7. CLIMBING FERN
Lygodium palmatum
Climbing, with lobed, palmate pinnæ and terminal fruit-clusters. Moist thickets and open woods. Rare. P. [75].
8. ADDER'S TONGUE
Ophioglossum vulgatum
Small. Sterile portion an ovate leaf. Fertile portion a slender spike. In moist meadows. P. [77].
9. RATTLESNAKE FERN
Botrychium Virginianum
Rather large. Sterile portion a thin, spreading, ternately divided leaf with three primary divisions; 1-2 pinnate. Fertile portion a branching fruit-cluster. In rich woods. P. [80].