. The geological history of plants. Paleobotany; 1888. THE ERIAN OB DEVONIAN FORESTS. 81 and their piths larger than in the true pines, and some of the larger-leaved species must have had thick, stiff branches. They are regarded as constituting a separate family, intermediate between pines and cycads, and, be-. Fio. 30.—Cordaites BobJm (Brian, New Brunswick), a, Group of young leaves, i, Point of leaf, c. Base of leaf, d, Venation, magnified. ginning in the Middle Devonian, they terminate in the Permian, vrhere, however, some of the most gigantic spe- cies occur. In so far as the form and stru
. The geological history of plants. Paleobotany; 1888. THE ERIAN OB DEVONIAN FORESTS. 81 and their piths larger than in the true pines, and some of the larger-leaved species must have had thick, stiff branches. They are regarded as constituting a separate family, intermediate between pines and cycads, and, be-. Fio. 30.—Cordaites BobJm (Brian, New Brunswick), a, Group of young leaves, i, Point of leaf, c. Base of leaf, d, Venation, magnified. ginning in the Middle Devonian, they terminate in the Permian, vrhere, however, some of the most gigantic spe- cies occur. In so far as the form and structure of the leaves, stems, and fruit are concerned, there is marvel- lously little difference between the species found in the 9. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Dawson, John William, Sir, 1820-1899. New York, D. Appleton and Company
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