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| The ] of ''Micarea termitophila'' is {{lichengloss|corticate}} and {{lichengloss|plicate}} with a greenish hue, approximately 50 mm thick, and has a dull and roughened surface texture. The thallus houses {{lichengloss|myrmecioid}} algae, about 2–4 mm in diameter, beneath a thin, ] cortex.The authors note that it somewhat resembles a crustose '']'' in thallus form.<ref name="Aptroot & Cáceres 2014"/> | The ] of ''Micarea termitophila'' is {{lichengloss|corticate}} and {{lichengloss|plicate}} with a greenish hue, approximately 50 mm thick, and has a dull and roughened surface texture. The thallus houses {{lichengloss|myrmecioid}} algae, about 2–4 mm in diameter, beneath a thin, ] cortex.The authors note that it somewhat resembles a crustose '']'' in thallus form.<ref name="Aptroot & Cáceres 2014"/> | ||
| ] (fruiting bodies) are {{lichengloss|appressed}}, emerging between the thallus {{lichengloss|granules}} and often becoming prominent, measuring 0.2–0.3 mm in diameter. They are typically round or {{lichengloss|lobate}}, featuring a convex, dull, black {{lichengloss|disc}}. The ] is clear, ranging from |
] (fruiting bodies) are {{lichengloss|appressed}}, emerging between the thallus {{lichengloss|granules}} and often becoming prominent, measuring 0.2–0.3 mm in diameter. They are typically round or {{lichengloss|lobate}}, featuring a convex, dull, black {{lichengloss|disc}}. The ] is clear, ranging from 30 to 50 ] in height and turns violet when treated with ] (KOH) solution, especially noticeable in the upper parts. The {{lichengloss|hypothecium}} is purplish-brown, turning orange-brown with KOH. This species produces 8-spored ] and {{lichengloss|pyriform}}, aseptate, ] ascospores measuring 7–9 by 3.0–3.5 ]. ] are found on the same thallus, often grouped separately, with black, {{lichengloss|bacilliform}} conidia measuring about 4–5 by 1 μm.<ref name="Aptroot & Cáceres 2014"/> | ||
| Chemical tests on the thallus, including ] and various ] (C, K, KC, P), are negative, and no ]s have been detected with ].<ref name="Aptroot & Cáceres 2014"/> | Chemical tests on the thallus, including ] and various ] (C, K, KC, P), are negative, and no ]s have been detected with ].<ref name="Aptroot & Cáceres 2014"/> | ||
Latest revision as of 20:24, 28 December 2024
Species of lichen
| Micarea termitophila | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Pilocarpaceae |
| Genus: | Micarea |
| Species: | M. termitophila |
| Binomial name | |
| Micarea termitophila Aptroot & M.Cáceres (2014) | |
| Holotype: Fazenda São Francisco, Brazil | |
Micarea termitophila is a species of lichen in the family Physciaceae. It grows on the soil of termite nests in Brazil.
Taxonomy
The lichen Micarea termitophila was formally described by the lichenologists André Aptroot and Marcela Cáceres in 2014. The holotype, collected from a black termite nest in Amazonas, Brazil, is preserved at the ISE herbarium (Federal University of Sergipe), with an isotype at ABL (University of Groningen).
Description
The thallus of Micarea termitophila is corticate and plicate with a greenish hue, approximately 50 mm thick, and has a dull and roughened surface texture. The thallus houses myrmecioid algae, about 2–4 mm in diameter, beneath a thin, hyaline cortex.The authors note that it somewhat resembles a crustose Stereocaulon in thallus form.
Apothecia (fruiting bodies) are appressed, emerging between the thallus granules and often becoming prominent, measuring 0.2–0.3 mm in diameter. They are typically round or lobate, featuring a convex, dull, black disc. The hymenium is clear, ranging from 30 to 50 µm in height and turns violet when treated with potassium hydroxide (KOH) solution, especially noticeable in the upper parts. The hypothecium is purplish-brown, turning orange-brown with KOH. This species produces 8-spored asci and pyriform, aseptate, hyaline ascospores measuring 7–9 by 3.0–3.5 μm. Pycnidia are found on the same thallus, often grouped separately, with black, bacilliform conidia measuring about 4–5 by 1 μm.
Chemical tests on the thallus, including UV light and various spot tests (C, K, KC, P), are negative, and no lichen products have been detected with thin-layer chromatography.
Habitat and distribution
At the time of its original publication, Micarea termitophila was known only to occur only in its type locality in Brazil, where it grows on termite nests attached to trees within primary rainforests.
References
- ^ Aptroot, André; Cáceres, Marcela Eugenia da Silva (2014). "New lichen species from termite nests in rainforest in Brazilian Rondônia and adjacent Amazonas". The Lichenologist. 46 (3): 365–372. doi:10.1017/s0024282913000340.
- "Micarea termitophila Aptroot & M. Cáceres". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 27 December 2024.
| Taxon identifiers | |
|---|---|
| Micarea termitophila | |