Page 3625 of 3657 Results 36241 - 36250 of 36569
Id/Author/Year/TitleOrder by:  Year  Id  Author  Title
329
Winchester V. (1988): An assesment of lichenometry as a method for dating recent stone movements in two stone circles in Cumbria and Oxfordshire - Botanical Journal of the Linnean Society, 96: 57-68

Lichenometry uses the size/age relationship of lichens to date stone surfaces. A study of neolithic stone circles at Rollright in Oxfordshire and Castlerigg in Cumbria showed that stone movements in the recent past may he deduced from the varying sizes of lichen populations on different surfaces and approximate dates may be suggested for periods of change. Thalli of Aspicilia calcarea dating to around 1366 and of Rhizocarpon geographicum to 1523 are reported. Problems in past work have mainly concerned … EndNote Read more... 

328
Wetmore C.M. (1989): Lichens and Air Quality in Cuyahoga Valley National Recreation Area, Ohio. - Bryologist, 92(3): 73-281

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327
Wetmore C.M. (1981): Lichens and Air Quality in Big Bend National Park, Texas. - Bryologist, 84(3): 426-433

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326
Wetmore C. M. (1960): The lichen genus Nephroma in North and Middle America. - Mich. Mus. State Univ, 1(11): 373-452

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325
Wetherbee R. (1969): Population studies in the chemical species of the Cladonia chlorophaea group. - The Michigan Botanist, 8: 170-174

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324
Wade A.E. (1965): The genus Caloplaca Th.Fr. in the British Isles. - Lichenologist, 3: 1-28

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323
Vitikainen O. (1994): Taxonomic revision of Peltigera (lichenized Ascomycotina) in Europe. - Acta Bot. Fennica, 152: 1-96

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322
Vítek J. (1975): Kryogenní tvary v Orlických horách. - Sborník Československé společnosti zeměp, 80(3): 184-192

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321
Vězda A. & Weber W.A. (1976): A new species of Polychidium (Lichenes: Peltigeraceae) from New Guinea - Mycotaxon, 3(3): 355-357

Polychidium stipitatum sp. nov. EndNote Read more... 

320
Vězda A. & Vivant J. (1975): Absconditella pauxilla Vězda et Vivant sp. n. un nouveau lichen des Pyrénés-Atlantiques. - Folia geobot. phytotax. bohemoslavica, 10: 205-208

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Page 3625 of 3657 Results 36241 - 36250 of 36569