Punctelia nebulata

Punctelia nebulata
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Lecanoromycetes
Order:	Lecanorales
Family:	Parmeliaceae
Genus:	Punctelia
Species:	P. nebulata
Binomial name
	Punctelia nebulata; Elix & J.Johnst. (1988)

Punctelia nebulata is a species of foliose lichen in the family Parmeliaceae. Found in Australia, it was formally described as a new species in 1988 by lichenologists John A. Elix and Jen Johnston. The type was collected in New South Wales, on a roadside north of Gilgandra. The lichen grows on Callitris trees in semi-arid, inland regions of southern Australia.^[1]

It has a foliose thallus closely attached to its substrate. The upper surface of the thallus is pale grey to mineral grey, sometimes blackening with age. The thallus is up to 8 cm (3.1 in) in diameter, made of somewhat irregularly shaped, crowded lobes measuring 2–4 cm (0.8–1.6 in) wide. The lower surface of the thallus is pale.^[1]

The major secondary compounds in Punctelia nebulata are atranorin and . Punctelia nebulata had been previously misidentified with Punctelia subalbicans, from which it can be only reliably identified using chemical methods: P. subalbicans contains lecanoric acid in the medulla, whereas the thallus of P. nebulata does not have any lichen acids.^[1]

References[]

^ ^a ^b ^c Elix, John A.; Johnston, Jen (1988). "New species in the lichen family Parmeliaceae (Ascomycotina) from the Southern Hemisphere". Mycotaxon. 31 (2): 491–510.

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[Elix_&_Johnston_1988-1] Elix, John A.; Johnston, Jen (1988). "New species in the lichen family Parmeliaceae (Ascomycotina) from the Southern Hemisphere". Mycotaxon. 31 (2): 491–510.

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