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Subfossil oospores of Characeae from two sites in the Ingleborough Region of West Yorkshire

Published online by Cambridge University Press:  26 April 2010

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Abstract

Subfossil oospores of Characeae from two Late-glacial sites, Sniddle Moss and Thieves' Moss, in the Ingleborough Region of West Yorkshire, were examined under light and scanning electron microscopes. An attempt was made to identify tentatively the characean species based principally on features of the oospore wall. Doubt attaches to one of the two species of Nitella recognized (N. flexilis, N. opaca?), one Chara species was attributed to the C. vulgaris complex, and other oospores belonging to the latter genus were placed in groupings based on oospore characters.

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Articles
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Copyright © Trustees of the Royal Botanic Garden Edinburgh 1996

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References

REFERENCES

Caceres, E. J. (1975). Novedades Carologicas Argentinas I. Una Nueva Especie de Nitella y tres Adiciones al Genero Para La Flora Argentina. Kurtziana 8: 105125.Google Scholar
Frame, P. (1977). Fine structural studies of oospore ornamentation and bulbil development in Charophytes. Ph.D. Thesis, University of Toronto, 182pp.Google Scholar
Gosden, M. S. (1965). An investigation into the origin and nature of some organic deposits of the Ingleborough Region. Ph.D. Thesis, University of Leeds, 93pp.Google Scholar
Groves, J. & Bullock-Webster, G. R. (1920). The British Charophyta Volume I Nitelleae. London: Ray Society.Google Scholar
Groves, J. & Bullock-Webster, G. R. (1924). The British Charophyta Volume II Chareae. London: Ray Society.Google Scholar
Haas, J. N. (1994). First identification key for charophyte oospores from central Europe. Eur. J. Phycol. 29: 227235.CrossRefGoogle Scholar
Horn Af Rantzien, H. (1956). Morphological terminology relating to female charophyte gametangia and fructifications. Bot. Not. 109: 212259.Google Scholar
Horn Af Rantzien, H. (1959). Recent charophyta fructifications and their relations to fossil charophyte gyrogonites. Ark. Bot. 4(7): 165332.Google Scholar
John, D. M. & Moore, J. A. (1987). An SEM study of the oospore of some Nitella species (Charales, Chlorophyta) with descriptions of wall ornamentation and an assessment of its taxonomic importance. Phycologia 26: 334355.CrossRefGoogle Scholar
John, D. M., Moore, J. A. & Green, D. R. (1990). Preliminary observations on the structure and ornamentation of the oosporangial wall in Cliara (Charales, Chlorophyta). Brit. Phycol. J. 25: 124.CrossRefGoogle Scholar
Krause, W. (1986). Zur Bestimmungsmöglichkeit subfossiler Characeen-Oosporen an Beispielen aus Schweizer Seen. Vierteljahrsschr. Naturf Ges. Zürich 131(4): 295313.Google Scholar
Leitch, A. R. (1986). Studies on living and fossil charophyte oosporangia. Ph.D. Thesis, University of Bristol, 182pp., 36 pls.Google Scholar
Leitch, A. R., John, D. M. & Moore, J. A. (1990). The oosporangium of the Characeae (Chlorophyta, Charales). In: Round, F. E. & Chapman, D. J., Progress in Phycological Research 7: 213268. Bristol: Biopress Ltd.Google Scholar
Moore, J. A. (1986). Charophytes of Great Britain and Ireland. B.S.B.I. Handbook No. 5. London: Botanical Society of the British Isles.Google Scholar
Oybak, E. (1993). Palaeoecological studies of selected mires in the Craven District of West Yorkshire with special reference to the Late Devensian Period and the Ulmus Decline. Ph.D. Thesis. University of Leeds, 185pp.Google Scholar
Swales, S. (1987). The vegetational and archaeological history of the Ingleborough Massif, North Yorkshire. Ph.D. Thesis, University of Leeds, 217pp.Google Scholar
Wood, R. D. & Imahori, K. (1965). A Revision of the Characeae 1: Monograph of the Characeae. Weinheim: Verlag Von J. Cramer.Google Scholar