261 



FEENS : BRITISH AND FOREIGN. 



Fertile frond ivholly contracted. (Osmundastrum.) 



1. O. cinnamomea, Linn.; Schk. Fil. 

 t. 146 ; Hook. Gard. Ferns, t. 45 ; 

 Lowe's Ferns, 8, 1. 1. — North and 

 South America, East Indies. 



** Lateral. pinnce of fertile frond con- 

 tracted. (Plenatsium.) 

 2. O. Claytoniana, Linn. ; Lowe's Ferns, 

 8, t. 2. O. interrupta, Michx.; 

 Schk.Fil.t.l4£. — NorthAmerica. 



*** Terminal pinnae of 



fertile frond contracted. 



(Euosmnnda.) 



3. O. regalis, Linn. {Plum. 

 Fil.t.B,fA);8chk. 

 Fil. 1. 145 ; Hook. 

 Gen. Fil. t. 46 A ; 

 Eng. Bot. t. 209 ; 

 Lindl. and Moore's 

 Brit. Ferns, t. 50 ; 

 Hook. Brit. Ferns, 

 t. 45 ; Sowerby's 

 Ferns, t. 44 ; — var. 

 cristatus, Moore, 

 in Gard. Ghron. 

 (1863).— North 

 'Jfemperate Zone, 

 Brazil, 



Genus us.— Pinnule of barren frond, and 

 fertile spike, natural size. No. 3. 



4. O. speetabilis, Willd. O. regalis, var. ft, Linn. — North 



America. 



5. O. gracilis, Link. — North America. 



149. TODEA, Willd. 



Vernation asciculate, erect, sub-arboreous. Fionds bipinna- 

 tifid, 2-6 feet high; pinnae coriaceous or membranaceous; 

 fertile frond sub-contracted. Veins forked; venules free. 



