TAB. IV. 



Fig. 34. BLECHNUM. a, fertile pinna, with sori remaining on one 

 side, cleared away from the receptacle on the other. 



Fig. 35. SADLERIA. a, fertile pinnule ; b, portion of the same 

 enlarged. 



Fig. 36. WOODWARDIA. a, fertile pinnule ; b, portion of pinnule 

 of Lorinseria. 



Fig. 37. DOODIA. a, b, portions of fertile pinnae. 



Fig. 38. ASPLENIUM. a, Euaspleniuui ; b, c, Darea ; e, Athy- 

 rium ; d, f, Diplaziurn ; g, Anisogonium ; h, Hemidictyum : 

 all, portions of the frond to show the fructification and venation. 



Fig. 39. ALLANTODIA. a, portion of fertile pinna, with outer 

 veins ; 6, inner half of the same enlarged. 



Fig. 40. ACTINIOPTERIS. a, entire frond ; b, fertile segment ; c, the 

 same, with the involucres rolled back. 



Fig. 41. SCOLOPENDRIUM. a, Euscolopendrium ; b, Anti- 

 gramme ; c, Schaffneria ; d, Camptosorus ; portions of the frond, 

 to show fructification and venation. 



Fig. 42. DIDYMOCHL^ENA. , fertile pinnule ; b, single sorus, 

 enlarged. 



