. Fossil plants : for students of botany and geology . Paleobotany. Fio. 664. C, Ginlcgopsis Czdcanowskii. A, B, Nephropsis integerrima. (From the originals of Schmalhausen's figures, supplied by Prof. Zalessky; nat. size.) but with the addition of a question-mark. The Permian leaves differ from those of Ginkgo in the absence of marginal veins—though this is of secondary importance—in the absence of a true petiole, in the form of the lamina and, from the majority of recent Ginkgo leaves, in the entire margin. The supposed leaves may be leaflets of a compound frond or possibly bracts from some
. Fossil plants : for students of botany and geology . Paleobotany. Fio. 664. C, Ginlcgopsis Czdcanowskii. A, B, Nephropsis integerrima. (From the originals of Schmalhausen's figures, supplied by Prof. Zalessky; nat. size.) but with the addition of a question-mark. The Permian leaves differ from those of Ginkgo in the absence of marginal veins—though this is of secondary importance—in the absence of a true petiole, in the form of the lamina and, from the majority of recent Ginkgo leaves, in the entire margin. The supposed leaves may be leaflets of a compound frond or possibly bracts from some fertile shoot. ^ Schmalhausen (79) A. p. 85, PI. xvi. figa. 12- 2 Zeiller (96) A. p. 475. " Renault (88) p. 232, fig- 47 c. ^ Zeiller (06) B. PI. XLvm. fig. 3. 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 Seward, A. C. (Albert Charles), 1863-1941. Cambridge : University Press
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishercambr, bookyear1898
