{{Short description|Species of lichen-forming fungus}} {{Use mdy dates|date=November 2025}} {{Use American English|date=November 2025}} {{Speciesbox | image = Fuscidea multispora.png | image_caption = Image of holotype, showing black apothecia, verruculose (warty) thallus and black prothallus. Scale bar = 250 μm | taxon = Fuscidea multispora | authority = Flakus, Kukwa & Rodr.Flakus (2019) }}

'''''Fuscidea multispora''''' is a species of foliicolous (leaf-dwelling), crustose lichen in the family Fuscideaceae.<ref name="CoL_6JSH2"/> Found in Bolivia, it is known to occur only in a single high-altitude locality in a national park, where it grows on the leaves of coniferous trees from the genus ''Podocarpus''.

==Taxonomy==

The lichen was formally described as a new species in 2019 by Adam Flakus, Martin Kukwa, and Pamela Rodriguez-Flakus. The type specimen was collected from Carrasco National Park (Cochabamba Department) at an altitude of {{convert|3283|m|ft|abbr=on}}; here, it was found by the first author growing on the leaves of a ''Podocarpus'' tree. It is only known to occur at the type locality, which is Andean forest dominated by ''Podocarpus'' and ''Polylepis'' trees.<ref name="Guzow-Krzemińska et al. 2019"/>

==Description==

The lichen has a greyish-green to brownish thallus with a verruculose surface texture (as if covered with tiny warts); it reaches a diameter of {{convert|3|–|6|mm|in|abbr=on}}. The prothallus is black. Apothecia are dark brown to black with a round outline, measuring 0.2–0.6&nbsp;mm in diameter; they have a matte, dark brown to black {{lichengloss|disk}} that is flat to somewhat concave. The {{lichengloss|excipulum}} (the apothecial margin) is the same color as the disk, and measures 40–80&nbsp;μm wide. The ascospores typically have dimensions in the range 7–8.5 by 3.5–4.5&nbsp;μm. ''Fuscidea multispora'' contains sekikaic acid, which is a lichen product that can be detected using thin-layer chromatography. The species epithet ''multispora'' makes reference to the multispored asci, which hold 16 ascospores.<ref name="Guzow-Krzemińska et al. 2019"/>

==References== {{Reflist|refs=

<ref name="CoL_6JSH2">{{Catalogue of Life |id=6JSH2 |title=''Fuscidea multispora'' Flakus, Kukwa & Rodr. Flakus |access-date=November 30, 2025}}</ref>

<ref name="Guzow-Krzemińska et al. 2019">{{cite journal |last1=Guzow-Krzemińska |first1=Beata |last2=Flakus |first2=Adam |last3=Kosecka |first3=Magdalena |last4=Jabłońska |first4=Agnieska |last5=Rodriguez-Flakus |first5=Pamela |last6=Kukwa |first6=Martin |year=2019 |title=New species and records of lichens from Bolivia |journal=Phytotaxa |volume=397 |issue=4 |pages=257–279 |doi=10.11646/phytotaxa.397.4.1 |doi-access=free}}</ref>

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{{Taxonbar|from=Q107687154}}

Category:Umbilicariales Category:Lichen species Category:Lichens described in 2019 Category:Lichens of Bolivia Category:Taxa named by Adam Grzegorz Flakus Category:Taxa named by Pamela Rodriguez-Flakus Category:Taxa named by Martin Kukwa