. Fossil plants : for students of botany and geology . Paleobotany. 524 PTEBIDOSPERMS, ETC. [CH. is shown in fig. 350 on a slightly reduced scale, was originally figured by Schimper fi:om an unusually good example in the Strassburg Museum. Schimper's drawing hardly does justice to the original specimen. A frond bearing rather narrower pinnules, alternately placed on the rachis, which Fritsch has described as Cardiopteris Hochstetterii va,T. franconica from the Culm of Thuringia, bears a close resemblance to Neuropteridium validum but differs in the entire margin of the pinnules. An Upper Carbo


. Fossil plants : for students of botany and geology . Paleobotany. 524 PTEBIDOSPERMS, ETC. [CH. is shown in fig. 350 on a slightly reduced scale, was originally figured by Schimper fi:om an unusually good example in the Strassburg Museum. Schimper's drawing hardly does justice to the original specimen. A frond bearing rather narrower pinnules, alternately placed on the rachis, which Fritsch has described as Cardiopteris Hochstetterii va,T. franconica from the Culm of Thuringia, bears a close resemblance to Neuropteridium validum but differs in the entire margin of the pinnules. An Upper Carboniferous. Fio. 350. Cardiopteris frondosa (Goepp.). (J nat. size. After Sohimper.) species from Russia described by Grigoriewi as Neuropteris, cf. cordata var. densineura, represents another form of similar habit. Schuster' has recently proposed a new generic name Ulvopteris for a fragment of a pinna from the Coal-Measures of Dudweiler in Germany bearing large pinnules, which he compares with those of Cardiopteris and species of Rhacopteris. The specimen appears to be indistinguishable from some of ' Grigoriew (98) PI. iv. - Schuster (08) p. 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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