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1 December 2015 New Records of Lichens and Lichenicolous Fungi from La Gomera (Canary Islands, Spain), Including the New Species: Usnea boomiana P. Clerc
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Abstract

Van Den Boom, P. P. G., P. Clerc & D. Ertz (2015). New records of lichens and lichenicolous fungi from La Gomera (Canary Islands, Spain), including the new species: Usnea boomiana P. Clerc. Candollea 70: 165–177. In English, English abstract. DOI:  http://dx.doi.org/10.15553/c2015v702a1

Lichens and lichenicolous fungi are very diverse in the Canary Islands but the flora is still poorly known despite numerous recent publications. For this reason, two field trips were undertaken in 2011 in order to study the lichen flora of La Gomera (western Canary Islands). About 1000 specimens were collected in the different habitats of the island. In addition, c. 200 specimens collected in 1986, and c. 60 specimens from the Oslo herbarium (O) were studied. As a result, an annotated list of 107 newly recorded lichens and lichenicolous fungi from La Gomera is presented. Terricolous, saxicolous, as well as corticolous species are included. Further notes are given for 17 taxa that are new for the Canary Islands. Hypotrachyna meyeri (Zahlbr.) Streim. is new to Macaronesia. In addition, one species is newly described in the genus Usnea Dill. ex Adans., Usnea boomiana P. Clerc characterized notably by large and convex soralia and by the presence of caperatic acid in the medulla.

© CONSERVATOIRE ET JARDIN BOTANIQUES DE GENÉVE 2015
Pieter P. G. van den Boom, Philippe Clerc, and Damien Ertz "New Records of Lichens and Lichenicolous Fungi from La Gomera (Canary Islands, Spain), Including the New Species: Usnea boomiana P. Clerc," Candollea 70(2), 165-177, (1 December 2015). https://doi.org/10.15553/c2015v702a1
Received: 20 November 2014; Accepted: 1 March 2015; Published: 1 December 2015
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