{{Short description|Species of lichen-forming fungus}} {{Use dmy dates|date=February 2026}} {{Use Oxford spelling|date=February 2026}} {{Speciesbox | image = | image_caption = | taxon = Micarea pseudolignaria | authority = M.Brand, van den Boom & Sérus. (2014) | mapframe = yes | mapframe-zoom = 8 | mapframe-coordinates = {{coord|21|04|46|S|55|31|38|E}} | mapframe-caption = Type locality: Forêt de Bébour, Réunion }}

'''''Micarea pseudolignaria''''' is a species of lichen-forming fungus in the family Ectolechiaceae.<ref name="CoL_42LSR"/> It was described as new to science in 2014 from the tropical island of Réunion (Mascarene archipelago) in the Indian Ocean. The type collection was made in the {{ill|Forêt de Bébour|fr}}, on the path from Bélouve to Cabane Dufour, where it grew on soil in wet montane ericoid ericoid (heather-family) thickets at about 1,740&nbsp;m elevation, overgrowing decaying bryophytes.<ref name="Brand et al. 2014"/>

The lichen forms a small, greyish-green body (thallus), about 2&nbsp;cm across, with a cracked surface of slightly domed patches ({{lichengloss|areoles}}, about 0.2–0.3&nbsp;mm wide). It lacks a distinct outer skin ({{lichengloss|cortex}}), though parts of the surface are covered by a thin, clear dead layer (an {{lichengloss|epinecral layer}}). Its fruiting bodies (apothecia) are shiny black, convex, up to about 0.6&nbsp;mm wide, and often merge to form compound structures. The ascospores are oval (ellipsoid), usually 2-celled (1-septate), and measure about 8.0–9.2 × 3.0–3.3&nbsp;μm. Chemically, it contains an unidentified substance. The authors compared it with the similar ''Micarea lignaria'', which differs in having larger spores with more cross-walls and a different set of lichen substances.<ref name="Brand et al. 2014"/> The species was later compared with ''M.&nbsp;rubioides'', from which it differs in lacking soralia, having shorter microconidia, and containing an unidentified PD− substance rather than argopsin; its ascospores are also shorter (8.0–9.2&nbsp;μm).<ref name="Coppins et al. 2021"/>

==References== <references>

<ref name="Brand et al. 2014">{{cite journal |last1=Brand |first1=A. Maarten |last2=van den Boom |first2=Pieter P.G. |last3=Sérusiaux |first3=Emmanuël |title=Unveiling a surprising diversity in the lichen genus ''Micarea'' (Pilocarpaceae) in Réunion (Mascarenes archipelago, Indian Ocean) |journal=The Lichenologist |volume=46 |issue=3 |year=2014 |pages=413–439 |doi=10.1017/S0024282913000911}}</ref>

<ref name="CoL_42LSR">{{Catalogue of Life |id=42LSR |title=''Micarea pseudolignaria'' M. Brand, van den Boom & Sérus. |access-date=26 February 2026}}</ref>

<ref name="Coppins et al. 2021">{{cite journal |last1=Coppins |first1=Brian J. |last2=Kashiwadani |first2=Hiroyuki |last3=Moon |first3=Kwang Hee |last4=Spribille |first4=Toby |last5=Thor |first5=Göran |title=The genera ''Brianaria'' (Psoraceae) and ''Micarea'' (Pilocarpaceae) in Japan, with reports on other interesting species in Asia |journal=The Lichenologist |volume=53 |issue=1 |year=2021 |doi=10.1017/S0024282920000468 |pages=35–44}}</ref>

</references>

{{Taxonbar|from=Q80878037}}

pseudolignaria Category:Lichen species Category:Lichens described in 2014 Category:Lichens of Réunion Category:Taxa named by Pieter Pacificus Gerardus van den Boom Category:Taxa named by Emmanuël Sérusiaux