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Updated: May 23, 2025
I see that river, with its trees and shrubs, all unknown now except in museums the vegetation of the Coal Period the lepidodendron, the lepidostrobus, the pecopteris, the neuropteris, the lonchopteris, the odontopteris, the sphenopteris, the cyclopteris, the sigellaria veniformis, the sphenophyllium, the calamites " Melick started to his feet. "There, there!" he cried, "hold hard, doctor.
At the distance of 30 miles from the plumbago, there occurs, on the borders of Rhode Island, an impure anthracite in slates containing impressions of coal-plants of the genera Pecopteris, Neuropteris, Calamites, etc.
In one species known as the neuropteris, the nerves of the leaves are as clear and as apparent as in a newly-grown fern, the name being derived from two Greek words meaning "nerve-fern." It is interesting to consider the history of such a leaf, throughout the ages that have elapsed since it was part of a living fern.
Walchia piniformis, Schloth. Permian, Saxony. Branch. b. Twig of the same. c. About 18 or 20 species of plants are known in the Permian rocks of England. None of them pass down into the Carboniferous series, but several genera, such as Alethopteris, Neuropteris, Walchia, and Ullmania, are common to the two groups.
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