Four new Micarea species from the montane cloud forests of Taita Hills, Kenya

Show simple item record

dc.contributor.author Kantelinen, Annina
dc.contributor.author Hyvärinen, Marko
dc.contributor.author Kirika, Paul
dc.contributor.author Myllys, Leena
dc.date.accessioned 2021-04-20T13:14:03Z
dc.date.available 2021-04-20T13:14:03Z
dc.date.issued 2021-01
dc.identifier.citation Kantelinen , A , Hyvärinen , M , Kirika , P & Myllys , L 2021 , ' Four new Micarea species from the montane cloud forests of Taita Hills, Kenya ' , Lichenologist , vol. 53 , no. 1 , pp. 81-94 . https://doi.org/10.1017/S0024282920000511
dc.identifier.other PURE: 161317710
dc.identifier.other PURE UUID: 34b39535-b791-40e1-b0b5-7a76823c5267
dc.identifier.other ORCID: /0000-0002-9566-9473/work/91610394
dc.identifier.other ORCID: /0000-0001-8664-7662/work/91611164
dc.identifier.other ORCID: /0000-0001-8736-0946/work/91611333
dc.identifier.other WOS: 000627823800007
dc.identifier.uri http://hdl.handle.net/10138/329202
dc.description.abstract The genus Micarea was studied for the first time in the Taita Hills, Kenya. Based on new collections and existing data, we reconstructed a phylogeny using ITS, mtSSU and Mcm7 regions, and generated a total of 27 new sequences. Data were analyzed using maximum likelihood and maximum parsimony methods. Based mainly on new collections, we discovered four undescribed well-supported lineages, characterized by molecular and phenotypic features. These lineages are described here as Micarea pumila, M. stellaris, M. taitensis and M. versicolor. Micarea pumila is characterized by a minutely granular thallus, small cream-white or pale brownish apothecia, small ascospores and the production of prasinic acid. Micarea stellaris has a warted-areolate thallus, cream-white apothecia usually darker at the centre, a hymenium of light grey or brownish pigment that dissolves in K, and intense crystalline granules that appear as a belt-like continuum across the lower hymenium when studied in polarized light. Micarea taitensis is characterized by a warted-areolate thallus and cream-white or yellowish apothecia that sometimes produce the Sedifolia-grey pigment. Micarea versicolor is characterized by a warted-areolate, sometimes partly granular thallus and apothecia varying from cream-white to light grey to blackish in colour. This considerable variation in the coloration of its apothecia is caused by an occasional mixture of the Sedifolia-grey pigment in the epihymenium and another purplish brown pigment in the hymenium. Micarea stellaris, M. taitensis and M. versicolor produce methoxymicareic acid. The main distinguishing characters are presented in a species synopsis. Three of the new species are nested in the M. prasina group, and the fourth one (M. taitensis) resolves as a basal taxon to the M. prasina group. The new species inhabit montane cloud forests, which have fragmented dramatically throughout the Eastern Arc Mountains in recent decades. fi
dc.description.abstract The genus Micarea was studied for the first time in the Taita Hills, Kenya. Based on new collections and existing data, we reconstructed a phylogeny using ITS, mtSSU and Mcm7 regions, and generated a total of 27 new sequences. Data were analyzed using maximum likelihood and maximum parsimony methods. Based mainly on new collections, we discovered four undescribed well-supported lineages, characterized by molecular and phenotypic features. These lineages are described here as Micarea pumila, M. stellaris, M. taitensis and M. versicolor. Micarea pumila is characterized by a minutely granular thallus, small cream-white or pale brownish apothecia, small ascospores and the production of prasinic acid. Micarea stellaris has a warted-areolate thallus, cream-white apothecia usually darker at the centre, a hymenium of light grey or brownish pigment that dissolves in K, and intense crystalline granules that appear as a belt-like continuum across the lower hymenium when studied in polarized light. Micarea taitensis is characterized by a warted-areolate thallus and cream-white or yellowish apothecia that sometimes produce the Sedifolia-grey pigment. Micarea versicolor is characterized by a warted-areolate, sometimes partly granular thallus and apothecia varying from cream-white to light grey to blackish in colour. This considerable variation in the coloration of its apothecia is caused by an occasional mixture of the Sedifolia-grey pigment in the epihymenium and another purplish brown pigment in the hymenium. Micarea stellaris, M. taitensis and M. versicolor produce methoxymicareic acid. The main distinguishing characters are presented in a species synopsis. Three of the new species are nested in the M. prasina group, and the fourth one (M. taitensis) resolves as a basal taxon to the M. prasina group. The new species inhabit montane cloud forests, which have fragmented dramatically throughout the Eastern Arc Mountains in recent decades. en
dc.format.extent 14
dc.language.iso eng
dc.relation.ispartof Lichenologist
dc.rights cc_by_nc_nd
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject ASCOMYCOTA
dc.subject EAST
dc.subject Eastern Arc Mountains
dc.subject GENUS
dc.subject LECANORALES
dc.subject LICHEN-FORMING FUNGI
dc.subject OSTROPALES
dc.subject PHYLOGENY
dc.subject PRASINA GROUP
dc.subject RECORDS
dc.subject TANZANIA
dc.subject biodiversity hotspot
dc.subject endemism
dc.subject lichens
dc.subject molecular phylogenetics
dc.subject taxonomy
dc.subject 11831 Plant biology
dc.title Four new Micarea species from the montane cloud forests of Taita Hills, Kenya en
dc.type Article
dc.contributor.organization Botany
dc.contributor.organization Finnish Museum of Natural History
dc.contributor.organization Plant Adaptation and Conservation
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1017/S0024282920000511
dc.relation.issn 0024-2829
dc.rights.accesslevel openAccess
dc.type.version acceptedVersion

Files in this item

Total number of downloads: Loading...

Files Size Format View
Taita_Micarea_2020_Open_access.pdf 1.881Mb PDF View/Open

This item appears in the following Collection(s)

Show simple item record