Pseudopyrenula miniflavida

Pseudopyrenula miniflavida
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Dothideomycetes
Order:	Trypetheliales
Family:	Trypetheliaceae
Genus:	Pseudopyrenula
Species:	P. miniflavida
Binomial name
	Pseudopyrenula miniflavida; Aptroot & A.D.Nunes (2019)

Pseudopyrenula miniflavida is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Brazil, it was formally described as a new species in 2019 by lichenologists André Aptroot and A.D.Nunes. The type specimen was collected from Mata do IFS (Quissamã, Sergipe) at an altitude of 50 m (160 ft). The lichen has a whitish-grey thallus without a cortex. It has hemispherical ascomata that are mostly black but sometimes partly covered with a whitish pruina. The hamathecium (i.e., all of the fungal hyphae or other tissues between asci) contains yellow oil droplets that dissolve but do not change colour in a solution of KOH. The ascospores are hyaline with three septa and measure 15–17 by 5.5–6.5 μm. The specific epithet miniflavida alludes to both its small spores (the smallest in genus Pseudopyrenula) as well as the characteristic yellow oil droplets in the hamathecium.[1]

References

Aptroot, André; Sipman, Harrie J.M.; Barreto, Flávia Maria Oliveira; Nunes, Ariel Dantas; Cáceres, Marcela Eugenia da Silva (2019). "Ten new species and 34 new country records of Trypetheliaceae". The Lichenologist. 51 (1): 27–43. doi:10.1017/s002428291800052x. S2CID 92498542.

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[Aptroot_et_al._2019-1] Aptroot, André; Sipman, Harrie J.M.; Barreto, Flávia Maria Oliveira; Nunes, Ariel Dantas; Cáceres, Marcela Eugenia da Silva (2019). "Ten new species and 34 new country records of Trypetheliaceae". The Lichenologist. 51 (1): 27–43. doi:10.1017/s002428291800052x. S2CID 92498542.