Part 12

Aspidium acrostichoides

Rather large, smooth and glossy, once-pinnate. Fertile fronds contracted at the summit where the fruit appears. In rocky woods. P. 96.

18. NARROW-LEAVED SPLEENWORT

Asplenium angustifolium

Tall and delicate, once-pinnate. Fertile fronds taller and narrower than the sterile. In moist woods in late summer. P. 98.

19. NET-VEINED CHAIN FERN

Woodwardia angustifolia

Large, fronds deeply pinnatifid, the fertile taller and more contracted than the sterile. In wet woods near the coast. P. 102.

GROUP IV

FERTILE AND STERILE FRONDS LEAF-LIKE AND SIMILAR; SPORANGIA ON OR BENEATH A REFLEXED PORTION OF THE MARGIN

20. BRAKE

Pteris aquilina

Large and coarse, frond 3-branched, spreading, each branch 2-pinnate, sporangia in a continuous line beneath the reflexed margin of the frond. In dry, somewhat open places. P. 105.

21. MAIDENHAIR

Adiantum pedatum

Graceful and delicate, frond forked at the summit of the stem, 2-pinnate, the pinnæ springing from the upper sides of the branches, pinnules one-sided, their upper margins lobed, bearing on their undersides the short fruit-dots. In rich woods. P. 108.

22. HAIRY LIP FERN

Cheilanthes vestita

Rather small, fronds 2-pinnate, hairy, fruit-dots "covered by the infolded ends of the rounded or oblong lobes." On rocks. P. 112.

23. HAY-SCENTED FERN

Dicksonia pilosiuscula

Rather large, pale, delicate and sweet-scented, fronds usually 2-pinnate, fruit-dots small, each on a recurved toothlet of the pinnule, borne on an elevated, globular receptacle. In moist thickets and in upland pastures. P. 114.

GROUP V

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

24. LADY FERN

Asplenium Filix-fœmina

Rather large, fronds 2-pinnate, fruit-dots curved, often horseshoe shaped, finally confluent. In moist woods and along roadsides. P. 120.

25. SILVERY SPLEENWORT