236 



TERNS : BRITISH: AND FOREIGN. 



l-2j feet long. Veins pinnate; venules free. Receptacles 

 punctiform, terminal. Sori exserted. Special and accessory 

 indusia conniving, and forming a calyciform, pedicellate, vertical 

 extrorse cyst. 



1. D. prolifera, Hook, et Grev. Ic. Fil. (corrig.) ; Hook. Gen. 

 Fil. t.U B; Hook. Fil. Fxot. t. 82; Lowe's Ferns, 8, 

 t. 38. Dicksonia prolifera, Kaulf. Deparia Macra^i, 

 Hook, et Grev. Ic. Fil. 1. 154. — Sandwich Islands. 



125. SITOLOBITTM, Desv. 



Vernation nniserial and sarmentose. Fronds bi-tripinnatifid, 

 2-6 feet high. Veins simple or pin- 

 nately forked, the exterior venule, or 

 more, soriferous. Receptacles punc- 

 tiform, terminal. Sori globose, re- 

 llexed. Special and accessory indusia 

 united and forming a reflexed, entire, 

 or sub-bilabiate cup. 



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

 phrodium punctilobulum, 

 Miclix. Aspidium punctilo- 

 bulum, Sw. Dicksoniapunc- 

 tiloba, Hook.; Lowe's 

 Ferns, 8, t. 42. Dicksonia 

 pubeseens.ScWi;. Fil. 1. 131. 

 Dicksonia pilosiuscula, 

 Willd. Sitolobium pilo- 

 siusculum, Desv. ; J. Sm. 

 Gen. Fil. Dennstasdtia 

 punctilobula, Moore. — 

 North America. 



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

 sonia adiantoides, Humb. ; 

 Hook. Sp. Fil. t 26 B. 

 Polypodium globuliferum, 

 Poir (Plum. Fil. t. 30). 

 Dennstaedtia adiantoides, 

 Moore. — Tropical America. 



Genus 125 —Portion of fertile 

 lrond, under side. No. 3. 



