Umbilicaria subglabra (Nyl.) Harm.

Lich. France, 4: 707, 1910. Basionym: Gyrophora subglabra Nyl. - Lich. Envir. Paris: 135, 1896.
Synonyms: Agyrophora subglabra (Nyl.) M. Choisy; Umbilicaria subglabra var. schmidtii Frey?
Description: Thallus foliose-umbilicate, heteromerous, dorsiventral, monophyllous, but ften deeply dissected appearing polyphyllous, more or less circular in outline, rigid, often with ragged margins, 1-3(-6) cm wide, 0.1-0.2 mm thick, attached by a central holdfast. Upper surface pale to dark grey, dull, smooth to minutely roughened, with a white necral layer centrally, and a few short folds or ridges or numerous fine striae radiating from the umbo. Lower surface smooth, dull, grey or patchily sooty black where covered with dark brown, simple or rarely 1-septate, spherical, delicately roughened, c. 7-7.5 µm wide thalloconidia. Upper cortex 10-20 µm thick; algal layer discontinuous; medulla white, 45-80 µm thick, well differentiated from lower cortex; lower cortex scleroplectenchymatous, 14–24 µm, thick. Apothecia rare, black, leiodisc. Epithecium black-brown; hymenium colourless; paraphyses simple or sparingly branched, with enlarged apical cells; hypothecium brown. Asci 8-spored, elongate-clavate, thick-walled, with an amyloid apical dome, Umbilicaria-type. Ascospores 1-celled, hyaline, narrowly ellipsoid, 10-20 x 3-7 µm. Photobiont chlorococcoid. Spot tests: medulla K-, C+ red, KC+ red, P-. Chemistry: medulla with gyrophoric acid, plus small amounts of lecanoric and umbilicaric acids.
Growth form: Foliose, umbilicate
Substrata: rocks
Photobiont: green algae other than Trentepohlia

Commonnes-rarity: (info)

Alpine belt: rare
Subalpine belt: rather rare
Montane belt: extremely rare
Dry submediterranean belt: absent
Humid submediterranean belt: absent
Padanian area: 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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Rarity

absent
extremely rare
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common
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Occurrence data
Predictive map

Felix Schumm – CC BY-SA 4.0
[18945], Australia, Australian Capital Territory, Sentry Box, Scabby Range, 60 km south-west of Canberra, 35°49' S, 148° 54' E, 1670 m, on exposed rocks on summit. Leg. J.A. Curnow, H. Lepp, M. Brenan, 22.12. 1085. LICH. AUSTRALAS. EXS. 126


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34461)
2002/01/15
upper surface, thallus center with radial ridges


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34461)
2002/01/15
thalloconidia on the lower surface


Felix Schumm – CC BY-SA 4.0
[18945], Australia, Australian Capital Territory, Sentry Box, Scabby Range, 60 km south-west of Canberra, 35°49' S, 148° 54' E, 1670 m, on exposed rocks on summit. Leg. J.A. Curnow, H. Lepp, M. Brenan, 22.12. 1085. LICH. AUSTRALAS. EXS. 126


Felix Schumm – CC BY-SA 4.0
[18945], Australia, Australian Capital Territory, Sentry Box, Scabby Range, 60 km south-west of Canberra, 35°49' S, 148° 54' E, 1670 m, on exposed rocks on summit. Leg. J.A. Curnow, H. Lepp, M. Brenan, 22.12. 1085. LICH. AUSTRALAS. EXS. 126


Felix Schumm – CC BY-SA 4.0
[18945], Australia, Australian Capital Territory, Sentry Box, Scabby Range, 60 km south-west of Canberra, 35°49' S, 148° 54' E, 1670 m, on exposed rocks on summit. Leg. J.A. Curnow, H. Lepp, M. Brenan, 22.12. 1085. LICH. AUSTRALAS. EXS. 126


Felix Schumm – CC BY-SA 4.0
[18945], Australia, Australian Capital Territory, Sentry Box, Scabby Range, 60 km south-west of Canberra, 35°49' S, 148° 54' E, 1670 m, on exposed rocks on summit. Leg. J.A. Curnow, H. Lepp, M. Brenan, 22.12. 1085. LICH. AUSTRALAS. EXS. 126


Felix Schumm – CC BY-SA 4.0
[18945], Australia, Australian Capital Territory, Sentry Box, Scabby Range, 60 km south-west of Canberra, 35°49' S, 148° 54' E, 1670 m, on exposed rocks on summit. Leg. J.A. Curnow, H. Lepp, M. Brenan, 22.12. 1085. LICH. AUSTRALAS. EXS. 126


Felix Schumm – CC BY-SA 4.0
[18945], Australia, Australian Capital Territory, Sentry Box, Scabby Range, 60 km south-west of Canberra, 35°49' S, 148° 54' E, 1670 m, on exposed rocks on summit. Leg. J.A. Curnow, H. Lepp, M. Brenan, 22.12. 1085. LICH. AUSTRALAS. EXS. 126


Felix Schumm - CC BY-SA 4.0
[18945], Australia, Australian Capital Territory, Sentry Box, Scabby Range, 60 km south-west of Canberra, 35°49' S, 148° 54' E, 1670 m, on exposed rocks on summit. Leg. J.A. Curnow, H. Lepp, M. Brenan, 22.12. 1085. LICH. AUSTRALAS. EXS. 126


P.L. Nimis CC BY-SA 04
TSB 42320


P.L. Nimis CC BY-SA 04
TSB 42320


Felix Schumm - CC BY 4.0
[VZ1331], Jugoslavia. Macedonia. Bitola, montes Baba, regio montis Pelister, in rupibus Jorgov kamen dictis, 1800 m. Ad saxa cilicea schistosa. Leg. A. V zda, 12.12.1975. EX A. V ZDA: LICHENES SELECTI EXSICCATI NR. 1331.


Felix Schumm - CC BY 4.0
[VZ1331], Jugoslavia. Macedonia. Bitola, montes Baba, regio montis Pelister, in rupibus Jorgov kamen dictis, 1800 m. Ad saxa cilicea schistosa. Leg. A. V zda, 12.12.1975. EX A. V ZDA: LICHENES SELECTI EXSICCATI NR. 1331.


Felix Schumm - CC BY 4.0
[VZ1331], Jugoslavia. Macedonia. Bitola, montes Baba, regio montis Pelister, in rupibus Jorgov kamen dictis, 1800 m. Ad saxa cilicea schistosa. Leg. A. V zda, 12.12.1975. EX A. V ZDA: LICHENES SELECTI EXSICCATI NR. 1331.


Felix Schumm - CC BY 4.0
[VZ1415], U. R. S. S. Armenia. Caucasus Minor, iugum montium Sevanskij chrebet dictum, distr. Krasnoselsk, supra lacum Sevan, prope pagum avagjukh, 2500 m. Ad saxa silicea. Leg. A. V zda, 24.05.1976. EX A. V ZDA: LICHENES SELECTI EXSICCATI NR. 1415.


Felix Schumm - CC BY 4.0
[VZ1415], U. R. S. S. Armenia. Caucasus Minor, iugum montium Sevanskij chrebet dictum, distr. Krasnoselsk, supra lacum Sevan, prope pagum avagjukh, 2500 m. Ad saxa silicea. Leg. A. V zda, 24.05.1976. EX A. V ZDA: LICHENES SELECTI EXSICCATI NR. 1415.


Frey E. 1933. Cladoniaceae (unter Ausschluß ded Gattung Cladonia) und Umbilicariaceae. In: Rabenhrst’s Kryptogamenflora von Deutschland, Österreich und der Schweiz. 15: 1-208.