Parmelia serrana A. Crespo, M.C. Molina & D. Hawksw.
in Molina & al., Lichenologist, 36: 48, 2004.
Synonyms:
Description: Thallus foliose, heteromerous, dorsiventral, adnate to rather loosely attached, forming 3-7(-15) cm wide, regular rosettes. Lobes relatively short and broad, (2.5-)3.5-6 mm wide, often overlapping, sublinear, with more or less rounded apices, without lobules. Upper surface pale greenish-grey to whitish grey, weakly ridged, shiny mainly near the margins, sometimes dull and reticulately cracked, epruinose or rarely weakly pruinose at margins, with a conspicuous network of whitish, at first punctiform but soon linear, laminal and marginal pseudocyphellae, and with cylindrical, simple or branched isidia that are up to 0.2-0.5(-0.8) mm tall and 0.05-0.1 mm wide, and mainly clustered on ridges in the central part of thallus or marginal. Lower surface black, with simple or sparingly furcate (never squarrose), 0.2-1.5 mm long rhizines. Upper cortex paraplectenchymatous, of 2-6 layers of densely packed cells, with a usually non-pored epicortex, the cell walls with isolichenan; medulla white; algal layer continuous; lower cortex paraplectenchymatous, thinner than upper cortex. Apothecia rather frequent, lecanorine, subpedicellate, concave, 1-4 mm across, with a brown disc and an often isidiate thalline margin. Proper exciple thin, colourless; epithecium brownish; hymenium colourless, I+ blue; paraphyses mostly simple or sparingly branched; hypothecium colourless. Asci 8-spored, Lecanora-type. Ascospores 1-celled, hyaline, broadly ellipsoid, 16-18 x 11.5-13 μm. Pycnidia black. Conidia cylindrical to bacilliform 5-6 x c. 1 µm. Photobiont chlorococcoid. Spot tests: upper cortex K+ yellow (but often slowly turning dirty red due to medullary substances), C-, KC-, P- or P+ faintly yellow; medulla K+ yellow turning dirty red, C-, KC-, P+ orange-red. Chemistry: upper cortex with atranorin; medulla with salazinic acid (major), consalazinic acid (minor), plus often traces of protocetraric and rarely lobaric acids, and fatty acids (lichesterinic, protolichesterinic, nephrosterinic and isonephrosterinic acids).
Growth form: Foliose, broad lobed
Substrata: bark and rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by isidia, or isidia-like structures (e.g. schizidia)
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: very rare
Dry submediterranean belt: absent
Humid submediterranean belt: extremely rare
Padanian area: absent
pH of the substrata:
1 2 3 4 5
Solar irradiation:
1 2 3 4 5
Aridity:
1 2 3 4 5
Eutrophication:
1 2 3 4 5
Poleotolerance:
0 1 2 3
Altitudinal distribution:
1 2 3 4 5 6
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
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Occurrence data
Predictive map

Detail from: https://gzu.jacq.org/GZU000286250
GZU000286250 - Crespo,A. & Divakar,P.K. s.n. Label España: Madrid, Cercedilla ; Alt. 1300 m
Habitat On Quercus pyrenaica trunk

Felix Schumm - CC BY 4.0
[ABL22171], Brazil, Rio Grande do Sul, Viamão, nera Parque Itapua,
100 m, 30°05' S, 51°00' W. On granite. Leg. M. Cáceres & A. Aptroot
(nr.22171), 26.09. 2014. - Chemistry: zeorin, atranorin, chloroatranorin,
alectoronic acid, -collatolic acid, methyl-collatolic acid, K+ yellow
> red, KC+ orange, C-, UV+ white.

Felix Schumm - CC BY 4.0
[ABL22171], Brazil, Rio Grande do Sul, Viamão, nera Parque Itapua,
100 m, 30°05' S, 51°00' W. On granite. Leg. M. Cáceres & A. Aptroot
(nr.22171), 26.09. 2014. - Chemistry: zeorin, atranorin, chloroatranorin,
alectoronic acid, -collatolic acid, methyl-collatolic acid, K+ yellow
> red, KC+ orange, C-, UV+ white.

Felix Schumm - CC BY 4.0
[ABL22171], Brazil, Rio Grande do Sul, Viamão, nera Parque Itapua,
100 m, 30°05' S, 51°00' W. On granite. Leg. M. Cáceres & A. Aptroot
(nr.22171), 26.09. 2014. - Chemistry: zeorin, atranorin, chloroatranorin,
alectoronic acid, -collatolic acid, methyl-collatolic acid, K+ yellow
> red, KC+ orange, C-, UV+ white.

Felix Schumm - CC BY 4.0
[ABL22171], Brazil, Rio Grande do Sul, Viamão, nera Parque Itapua,
100 m, 30°05' S, 51°00' W. On granite. Leg. M. Cáceres & A. Aptroot
(nr.22171), 26.09. 2014. - Chemistry: zeorin, atranorin, chloroatranorin,
alectoronic acid, -collatolic acid, methyl-collatolic acid, K+ yellow
> red, KC+ orange, C-, UV+ white.
Growth form: Foliose, broad lobed
Substrata: bark and rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by isidia, or isidia-like structures (e.g. schizidia)
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: very rare
Dry submediterranean belt: absent
Humid submediterranean belt: extremely rare
Padanian area: absent
pH of the substrata:
| 1 | 2 | 3 | 4 | 5 |
Solar irradiation:
| 1 | 2 | 3 | 4 | 5 |
Aridity:
| 1 | 2 | 3 | 4 | 5 |
Eutrophication:
| 1 | 2 | 3 | 4 | 5 |
Poleotolerance:
| 0 | 1 | 2 | 3 |
Altitudinal distribution:
| 1 | 2 | 3 | 4 | 5 | 6 |
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map

