Name: Lecanora muralis (Schreber) Rabenh.
Most Confident Observations:
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First person to use this name on MO: Jason Hollinger

Nomenclature:

Rank: Species

Status: Accepted

Name: Lecanora muralis

Author: (Schreber) Rabenh.

Citation: Deutschl. Krypt.-Fl. 2:42 (1845)

Deprecated Synonyms: Lecanora diffracta Ach., Protoparmeliopsis muralis (Schreber) M. Choisy

Classification:

Domain: Eukarya

Kingdom: Fungi

Phylum: Ascomycota

Class: Lecanoromycetes

Order: Lecanorales

Family: Lecanoraceae

Genus: Lecanora

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Lifeform:
Brief Description:

Crustose lichen, forming striking, beautiful, greenish, lobate rosettes (sometimes confluent with nearby thalli) on most kinds of rock. At first closely-appressed, but in age the center buckles out and often comes off the rock completely. Abundant brownish to yellowish to orangish to greenish apothecia (often variably colored on the same thallus) packed tightly in the center. Lobe tips are somewhat thickened around the edge making them look a bit concave. Typically waxy in appearance, although it can be pruinose esp. near the tips. Though technically crustose, they often form a rudimentary lower cortex near the lobe tips, making them “honorary foliose” lichens.

One of the few (of many many) Lecanora that can be more-or-less reliably identified in the field. It is, however, a rather variable species, with several subspecies and varieties defined throughout the world. It can be non-pruinose or heavily pruinose, gray or greenish or yellowish, abundantly fertile or sparsely so, with strongly radiating or randomly overlapping lobes, and has light-colored but extremely variably-colored apothecia.

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Created: 2008-10-05 14:20:41 PDT (-0700) by Jason Hollinger (jason)
Last modified: 2010-04-11 06:31:26 PDT (-0700) by Jason Hollinger (jason)
Viewed: 733 times, last viewed: 2018-04-21 21:45:06 PDT (-0700)
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