Page:Parsons How to Know the Ferns 7th ed.djvu/168

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GROUP V

FERTILE AND STERILE FRONDS LEAF-LIKE AND SIMILAR;
SPORANGIA IN LINEAR OR OBLONG FRUIT-DOTS

Lower pinnæ

lighting on the rocks in order to secure some insect, now tilting backward and forward with the comical motion peculiar to them, gliding swiftly along the pebbly shore till their brown and gray and white coats are lost in the brown and gray and white of shore, rock, and water.

Upper pinnæ

In such a retreat as this ravine the Maidenhair Spleenwort seems peculiarly at home.Its tufted fronds have a fresh greenness that is a delight to the eye as they spring from little pockets or crannies too shallow, we would suppose, for the necessary moisture and nourishment. Its near companions are the Walking Fern, whose tapering, leaf-like, blue-green fronds leap along the shelving ledge above, and the Bulblet Bladder Fern, which seems to gush from every crevice of the cliff.


30. GREEN SPLEENWORT

Asplenium viride

Northern New England, west and northward, on shaded rocks. A few inches to nearly a foot long, with tufted stalks, brownish below, green above.

Fronds.—Linear-lanceolate, once-pinnate, pale green; pinnæ ovate, toothed, midvein indistinct and forking; fruit-dots oblong; indusium straight or curved.

The Green Spleenwort in general appearance resembles the Maidenhair Spleenwort. Perhaps

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