. On the genus Lepidophloios [microform] : as illustrated by specimens from the coal formation of Nova Scotia and New Brunswick. Paleobotany; Paleobotany; Paléobotanique; Paléobotanique. I 60 ROYAL SOCIETY OF^CANADA tened frograont of a stem or branch without the leaves, may thus ho placed either with the scars on the upper or lower angle of the leaf-base, and they have been figured by authors in bothjpositions. The former is the position when young, the latter when old. In the former condition the plant may be referred to Lepidodendron, or to Lomatophloios of Corda. In the latter it is the ad
. On the genus Lepidophloios [microform] : as illustrated by specimens from the coal formation of Nova Scotia and New Brunswick. Paleobotany; Paleobotany; Paléobotanique; Paléobotanique. I 60 ROYAL SOCIETY OF^CANADA tened frograont of a stem or branch without the leaves, may thus ho placed either with the scars on the upper or lower angle of the leaf-base, and they have been figured by authors in bothjpositions. The former is the position when young, the latter when old. In the former condition the plant may be referred to Lepidodendron, or to Lomatophloios of Corda. In the latter it is the adult cciiaition of Lepidophloios. This will appear more clearly in describing the species in detail. (See Plate IV.). Fig. a.—Young and old lbak-basej of Lbpidophloios enlarokd. (2) Internal Structure. Only one specimen of the species L. Acadianus has afforded to me fairly well preserved internal structure. It was figured and described in my paper of 1865, and some additional preparations have since been made, and have been micro-photographed through the kindness of Prof Penhallow, of McGill University. (Plate VI.) The specimen is a portion about two feet in length, apparently of a large branch, with two rows of cone-scars, and is slightly flattened, its longest diameter being about 4^ inches. It is mineralised with clay- ironstone, calcite and pyrite, and was obtained from the workings of the Albion Colliery in Pictou, Nova Scotia. The woody axis is scarcely an inch in diameter, and only its outer portion has the structure preserved, while outside of this a large portion of the stem, probably occupied by perishable parenchyma, has disappeared. External to the last is a ring of fine-grained quadrangular and imperfectly radiating tissue, about a quarter of an inch in thickness, and probably corresponding to what has. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these i
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpaleobo, bookyear1898
