126 W. WALTER WATTS. 



while the sori are consistently juxta-costai throughout. 

 The scales at the base of the stipes, and on the rhizome, 

 are shorter and wider than the normal scales of B. capense, 

 but this, perhaps, is not a character of large importance 

 in a fern that exhibits such strange variability. Mr. 

 Gregson's fern, however, being so markedly divergent from 

 the typical B. capense, and representing, as it does, an 

 extreme eublechnoid development, appears to me to demand 

 a position as a distinct variety, which I take the liberty of 

 dedicating to its discoverer as 



Blechnum capense, (L.) Schlecht, var. Gregsoni, var. nov. 



Frondes fertiles frondibus sterilibus simillimse, vel cum 

 illis uniform es; fructiflcatio prope vel omnino eublechnoidea; 

 basis stipitis paleis perlatis et brevibus praedita. 



