Malmidea cineracea
species of fungus

Malmidea cineracea is a little-known species of corticolous (bark-dwelling), crustose lichen in the family Malmideaceae. It is found in Nicaragua.
Taxonomy
The lichen was formally described as a new species in 2015 by the lichenologists Othmar Breuss and Robert Lücking. The type specimen was collected by the first author from a Caribbean lowland rainforest in the Indio Maíz Biological Reserve (San Juan River). The name of the species, cineracea, translates to "ash-greyish", and alludes to the colour of the margins of its apothecia.
Description
Malmidea cineracea grows on bark and has a granulose-isidiate texture with a greenish-grey colour, appearing dull on a whitish, fibrous base layer, and is about 150–200 μm thick. The individual granules range from 70 to 150 μm in diameter, and their cortex, which is colourless, measures 10 to 15 μm thick. The photobiont is chlorococcoid, forming spherical or flattened groups of 30 to 60 μm in diameter, and consists of cells 6 to 8 μm in diameter. The medulla of the lichen has a yellowish hue and does not react to a solution of potassium hydroxide (K−).
The apothecia, or fruiting bodies, are sessile and range from 0.5 to 1.1 mm in diameter and 0.20 to 0.35 mm in height.
The public source identifies “Malmidea cineracea” as species of fungus. This brief keeps that definition visible, then builds a research path around Malmidea, cineracea and species.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Dec 22, 2023. The linked authority identifier is Q25354704. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2015.
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This entry incorporates text from “Malmidea cineracea” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.