Cetraria oakesiana Tuck.
Boston J. Nat. Hist., 3: 445, 1841.
Synonyms: Allocetraria oakesiana (Tuck.) Randlane & A. Thell; Cetraria bavarica Kremp.; Platysma oakesianum (Tuck.) Nyl.; Tuckermannopsis oakesiana (Tuck.) Hale; Usnocetraria oakesiana (Tuck.) M.J. Lai & J.C. Wei
Description: Thallus foliose, dorsiventral, rather closely adnate, forming very irregular patches. Lobes 4-10 mm wide, elongated, usually concave, with raised, white-sorediate margins. Upper surface yellowish green, smooth and somewhat glossy; lower surface tan to pale brown, with scattered, simple or forked, pale brown rhizines, without pseudocyphellae. Upper and lower cortex paraplectenchymatous, rather thin, with thick-walled cells; medulla white. Apothecia extremely rare (not found in Italian material), zeorine, usually submarginal, up to 7 mm across, with a pale brown disc. Asci 8-spored, narrowly clavate, with a small axial body and a distinct, K/I+ blue ring-structure in the rather large tholus, approaching the Lecanora-type. Ascospores 1-celled, hyaline, subglobose, c. 5 μm wide. Pycnidia rare, black, marginal, projecting. Conidia sublageniform, 7-12 x 0.8-1.5(-2) μm. Photobiont chlorococcoid. Spot tests: upper cortex and medulla K-, C-, KC-, P-. Chemistry: upper cortex with usnic acid; medulla with caperatic, lichesterinic and protolichesterinic acids.
Growth form: Foliose, broad lobed
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Subcontinental: restricted to areas with a dry-subcontinental climate (e.g. dry Alpine valleys, parts of Mediterranean Italy)
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: extremely rare
Montane belt: extremely 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
Mark Rahill CC BY-SA 4.0
USA
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Udine, Passo del Pura, Ampezzo Carnico, 1400 m
09.09.2016
Einar Timdal - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC
Mark Rahill - CC BY-SA 4.0
USA
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (9727)
2001/12/05
P. L. Nimis - CC BY-SA 4.0
TSB 43754
P. L. Nimis - CC BY-SA 4.0
TSB 43754
Growth form: Foliose, broad lobed
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Subcontinental: restricted to areas with a dry-subcontinental climate (e.g. dry Alpine valleys, parts of Mediterranean Italy)
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: extremely rare
Montane belt: extremely 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
Loading data...
Occurrence data
Predictive map
Mark Rahill CC BY-SA 4.0
USA
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Udine, Passo del Pura, Ampezzo Carnico, 1400 m
09.09.2016
Einar Timdal - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC
Mark Rahill - CC BY-SA 4.0
USA
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (9727)
2001/12/05
P. L. Nimis - CC BY-SA 4.0
TSB 43754
