( *3 ) 
green. Stipes shorter than the leafy portion 
of the frond, and dark-coloured at base. 
Growth. Nearly erect, but less stiff looking than A. 
Trichomanes. 
Height. From three to six inches. 
Colour. Bright, light green. 
Habitats. Moist, rocky places at a considerable 
elevation. Rather rare. 
GROUP I; GENUS IV. 
ATHYRIUM. 
Sori. Reniform. Indusium attached to the side of 
the venule; its free margin fringed with 
hair-like segments. 
Venules. Free or anastomosing. 
GROUP I; GENUS IV; SPECIES I. 
ATHYRIUM FILIX-FCEMINA. (Lady Fern.) 
Plate VI. 
Fronds. Lanceolate, bi-pinnate. Pinnae opposite or 
alternate, triangular, drawn out to a point. 
E 
