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Further contributions to the lichen genus Leptogium in southern South America

Published online by Cambridge University Press:  31 October 2013

Per M. JØRGENSEN  and
William R. BUCK
Per M. JØRGENSEN
Affiliation:
University of Bergen – Bergen Museum, Arboretum and Botanical garden Mildeveien 240, Hjellestad 5259, Norway. Email: [email protected]
William R. BUCK
Affiliation:
New York Botanical Garden, Institute of Systematic Botany, Bronx, New York, USA
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Abstract

Two new species in Leptogium are described and illustrated from the Cape Horn region: L. auriculatum and L. adnatum both grow on wet rocks, the former by a river, the latter on coastal rocks. In addition to the special habitat the latter is easily identified on the closely appressed thallus which centrally often have densely packed squamules in intricately folded structures. Leptogium auriculatum is characterized by the regular, rounded lobes with thickened margins carrying granular isidia. The total number of Leptogium species known in the region at present is 19, including the previously doubtful L. patagonicum Zahlbr., which is here confirmed as a distinct species.

Keywords

newregionspeciessubantarctic
Type
Articles
Information
The Lichenologist , Volume 45 , Issue 6 , November 2013 , pp. 787 - 789
Copyright
Copyright © British Lichen Society 2013 

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References

Galloway, D. J. (2008) Austral lichens 1690–2008. New Zealand Journal of Botany 40: 433–521.Google Scholar
Galloway, D. J. & Jørgensen, P. M. (1995) The lichen genus Leptogium (Collemataceae) in southern Chile, South America. In Flechten Follmann. Contributions to Lichenology in Honour of Gerhard Follmann. Geobotanical and Phytotaxonomical Study Group, Botanical Institute (Daniëls, F. J. A., Schulz, M. & Peine, J., eds): 227–247. Cologne: University of Cologne.Google Scholar
Jørgensen, P. M. (2001) On the identity of Leptogium patagonicum Zahlbr. Lichenologist 33: 171–172.Google Scholar