IMA Fungus 2(1): 71-79, doi: 10.5598/imafungus.2011.02.01.10
Racoleus, a new genus of sterile filamentous lichen-forming fungi from the tropics, with observations on the nomenclature and typification of Cystocoleus and Racodium
expand article infoDavid L Hawksworth‡§|, Rolf Santesson#, Leif Tibell¤
‡ Royal Botanic Gardens, Kew, Surrey, United Kingdom§ Natural History Museum, London, United Kingdom| University of Southampton, Southampton, United Kingdom¶ Jilin Agricultural University, Chanchung, China# Uppsala University, Museum of Evolution, Uppsala, Sweden¤ Uppsala University, Department of Systematic Biology, Institute for Organismal Biology, Uppsala, Sweden
© David Hawksworth, Rolf Santesson, Leif Tibell.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY-NC 4.0), which permits to copy and distribute the article for non-commercial purposes, provided that the article is not altered or modified and the original author and source are credited.
Citation: Hawksworth D, Santesson R, Tibell L (2011) Racoleus, a new genus of sterile filamentous lichen-forming fungi from the tropics, with observations on the nomenclature and typification of Cystocoleus and Racodium. IMA Fungus 2(1): 71-79. https://doi.org/10.5598/imafungus.2011.02.01.10
Open Access
Abstract
Racoleus trichophorus gen. sp. nov. is described for a tropical sterile filamentous lichenized fungus which overgrows various crustose lichens on bark. It shares some features with Cystocoleus and Racodium, but is unique in having non-lichenized long lateral spines. The genus, which is known from China, the Ivory Coast, and Peru, is of uncertain systematic position; on the basis of morphological similarities, however, it may be referred to “? Capnodiales (incertae sedis)” ad interim. In addition, the nomenclature and typification of the monotypic genera Cystocoleus and Racodium are reviewed, and lectotypes selected for the type of each. The available information on the ecology and distribution of these two genera is also summarized, and scanning electron micrographs (SEM) of all three species are presented for the first time.
Keywords
Ascomycota, Capnodiales, Coenogonium, lichens, Racoleus trichophorus, scanning electron microscopy, tropical fungi