. The Canadian record of science. Natural history. 160 Geology and Fossil Flora of in a memoir published about the same time with my Report, *c a species which he names Walchia linearifolia, and which is vfery near to W. gracilis, and especially to the variety of that species figured by Mr. Eain. Knorria-like stems and specimens of Sternbergia, obtained by Mr. Eain in the same beds, may all belong to this species. Large Noeggerathia-like leaves, such as those referred to by Mr. Bain, are not infrequent in the Permiao elsewhere, and have been variously referred to ferns, to palms, and to
. The Canadian record of science. Natural history. 160 Geology and Fossil Flora of in a memoir published about the same time with my Report, *c a species which he names Walchia linearifolia, and which is vfery near to W. gracilis, and especially to the variety of that species figured by Mr. Eain. Knorria-like stems and specimens of Sternbergia, obtained by Mr. Eain in the same beds, may all belong to this species. Large Noeggerathia-like leaves, such as those referred to by Mr. Bain, are not infrequent in the Permiao elsewhere, and have been variously referred to ferns, to palms, and to taxine trees of the type of Salisburia. I have not seen Mr- Bain's specimens of these Fig. 1. Branch of Walchia? Trias, Prince Edward Island. Fron* a drawing by Mr. Bain. The few plants collected by Mr. Bain in the Upper Trias, or Trias proper, are especially interesting in consequence of the paucity of well-preserved fossils in this formation. He finds m these beds a Calamites with very fine ribs of the type of C. arenaceus, and which may be an internal cast of that Triassic species, which, when perfect, is really an Equisetum rather than a Calamite ; also certain Knorria-like branches different from Tylodendron but probably branches of coniferous trees (Fig. 1), and a species of Walchia apparently distinct from that of the lower beds. It has very stout and straight branches, marked with interrupted furrows. Its branchlets are long, slender and crowded, and at right angles to the branch. The leaves are closely appressed, triangular and scale-like. Detached branchlets have thus the aspect of the Mesozoic genus Pachyphylliim, but the * I may remark here that I have obtained from the Permo-carbon- iferous of Cape John, on the Nova Scotia coast, a leafy branch with long parallel-sided obtuse leaves, and which may indicate a species of Ulmannia or Voltzia, but is not sufficiently perfect for precise- Please note that these images are extracted from scanned p
Size: 2568px × 973px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdec, booksubjectnaturalhistory, bookyear1884
