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GROUP I; GENUS XV; SPECIES I. 
TRICHOMANES RADICANS. (Bristle , or Killarney Fern.) 
Plate XVIII. 
Fronds. Triangular or lanceolate, hi- or tri-pinnate. 
Texture membranous and semi-transparent. 
Pinnae lanceolate, alternate. Pinnules fan¬ 
shaped, connected together by a membranous 
wing, and deeply cleft into notched lobes. 
Rachis furnished with a membranous wing 
extending below the leafy portion of the frond. 
Stipes rather long. 
Growth. Lax and pendulous. Fronds rising from a 
creeping, black, scaly rhizoma. 
* 
Height. From six to twelve inches. 
Colour. Dull green. 
Habitats. Dripping rocks in the south-west of Ireland. 
