. Fossil plants : for students of botany and geology . Paleobotany. Fio. 298. A. Caulopteris peltigera. B. Mepaphytoii insigne. (After Grand'Eury.) Much reduced. scar, the ends of the U being incurved, or by a closed oval ring with a wide-open and inverted V near its upper end. The surface between the leaf-scars bears the impression of adven- titious roots. Caulopteris is represented, in the Upper Coal- Measures of England, by C. anglica^ Kidst. The species C. peltigera (fig. 298, A), originally described by Brongniart as Sigillaria, illustrates the closed form of leaf-trace and, as Zeiller su
. Fossil plants : for students of botany and geology . Paleobotany. Fio. 298. A. Caulopteris peltigera. B. Mepaphytoii insigne. (After Grand'Eury.) Much reduced. scar, the ends of the U being incurved, or by a closed oval ring with a wide-open and inverted V near its upper end. The surface between the leaf-scars bears the impression of adven- titious roots. Caulopteris is represented, in the Upper Coal- Measures of England, by C. anglica^ Kidst. The species C. peltigera (fig. 298, A), originally described by Brongniart as Sigillaria, illustrates the closed form of leaf-trace and, as Zeiller suggests, it is the cast of a Psaronius stem which possessed a vascular system on the same plan as that of P. infarctus. C. Saportae'' illustrates the open U-shaped type of petiole stele. 1 Lindley and Hutton (3,S) A. PI. xlii. 3 Eenault and Zeiller (88) A. PI. xxxv. fig. 6. 2 Kidston (88) PL 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
