Katalog - Lichenological literature

3927

Maass W.S.G. (1975): Lichen substances VII. Identification of orsellinate derivatives from Lobaria linita, Bryologist, 78: 178-182

Tenuiorin, methyl gyrophorate (pseudocyphellarin) and methyl evernate were isolated from Lobaria linita. In addition, evidence (two-directional thin layer chromatography) was obtained for the presence of methyl lecanorate and methyl orsellinate, as well as of their respective parent compounds 4-0-methylgyrophoric acid, gyrophoric acid, evernic acid, lecanoric acid and orsel- linic acid in the same lichen. Read more...

3926

Maass W.S.G. (1975): Lichen substances VIII. Phenolic constituents of Pseudocyphellaria quercifolia, Bryologist, 78: 183-186

Four-O-methylgyrophoric acid has been isolated from one of four chemical variants of Pseudocyphellaria quercifolia. Read more...

3925

Schroeder N. E., Schroeder G. J., Anderegg D. E. (1975): Catalog of lichens of Idaho, Bryologist, 78: 32-43

3924

Kelly B.B. & Becker V.E. (1975): Effects of light intensity and temperature on nitrogen fixation by Lobaria pulmonaria, Sticta weigelii, Leptogium cyanescens and Collema subfurvum, Bryologist, 78(3): 350-355

Nitrogen fixation by the lichens Lobaria pulmonaria, Sticta weigelii, Leptogium cyanescens and Collema subfurvum was measured by the acetylene reduction method. Fixation rates were maximum at 30°C for all species except C. subfurvum which fixed maximally at 25°C. Maximum fixation was observed at 200 μEinsteins m-2 sec-1 for the gelatinous lichens L. cyanescens and C. subfurvum. Saturating light intensities were not attained for L. pulmonaria and S. weigelii. Read more...

3923

Ramaut J. L., Corvisier M. (1975): Les acides licheniques chez Stereocaulon virgatum, Bryologist, 78: 365-366

3922

Showman R. E. (1975): Lichens as indicators of air quality around a coal-fired power generating plant, Bryologist, 78: 1-6

3921

Krog H., Swinscow T. D. V. (1975): Variation in vegetative propagules in African lichen Parmelia lophogena, Bryologist, 78: 67-70

3920

Weber W. A. (1975): Two new species of Lecanora, Section Petrasterion, with a key to North American species, Bryologist, 78: 206-210

3919

Pike L.H., Denison W.C., Tracy D.M., Sherwood M.A. & Rhoades F.M. (1975): Floristic survey of epiphytic lichens and bryophytes growing on old-growth conifers in western Oregon, Bryologist, 78: 389-402

3918

Sigal L. L., Toren D. R. (1975): A new Haematomma from California, Bryologist, 78: 70-72