416 Filices. 



gis, obtusis, integerrimis, utrinqae pubescentibus; stipite 

 rhachique nudis , glabris. 



AUosorus aquilinus Presl. Pteridogr. 153. 



In nemoribus sylvisque siccis frequcntis- 

 sime. Fructificat aestate. 2|. 



Bhizoma horizontale, repens. Stipites ad partem in- 

 feriorera profande in terrani descendcntcm fusco - ni{J[ri, 

 subtomentosi, oblique secti aquilam duplicem quodam- 

 modo referentes. 



Blechnum Linn., Endl. 

 SasSleria Kaulf. Lomarla Willd. Stegania Brown. 



Sporangia in soros lineares gfeminos, costae utrinque 

 parallelos continuos collecta. Indusia scariosa, fornicata, 

 contiuua, versus costam libera. 



*) Blechna legitima. Indusia intramarg;inalia. Frons 

 fertilis vix mutata. 



1. Blechnum boreale Swartz in Schrad. Joum. 1800. 



2. 75. Engl.Bot. t.ll59. Sckkuhr, Crypt. 102. t. 110. 



Smith. Brit. 3. 1135. Willd. Spec. 5. 408. 



Frondibus pinnatisectis, glabris; segmentis integerri- 

 mis, acutiusculis, leviter falcatis, e basi lata in fronde 

 fertili anguste linearibus, in sterili lineari- lanceolatis; 

 illis subrepandis. 



B. Spicant With. Bot. Arr. 765. Roth. Germ. 3. 44. 



Osmunda borealis Salisb. Prod. 402. 



Osmunda Spicant Linn. Spec. 1522. Flor. Dan. t. 99. 

 Curt. Lond. 2. t. 67. 



Onoclea Spicant Hojfm. Germ. 2. 11. 



Struthiopteris Spicant Weiss. Crypt. 287. 



Acrostichum Spicant Sibth. Oxon. 267. 



In locis neraorosis, umbrosis, humidis. (Te- 

 geler Heide, Junfjfernheide, Grunewald [Dr. Bn- 

 the].) Fructificat Augusto, Septerabri. 2j. 



Badix librosa, caespitosa. Frondes fertiles plures, erec- 

 tae; steriles crebriores, incumbentes vcl erectiusculae. 



