangia intermixed with long whitish hairs. D. setigera 
is in many forms widely spread through South and East Asia and Polynesia. 
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