. Fossil plants : for students of botany and geology . Paleobotany. xxxvi] CYCADEOIDEA 411 out, the abundance of lateral fertile shoots among the leaf-bases shows it to be essentially similar to Cycadeoidea Gibsoniana. The type-specimen in the Dresden Museum is a splendid example of a fossil cycadean stem; it is probably of Lower Cretaceous age, but was found in Gahcia as an isolated specimen. It consists of a portion of a cylindrical trunk similar in habit to C. gigantea, •5 met. high and about the same in diameter. The pith, according. Fid. 534. Cycadeoidea Reichenbachiana. Cup-like cavity o
. Fossil plants : for students of botany and geology . Paleobotany. xxxvi] CYCADEOIDEA 411 out, the abundance of lateral fertile shoots among the leaf-bases shows it to be essentially similar to Cycadeoidea Gibsoniana. The type-specimen in the Dresden Museum is a splendid example of a fossil cycadean stem; it is probably of Lower Cretaceous age, but was found in Gahcia as an isolated specimen. It consists of a portion of a cylindrical trunk similar in habit to C. gigantea, •5 met. high and about the same in diameter. The pith, according. Fid. 534. Cycadeoidea Reichenbachiana. Cup-like cavity on the stem allowing the axis and surrounding bracts of a lateral fertile shoot. (After Schuster, from a block kindly supplied by Prof. Rothpletz.) to Schuster^, is 13 cm. in diameter and the xylem 8 cm. broad. There are many flowering shoots some of which are represented by cup-like depressions, the base of the cup consisting of the cylindrical axis and the sides bearing the impress of the encircling bracts (fig. 534). Goeppert compared these lateral shoots with the buds frequently produced on the stems of Cycas. It is interesting to find that some of the cups correspond very closely 1 Schuster (11). An excellent photograph of the stem is reproduced in this 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
