Imshaugia aleurites (Ach.) S.L.F. Mey. | Dolichens

Imshaugia aleurites (Ach.) S.L.F. Mey.

Mycologia, 77: 337, 1985. Basionym: Lichen aleurites Ach. - Lichenogr. Suec. Prodr.: 117, 1799.

Synonyms: Cetraria aleurites (Ach.) Th. Fr.; Imbricaria aleurites (Ach.) DC.; Parmelia aleurites (Ach.) Ach.; Parmeliopsis aleurites (Ach.) Nyl.; Parmeliopsis pallescens (Hoffm.) Hillmann; Parmeliopsis placorodia sensu Jatta non auct.; Platysma diffusum (Weber) Nyl.

Description: Thallus foliose, heteromerous, dorsiventral, adnate, forming orbicular to irregular (2-)3-5(-7) cm wide rosettes. Lobes 1-4 mm long, 0.5-1.5(-3) mm wide, flat, linear to sublinear, divergent to contiguous, irregularly branched, with rounded, often forked tips. Upper surface whitish grey to bluish grey, sometimes wrinkled or shallowly pitted in older parts, shiny at the tips of lobes, with abundant, laminal, cylindrical, simple to branched, to c. 2 mm tall, fragile isidia that with age tend to break and coalesce into a granulose mass. Lower surface white to tan, somewhat wrinkled, with brownish, simple, c. 0.2-0.5(-1) mm long rhizines. Upper cortex paraplectenchymatous, of tightly packed, anticlinally oriented hyphae, with a pored epicortex, the cell walls with Cetraria-type lichenan; medulla white; lower cortex paraplectenchymatous. Apothecia rare, lecanorine, constricted at base, 2-7 mm across, with a convex to flat, brown, epruinose disc and a persistent, often isidiate thalline margin. Epithecium brown; hymenium and hypothecium colourless; paraphyses mostly simple, the apical cells hardly swollen. Asci 8-spored, clavate, the K/I+ blue tholus penetrated by a faintly amyloid apical cushion with parallel or diverging flanks, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, (5-)6-7(-9) x (3.5-)4-5(-6) µm. Pycnidia rare, black, mostly marginal, clearly projecting. Conidia ellipsoid to dumbbell-shaped, 3-4(-5) x c. 1 µm, Psora-type, borne terminally from joints of conidiogenous hyphae. Photobiont chlorococcoid. Spot tests: K+ deep yellow, C-, KC-, P+ deep yellow-orange, UV-. Chemistry: upper cortex with atranorin and chloroatranorin; medulla with thamnolic acid (major) and decarboxythamnolic acid (trace).

Growth form: Foliose, narrow lobed

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: very common

Montane belt: very rare

Dry submediterranean belt: absent

Humid submediterranean belt: absent

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

Model Image

Current prediction (1981-2010)

Model Image

Future prediction (2071-2100) SSP 1-2.6

Model Image

Future prediction (2071-2100) SSP 5-8.5

Predictive maps according to Francesconi et al. 2025

Felix Schumm - CC BY-SA 4.0

[20369], U.S.A. Carolina Borealis, Grandville County, Creedmore, ad truncum Pini sp.. Leg. W.L. Culberson, 03.1955, det. W.L. Culberson. A. VEZDA: LICHENES SELECTI EXSICCATI NR. 1967

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (34870)
2002/02/17
center of thallus with isidia

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (9123)
2001/11/25
detail of isidia

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (34870)
2002/02/17
peripheral lobes

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (9123)
2001/11/25

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

Felix Schumm - CC BY-SA 4.0

[19051], Australia, Victoria, Mount Delegate, 8 km south-south-west of Delegate (NSW), 37°07' S, 148°54' E, 1300 m , growing on dead wood in Eucalyptus pauciflora dominated woodland. Leg. J.A. Elix (20019) & H. Streimann, 10.04.1985.

Felix Schumm - CC BY-SA 4.0

[19051], Australia, Victoria, Mount Delegate, 8 km south-south-west of Delegate (NSW), 37°07' S, 148°54' E, 1300 m , growing on dead wood in Eucalyptus pauciflora dominated woodland. Leg. J.A. Elix (20019) & H. Streimann, 10.04.1985.

Felix Schumm - CC BY-SA 4.0

[19051], Australia, Victoria, Mount Delegate, 8 km south-south-west of Delegate (NSW), 37°07' S, 148°54' E, 1300 m , growing on dead wood in Eucalyptus pauciflora dominated woodland. Leg. J.A. Elix (20019) & H. Streimann, 10.04.1985.

Felix Schumm - CC BY-SA 4.0

: [19051], Australia, Victoria, Mount Delegate, 8 km south-south-west of Delegate (NSW), 37°07' S, 148°54' E, 1300 m , growing on dead wood in Eucalyptus pauciflora dominated woodland. Leg. J.A. Elix (20019) & H. Streimann, 10.04.1985
th: thamnolic acid

Curtis Randall Björk, - CC BY-SA 4.0

Sugarbowl-Grizzly Den Provincial Park, British Columbia, Canada
August 2017
as v. tilesii

Felix Schumm - CC BY-SA 4.0

[20369], U.S.A. Carolina Borealis, Grandville County, Creedmore, ad truncum Pini sp.. Leg. W.L. Culberson, 03.1955, det. W.L. Culberson. A. VEZDA: LICHENES SELECTI EXSICCATI NR. 1967

Felix Schumm - CC BY-SA 4.0

[19051], Australia, Victoria, Mount Delegate, 8 km south-south-west of Delegate (NSW), 37°07' S, 148°54' E, 1300 m , growing on dead wood in Eucalyptus pauciflora dominated woodland. Leg. J.A. Elix (20019) & H. Streimann, 10.04.1985.

Felix Schumm - CC BY-SA 4.0

[20369], U.S.A. Carolina Borealis, Grandville County, Creedmore, ad truncum Pini sp.. Leg. W.L. Culberson, 03.1955, det. W.L. Culberson. A. VEZDA: LICHENES SELECTI EXSICCATI NR. 1967

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

Courtesy: Anita Stridvall

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

Courtesy: Anita Stridvall

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

Courtesy: Anita Stridvall

Pier Luigi Nimis - CC BY-SA 4.0

TSB 38801

P.L. Nimis CC BY-SA 4.0

TSB 37321

P.L. Nimis CC BY-SA 4.0

TSB 37321

P.L. Nimis CC BY-SA 4.0

TSB 37322

P.L. Nimis CC BY-SA 4.0

TSB 37322

P.L. Nimis CC BY-SA 4.0

TSB 38801

Pier Luigi Nimis - Department of Life Sciences, University of Trieste - CC BY-SA 4.0

TSB 37321

Pier Luigi Nimis - Department of Life Sciences, University of Trieste - CC BY-SA 4.0

TSB 37321

Pier Luigi Nimis - Department of Life Sciences, University of Trieste - CC BY-SA 4.0

TSB 37321

Pier Luigi Nimis - Department of Life Sciences, University of Trieste - CC BY-SA 4.0

TSB 37322

Pier Luigi Nimis - Department of Life Sciences, University of Trieste - CC BY-SA 4.0

TSB 37322

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=359&lang=en

France, Doubs

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder

Austria: Alps.

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder

Austria: Alps.

Marta González Garcia - Centro de Estudios Micologicos Asturianos

Spain, Salcedo (Quirós-Asturias), 18-IX-2023, sobre varales de madera que cierran prados, leg. & det. M. González.

Marta González Garcia - Centro de Estudios Micologicos Asturianos

Spain, Salcedo (Quirós-Asturias), 18-IX-2023, sobre varales de madera que cierran prados, leg. & det. M. González.

Marta González Garcia - Centro de Estudios Micologicos Asturianos

Spain, Salcedo (Quirós-Asturias), 18-IX-2023, sobre varales de madera que cierran prados, leg. & det. M. González.

Marta González Garcia - Centro de Estudios Micologicos Asturianos

Spain, Salcedo (Quirós-Asturias), 18-IX-2023, sobre varales de madera que cierran prados, leg. & det. M. González.

Marta González Garcia - Centro de Estudios Micologicos Asturianos

Spain, Salcedo (Quirós-Asturias), 18-IX-2023, sobre varales de madera que cierran prados, leg. & det. M. González.

Marta González Garcia - Centro de Estudios Micologicos Asturianos

Spain, Salcedo (Quirós-Asturias), 18-IX-2023, sobre varales de madera que cierran prados, leg. & det. M. González.

Wolfgang von Brackel - CC BY-4.0

Germany, Bavaria, Grafenwöhr

Wolfgang von Brackel - CC BY-4.0

Germany, Bavaria, Neumühlschlag

Bologna

Biome

Pon

Trieste

Trieste