236 



FEENS : BEITISH AND FOEEIGN. 



1-2^ feet long. Ferns pinnjite; venules free. Rec&pfacles 

 punctiform, terminal. Son exserted. Special and accessory 

 mdusia conniving, and forming a oalyoiform, pedicellate, vertical 

 extrorse cyst. 



1. D. prolifera, SooTc. et Qrerv. Ic. Fil. {corrig.) ; Sook. Oen. 

 Fit. t.4A B ; Hooh. Fil. Exot. t. 82 ; Lowe's Ferns, 8, 

 t. 38. Dicksonia prolifera, Kaulf. Deparia Macrasi, 

 HooTe. et Grev. Ic. Fil. 1. 154. — Sandwicli Islands. , 



125. SITOLOBIITM, Besv. 



Vernation uniserial and sarmentose. Fronds bi-tripinnatifid, 

 2-6 feet high. Veims simple or pin- 

 nately forked, the exterior venule, or 

 more, soriferous. Secepiacles pimc- 

 tiform, terminal. Sori globose, re- 

 flexed. Special and accessory indusia 

 united and forming a reflexed, entire, 

 or sub-bilabiate cup. 



1. S. punctilobum, J". Sm, Ne- 

 phrodium punctUobulum, 

 Miche. Aspidium punctilo- 

 bulum, Sw. Dicksonia punc- 

 tiloba, Hoolc; Lowe's 

 Ferns, 8, t. 42. Dicksonia 

 pubescens, Schh. Fil. 1. 131. 

 Dicksonia pHosiuscula, 

 Willd. Sitblobium pilo- 

 siusculum, Besv. ; J. Sui. 

 Oen. Fil. Dennstaedtia 

 punctilobula, Moore. — 

 Korth America. 



2. S. adiantoides, /. Sm. Dick- 

 sonia adiantoides, Hwnib. ; 

 Hooh. Sp. Fil. t. 26 B. 

 Polypodium globuliferum, 

 Poir {Flwin. Fil. t. 30). 



Genus 155 —Portion of fertile Dennstaedtia adiantoides, 



irund. under side. No. a. Jfoore.— TropicalAmerica. 



