Bellemerea subsorediza (Lynge) R. Sant.

in Moberg, Thunbergia, 5: 2, 1987. Basionym: Lecidea subsorediza Lynge in Dahl & al. - Skr. om Svalbard og Ishavet, 70: 22, 1937.
Synonyms: Aspicilia alpina subsp. fraudans Räsänen; Aspicilia subsorediza (Lynge) R. Sant.
Distribution: N - Frl (Tretiach & Hafellner 2000), TAA (Hertel & Schuhwerk 2010), Lomb (Nascimbene & al. 2021).
Description: Thallus crustose, episubstratic, rimose-areolate, white to yellowish white, but usually blue-grey pruinose, often delimited by a black prothallus. Medulla white, I+ blue. Areoles discrete, developing on a black prothallus, 0.4-0.6(-1) mm wide, each one with a single, well-defined, round and crater-like, laminal soralium bearing blackish, granular soredia 40-50 μm in diam. Apothecia extremely rare (not observed in Italian material). Photobiont chlorococcoid. Spot tests: medulla K+ yellow turning red (needle-like crystals), C-, KC-, P+ yellow-orange, N+ red. Chemistry: medulla with norstictic acid.
Note: on siliceous rocks in open lichen communities near or above treeline (i.e. near glaciers); probably more widespread in the Alps, but overlooked, being mostly sterile.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)

Commonnes-rarity: (info)

Alpine belt: rather rare
Subalpine belt: very rare
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent


pH of the substrata:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php


Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/
Courtesy: Anita Stridvall


Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/
Courtesy: Anita Stridvall



P.L. Nimis CC BY-SA 04
TSB 38540



P.L. Nimis CC BY-SA 04
TSB 38540



P.L. Nimis CC BY-SA 04
TSB 38540