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CHAPTER XII. 
Lasteea. —Masses of seed kidney-shaped (that is, 
nearly circular, with an indentation on one side) ; 
indusium attached at the indentation. 
Lasteea Thelypteeis. The Marsh Buckler Fern . 
Erond lance-shaped, broad at the base, pinnate or 
once divided; pinnae deeply cleft. In fertile fronds 
the edges of the lobes turn back over the seed, 
which is placed along the margin, giving each lobe 
a pointed and contracted appearance. The root is 
creeping, and the stems smooth and scaleless. The 
fronds are delicate in texture, and pale green. 
This fern is recorded as growing in Devon, hut 
we have never as yet been fortunate enough to find 
it; as its name indicates, it is the inhabitant of 
marshes and moist meadow-lands. 
Lasteea Oeeopteeis. The Sweet-scented Mountain 
Fern. (Plate YIII.) 
Eronds lance-shaped; pinnules dwindling at the 
