. Fossil plants : for students of botany and geology . Paleobotany. 114 MEDULLOSEAE [OH. knowledge of the morphology of Medullosan sporophylls. Speci- mens from the ironstone balls (Coal Measures) of Coseley near Dudley showed seeds attached to portions of pinnae bearing pinnules of Neuropteris heterofhylla. The seeds are approximately 3 cm. long and from 1-10 to 1-40 cm. broad; oblong and gradually. Fig. 422. Neuropterocarpus Kidstoni (Arber). (After Kidston; x 3.) tapering from the middle to a slightly curved and obtuse apical snout (fig. 422). The outer surface shows numerous longitudinal r
. Fossil plants : for students of botany and geology . Paleobotany. 114 MEDULLOSEAE [OH. knowledge of the morphology of Medullosan sporophylls. Speci- mens from the ironstone balls (Coal Measures) of Coseley near Dudley showed seeds attached to portions of pinnae bearing pinnules of Neuropteris heterofhylla. The seeds are approximately 3 cm. long and from 1-10 to 1-40 cm. broad; oblong and gradually. Fig. 422. Neuropterocarpus Kidstoni (Arber). (After Kidston; x 3.) tapering from the middle to a slightly curved and obtuse apical snout (fig. 422). The outer surface shows numerous longitudinal ribs which no doubt represent hypodermal fibres. The preservation of the seeds, which appear to be circular in section, is not such as to render possible a description of structural features. In their asymmetrical form the seeds agree with the genus Platyspermum as recently defined by Arber, but Kidston's specimens are in all probabihty radiospermic. Kidston compares the Neuropteris seeds. 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
