Myriolecis salina (H. Magn.) Śliwa, Zhao Xin & Lumbsch

in Zhao Xin & al., Fungal Divers., 78: 301, 2016. Basionym: Lecanora salina H. Magn. - Bot. Not.: 229, 1926.
Synonyms:
Distribution: C - Sar (Rizzi & al. 2011). S - Si (Ottonello & Puntillo 1995).
Description: Thallus crustose, usually poorly evident, of more or less dispersed, rounded, white-grey to yellowish grey granules most evident near the apothecia. Apothecia lecanorine, 0.2-0.8 mm across, sessile and constricted at base, with a flat to slightly convex, pale brown, epruinose disc, and a prominent, smooth, entire or slightly crenulate thalline margin. Thalline exciple 70-160 μm wide, corticate, filled with two types of crystals visible under polarized light: coarse crystals soluble in K and insoluble in N, and small crystals insoluble in K and in N; epithecium yellow-brown, K-, N-, with small crystals insoluble both in K and in N; hymenium colourless, 50-60 μm high; paraphyses simple or sparingly branched in upper part, 1.5-2 μm thick at base, the apical cells slightly swollen; hypothecium colourless or very pale yellow, 70-80 μm high, without crystals. Asci 8-spored, clavate, very thin-walled, with a K/I+ blue, tall tholus penetrated by a faintly amyloid apical cushion, the wall K/I-, surrounded by a blue outer layer, Lecanora-type. Ascospores 1-celled, hyaline, broadly ellipsoid to ellipsoid, (8.5-)10-12 x 5-7 μm. Photobiont chlorococcoid. Spot tests: thallus and apothecial margin K-, C+ pink, KC- or KC+ pink, P-; apothecial disc K-, C-, KC-, P-. Chemistry: thallus with gyrophoric acid and lichenxanthone.
Note: a rather poorly known, mostly northern taxon of the M. albescens complex, occurring on coastal siliceous rocks. The Italian records are somewhat dubious. See also notes on M. liguriensis and M. oyensis.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study
Taxon bound to maritime-coastal situations

Commonnes-rarity: (info)

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

pH of the substrata:

12345

Solar irradiation:

12345

Aridity:

12345

Eutrophication:

12345

Poleotolerance:

0123

Altitudinal distribution:

123456


Predictive model
Herbarium samples

L. Śliwa Herbarium: Degelius s.n., MIN Scale bar = 1 mm.


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


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


Reidar Haugan - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC


L. Śliwa
Herbarium: Degelius s.n., MIN
Scale bar = 1 mm.