The Geological History of PlantsK. Paul, Trench, 1888 - 290 pages |
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Page 21
... spore - cases or seeds from the Upper Ludlow ( Silurian ) formation of England , and which had been described by Sir Joseph Hooker under the name Pachytheca . In the same slabs with these I found fragments of fossil wood identical with ...
... spore - cases or seeds from the Upper Ludlow ( Silurian ) formation of England , and which had been described by Sir Joseph Hooker under the name Pachytheca . In the same slabs with these I found fragments of fossil wood identical with ...
Page 48
... spore- cases , I introduced them into the report on the Erian * Or , as they have recently been named by some botanists , " Hete- rosporous Filices , " though they are certainly not ferns in any ordinary sense of that term . flora ...
... spore- cases , I introduced them into the report on the Erian * Or , as they have recently been named by some botanists , " Hete- rosporous Filices , " though they are certainly not ferns in any ordinary sense of that term . flora ...
Page 49
... spores and spore - cases in the ac- cumulation of coal , a question to be discussed in a sub- Sphe- nophyllum an- tiquum ( Erian , New Brunswick ). THE ERIAN OR DEVONIAN FORESTS . 49.
... spores and spore - cases in the ac- cumulation of coal , a question to be discussed in a sub- Sphe- nophyllum an- tiquum ( Erian , New Brunswick ). THE ERIAN OR DEVONIAN FORESTS . 49.
Page 50
... spore - cases known to me is that at Kettle Point , Lake Huron . It is a bed of brown bituminous shale , burning with much flame , and under a lens is seen to be studded with flattened disc - like bodies , scarcely more than a hundredth ...
... spore - cases known to me is that at Kettle Point , Lake Huron . It is a bed of brown bituminous shale , burning with much flame , and under a lens is seen to be studded with flattened disc - like bodies , scarcely more than a hundredth ...
Page 54
... spores embedded in the Erie shales may be re- garded as perfectly analogous to the larger spores of the modern Salvinia ... Spore - cases of Salvinia natans . DX , Same , magnified . E , Shale with sporangites , vertical section , highly ...
... spores embedded in the Erie shales may be re- garded as perfectly analogous to the larger spores of the modern Salvinia ... Spore - cases of Salvinia natans . DX , Same , magnified . E , Shale with sporangites , vertical section , highly ...
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Common terms and phrases
Acrogens Algæ allied America appear Archæopteris arctic bark beds belong bituminous branches Calamites Canada Carboniferous Caulopteris cellular character climate coal coal-formation Cordaites Crown 8vo cycads Cyclopteris Dadoxylon Dawson Demy 8vo deposits described Devonian dicotyledons English Eocene Europe Fcap ferns Fifth Edition flora formation forms fossil plants Fourth Edition fronds Frontispiece Gaspé genera genus Geological Society graphite Greenland Heer hemisphere Illustrations India Journal land land-plants Laramie Laurentian leaf-bases leaf-scars leaves Lepidodendron Lepidophloios Lesquereux limestone Lower Carboniferous Lycopods macrospores Maps medullary rays Mesozoic Middle Miocene modern Nova Scotia occur Paleozoic period Permian pinnules Plates Post 8vo Prof Psilophyton referred Rhizocarps rocks Royal 8vo sandstones scalariform scars Second Edition Sequoia shales Sigillaria Silurian similar Small crown 8vo species specimens Sporangites spore-cases spores sporocarps stems Sternbergia structure Tertiary thick Third Edition tion tissue Translated tree-ferns trees trunks types Upper Cretaceous vascular vegetable vols wood woody
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