rOLYPODIACEvK. 



267 



differs from it l>y the very tliin herbaceous fronds with very much smaller sori. 

 Dennstaedtia scabra MOORE (Fig. 99). MA.TSUM. et HAYATA Eniun. PI. 

 Fornios. p. 594. Bhizoma repens vermiforme recurvum rubescens versus apicem 

 dense pilosum hand squamatum, pilis rubescentibus vel albescentibus filiform i- 

 bus 2 mm. longis adpressia vel ascendentibus 3 mm. in diametro remote frondi- 

 gerum, frondibus a so 3cm. distan- 

 tibus remote radicantibus, radicibus 

 filiformibus ramosis. Stipes 16-35 

 cm. lougus medio 3 mm. crassus 

 castaneo-rubescens muricatus basi 

 srjuamato-pilosus sursum scaber niti- 

 dus subglaber supra profunde sulca- 

 tus subteres subtus convexus. Frons 

 tripinnata in ambitu triangulari- 

 ovata 12-40 

 cm. longa 11- 

 40 cm. lata 

 apice triangu- 

 lari-acuminata 

 l>asi in anibi- 

 tu triangulari- 

 obtnsa, pinnis 

 infimis longis- 

 superi- 



grada- 



simis 

 oribus 

 tim minoribus 

 versus apicem 

 subito minori- 

 bus ad dentem 

 ascendent em 

 acuminis redu- 



Fig. 99, Dennstcedtia scabra MOORE x^; a, portion of a pmnule; l>, :i 

 sorus; c, liairs on the frond. 



ctis, pinnis infimis in specimine maxinio nostro acuminato-triangularibus 24cm. 

 longis 11 cm. latis apice acuminatissimis basi triangulari-obtiisis latere inferiore 



