Descriptive Catalogue of the Fossil Organic Remains of Plants Contained in the Museum (Volume 13) (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1855 Excerpt: ... Genus Pecopteris. Leaf once, twice, or thrice pinnate: leaflets adhering by their base to the rachis, or occasionally distinct: midrib running quite through the leaflets; veins almost perpendicular to the midrib, simple, or once or twice dichotomous. 199. A slab of coal-shale, marked with the impression of part of a frond of Pecopteris arborescens. Brongniart, Hist. Veg. Foss. vol. i. pl. 102, 103. Locality unrecorded. Hunterian. 200. A small slab of micaceous slate-shale, with an impression of parts of two fronds of Pecopteris cyathea. Brongniart, Hist. Vg. Foss. vol. i. p. 307. pl. 101. fig. 1-4. From Wettin. Hunterian. 201. A fragment of coal-shale, showing an impression of part of a frond, pro bably of a variety of Pecopteris cyathea. Locality unrecorded. Hunterian. 202. A small fragment of clay ironstone, with an impression of a leaflet of Pe copteris (probably) cyathea. Locality unrecorded. Hunterian. 203. A slab of indurated clay-shale with the impression of part of a frond of Pecopteris cyathea; the under surface is uppermost, and traces of fructification are well displayed. Locality unrecorded. Hunterian. 204. A portion of a nodule of clay-ironstone, with the impression of part of a frond of Pecopteris Dournaisii, probably near the apex of the frond. Brongniart, Hist. Veg. Foss. vol. i. pl. 89. Locality unrecorded. Hunterian. From s"ficitf to comb, and irrtpit a fern. 205. Two slabs of indurated shale, exhibiting impressions of a large part of a frond of Pecopteris gigantea. Brongniart, Hist. Vg. Foss. vol. i. pl. 92: this species belongs to the division Cyathoides of the genus Pecopteris. From Germany. Hunterian. 206. A thick slab of indurated coal-shale, with an impression of a portion of a large frond of Pecopteris gigantea. Locality unrecorded...