Title: Biblio RTF Export
Author: Biblio 7.x

C. J. B.  Hitch and Millbank, J. W., ?Nitrogen Metabolism in Lichens. VII. Nitrogenase Activity and Heterocyst Frequency in Lichens with Blue-Green Phycobionts?, New Phytologist, vol. 75, pp. 239-244, 1975.

H.  Kristinsson, ?The lichen flora of the outer Hvalfjördur area in West Iceland?, Acta Botanica Islandica, vol. 8, pp. 31-50, 1985.

J. Walter Thomson and Brehmer, B., American Arctic Lichens I. The Macrolichens. Columbia University Press, 1984.

O. W.  Purvis, Moore, D. M., Coppins, B. J., Hawksworth, D. L., and James, P. W., The Lichen Flora of Great Britian and Ireland. London: Natural History Museum Publications, 1992.

B.  McCune and Geiser, L., Macrolichens of the Pacific Northwest. Corvallis: Oregon State University Press, 1997.

O.  Gilbert, Lichens. London: HarperCollins, 2000, p. 288.

T. H.  Nash_, III, Ryan, B. D., Gries, C., and Bungartz, F., Lichen Flora of the Greater Sonoran Desert Region, vol. 1. Tempe: Lichens Unlimited, 2001.

I. M.  Brodo, Sharnoff, S. Duran, Laurie-Bourque, S., and Sharnoff, S., Lichens of North America. Yale University Press, 2001.

T.  Goward and Arsenault, A., ?Cyanolichens and conifers: implications for global conservation?, For. Snow Landsc. Res., vol. 75, pp. 303-318, 2000.

P. M.  McCarthy, ?Checklist of the Lichens of Australia and its Island Territories?, Australian Biological Resources Study, Canberra., 2010.

?Index Fungorum [taxonomy information]?, 2008.

T.  H. Lumbsch and Huhndorf, S. M., ?Outline of Ascomycota - 2007. [Classification Information]?, Myconet, vol. 13, pp. 1-58, 2007.

J. W.  Hinds and Hinds, P. L., The Macrolichens of New England, vol. 96. China: The New York Botanical Garden Press, 2007.

Y. - Q.  Xiao, Wang, L. - S., Liu, P. - G., and Hur, J. - S., ?Notes on the lichen genus Polychidium from China?, Lichenology, vol. 5, pp. 53-57, 2006.