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GENUS XLIV. STENOCHL.ENA J. SM. 



(Deriv. Gr. .Stenos, narrow ; chlcena^ cloak 

 in reference to the narrow involute margin.) 



Fronds of two forms ; the fertile fronds 

 contracted and very narrow ; the barren 

 fronds simply pinnate ; the pinnae leathery in 

 texture ; veins simple or forked, fine and close, 

 generally quite free to the margin, rarely anas- 

 tomosing ; stipes adherent to the rhizome ; 

 pinnae articulate with the rachis. 



Stenochlana palustre Bedd. 

 Rhizome slender, climbing, and covered with 

 long narrow scales. Stipe adherent to the 

 rhizome. Fronds 1-4 feet long, of two kinds, 

 pinnate ; pinnae articulated with the rachis, 

 linear lanceolate, acuminate, wedge-shaped at 

 the base, margin cartilaginous, spinulose serrate, 

 especially towards the apex ; pinnae of the 

 fertile frond much contracted. Surfaces naked, 

 shining. Texture hard, leathery. Rachis of 

 the sterile pinnae winged. (This wing has been 

 looked upon as a transverse vein anastomosing 

 in loops parallel with the costa.) From the 

 wing proceed towards the margin a large 

 number of close parallel veins which are either 

 simple or forked, free or seldom anastomosing. 



