. Fossil plants : for students of botany and geology . Paleobotany. Fig. 397. Traoheids from the stem of Stangeria paradoxa. (After Marsh.) Fig. 398. Pith-east of a Macrozamia stem, (f nat. size.) represented on the cast by tapered convex areas occasionally bearing the impress of an outgoing trace in the form of a narrow groove. The secondary phloem often rivals the xylem in breadth and, is not always easily distinguishable from it; it consists of sieve-tubes, parenchyma, and fibres. The secondary cambial cyHnders characteristic of Cycas, Encephalartos, Macrozamia, and Bowenia, to which refere
. Fossil plants : for students of botany and geology . Paleobotany. Fig. 397. Traoheids from the stem of Stangeria paradoxa. (After Marsh.) Fig. 398. Pith-east of a Macrozamia stem, (f nat. size.) represented on the cast by tapered convex areas occasionally bearing the impress of an outgoing trace in the form of a narrow groove. The secondary phloem often rivals the xylem in breadth and, is not always easily distinguishable from it; it consists of sieve-tubes, parenchyma, and fibres. The secondary cambial cyHnders characteristic of Cycas, Encephalartos, Macrozamia, and Bowenia, to which reference was made in the summary of anatomical features, arise in the pericycle, and a few layers of 1 Pavolini (09); Marsh (14).. 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
Size: 1157px × 2160px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublishercambr, bookyear1898
