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Punctelia tomentosula
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Lecanoromycetes
Order:	Lecanorales
Family:	Parmeliaceae
Genus:	Punctelia
Species:	P. tomentosula
Binomial name
Punctelia tomentosula Kurok. (1999)

Punctelia tomentosula is a species of foliose lichen in the family Parmeliaceae. Found in Peru, it was described as a new species in 1999 by Japanese lichenologist Syo Kurokawa.

The lichen has dense, dimorphous rhizines, a medulla that produces a rose colour with a C+ lichen spot test (caused by the presence of lecanoric acid), and short-filiform (threadlike) conidia that measure 7–9 μm long. It has abundant pseudocyphellae and soralia on the thallus surface, and a brown lower surface. Punctelia osorioi, found in South Brazil, is somewhat similar in appearance – particularly the dense rhizines. However, it does not have soralia, it has short, hook-like (unciform) conidia that are shorter than those in P. tomentosula (5−6 μm), and it does not have lecanoric acid in the medulla.

References

1. Kurokawa, S. (1999). "Notes on Flavopunctelia and Punctelia (Parmeliaceae), with descriptions of four new species". Bulletin of the Botanical Garden of Toyama. 4: 25–32.
2. Canêz, Luciana da Silva; Marcelli, Marcelo P. (2010). "Punctelia osorioi, a new species of Parmeliaceae from South Brazil". Mycotaxon. 111: 45–49. doi:10.5248/111.45.

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