. Fossil plants : for students of botany and geology . Paleobotany. 146 MEDTJLLOSBAE [CH. RHEXOXYLON. Bancroft. Rhexoxylon africanum Bancroft. The genus Rhexoxylon was instituted for a new type of stem represented by a single incomplete specimen from the Karroo series of South Africa: its precise geological horizon is not known but it may be referred provisionally. Fig. 437. Rhexoxylon africanum. Transverse section of stem showing peripheral steles and central (c) stele. (After Bancroft; x 2.) to the lower or Palaeozoic portion of the series. Though our knowledge of the morphological features
. Fossil plants : for students of botany and geology . Paleobotany. 146 MEDTJLLOSBAE [CH. RHEXOXYLON. Bancroft. Rhexoxylon africanum Bancroft. The genus Rhexoxylon was instituted for a new type of stem represented by a single incomplete specimen from the Karroo series of South Africa: its precise geological horizon is not known but it may be referred provisionally. Fig. 437. Rhexoxylon africanum. Transverse section of stem showing peripheral steles and central (c) stele. (After Bancroft; x 2.) to the lower or Palaeozoic portion of the series. Though our knowledge of the morphological features of the type-species is far from complete owing in part to the method of preservation of the specimen and in part to the destruction of the outer portion. 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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