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Genus XLIV.—StTeEnocHLana J. Sm. 
(Deriv. Gr. Stenos, narrow ; chlena, 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 pinne leathery in 
texture; veins simple or forked, fine and close, 
_ generally quite free to the margin, rarely anas- 
tomosing ; stipes adherent to the rhizome ;- 
pinnz articulate with the rachis. 
Stenochlena 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; pinnz articulated with the rachis, 
linear lanceolate, acuminate, wedge-shaped at ' 
the base, margin cartilaginous, spinulose serrate, 
especially towards the apex; pinnz of the 
fertile frond much contracted. Surfaces naked, 
shining. Texture hard, leathery. Rachis of 
the sterile pinnze 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. 
