Dictyomeridium lueckingii
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Dothideomycetes
Order: Trypetheliales
Family: Trypetheliaceae
Genus: Dictyomeridium
Species:
D. lueckingii
Binomial name
Dictyomeridium lueckingii
Flakus & Aptroot (2016)

Dictyomeridium lueckingii is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae.[1] Found in Bolivia, it was formally described as a new species in 2016 by Adam Flakus and André Aptroot. The type specimen was collected by the first author from Entre Ríos near Soledad (Burdett O'Connor Province) at an elevation of 1,700 m (5,600 ft). It is only known to occur at the type locality, in the Tucumano-Boliviano montane forest. The species epithet honours German lichenologist Robert Lücking, "for his magnificent contribution to the knowledge of tropical lichens, on the occasion of his 50th birthday".[2]

Description

Identifying features of Dictyomeridium lueckingi include an ecorticate and somewhat pruinose thallus, pyriform, partially-immersed, single, black and white-pruinose ascomata with eccentric, beaked ostioles, a distinct hamathecium, hyaline, amyloid, small somewhat muriform ascospores, and the occurrence of the lichen product lichexanthone. The latter substance causes the thallus and ascomata surface to fluoresce yellow when lit with a long-wavelength UV light. Its ascospores are somewhat muriform (divided into locules with 5–6 transverse septa and 1–2 longitudinal septa), and measure 25–35 by 12–17 μm. The morphologically similar species D. proponens and D. paraproponens can be distinguished from D. lueckingii by their larger spores.[2]

References

  1. ↑ "Dictyomeridium lueckingii Flakus & Aptroot". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 15 March 2023.
  2. 1 2 Flakus, Adam; Kukwa, Martin; Aptroot, André (2016). "Trypetheliaceae of Bolivia: an updated checklist with descriptions of twenty-four new species". The Lichenologist. 48 (6): 661–692. doi:10.1017/s0024282915000559. S2CID 89161746.
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