POLYPODIACE^. 



21 



BLECHNUM. 



Gen. Char. {Cryptogamia Mikes.) Sori linear, continuous 

 (sometimes interrupted), contiguous to the midrib; indusium 

 membranous, superficial, continuous, opening inwards. 



A Greek name for a Fern, thought to mean powerless, 

 A few species may be raised in the greenhouse, in turfy peat, 

 as hastatum, from Chili ; Icevigatum, cartilagineum, and stria- 

 tum, from Australia, and Australe, from the Cape. 



LOMAEIA. 



Gen. CJiar. {Cryptogamia Filices.) Sori linear, continuous, oc- 

 cupying the surface of the linear pinnae of a particular frond ; 

 indusium marginal or sub-marginal, and involute. 



The name arises from the Greek for edge, on account of 

 the marginal position of the indusia. A genus of fine Ferns, 

 of which L. Spieard is English, and the following can be 

 cultivated in the greenhouse : — L. auriculata and Capensis, 

 natives of the Cape, nuda and Patersoni, of Van Diemen's 

 Land, lanceolata of New Zealand, and Magellanica of the 

 Falkland Islands, 



