. The testimony of the rocks; . PECOPTERIS OBTUSIFOLIA. much of its peculiar character, all the world over, to theflora of the Oolitic ages. The compound ferns of the formation are numerous,and at least proportionally a considerable part of themseem identical in species with those of the Oolite of Eng-land. (See Fig. 143.) Among these there occur Pecopte-ris Whitbiensis, JPecopteris obtusifolia, Pecopteris insig-nis,—all well marked English species; with several has, besides, its apparent ferns, that seem to be new — 490 ON THE LESS KNOWN (Fig. 144)—tliat are at least not figured in
. The testimony of the rocks; . PECOPTERIS OBTUSIFOLIA. much of its peculiar character, all the world over, to theflora of the Oolitic ages. The compound ferns of the formation are numerous,and at least proportionally a considerable part of themseem identical in species with those of the Oolite of Eng-land. (See Fig. 143.) Among these there occur Pecopte-ris Whitbiensis, JPecopteris obtusifolia, Pecopteris insig-nis,—all well marked English species; with several has, besides, its apparent ferns, that seem to be new — 490 ON THE LESS KNOWN (Fig. 144)—tliat are at least not figured in any of the fossilfloras to which I have access, — (Fig. 145), — such as a welldefined Pachypteris, with leaflets broader and rounder than Fig. Fig. 145.
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