Endocarpon pallidum Ach.
Lichenogr. Univ., 301, 1810.
Synonyms: Dermatocarpon pallidum (Ach.) Mudd; Verrucaria pallida (Ach.) Nyl.
Description: Thallus squamulose, heteromerous, pale greenish grey to pale brown when dry, green when wet, smooth, dull. Squamules (0.5)1-2(-4) mm broad, 0.2-0.3 μm thick, rounded to irregularly lobed, flattened, smooth, contiguous, usually not imbricate, with an often slightly up-turned margin. Lower surface whitish to pale brown, with a few bundles of hyaline, c. 2.5 μm thick rhizohyphae. Upper cortex pseudoparenchymatous; lower cortex absent; medulla white, of loosely interwoven hyphae. Perithecia frequent, globose to broadly pyriform, without involucrellum, fully immersed, to 0.4 mm diam., the apex concolorous with thallus or darker. Exciple brown to black throughout, c. 30 μm thick hymenium colourless, I+ brown-red, filled with ellipsoid to globose, 3-5 μm wide hymenial algae; hamathecium of 30-40 µm long periphyses, paraphyses absent. Asci 2-spored, clavate to cylindrical-clavate, bitunicate, with a fissitunicate dehiscence, thin-walled, the wall non-amyloid. Ascospores muriform, at first hyaline, then turning brown, ellipsoid, 28-40(-50) x 11-16(-19) μm, the apical spore smaller. Pycnidia black, immersed, inconspicuous. Conidia crescent-shaped, hyaline, 3-5 x 0.8-1 μm. Photobiont chlorococcoid (Diplosphaera), present in both thallus and hymenium. Spot tests: cortex and medulla K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Squamulose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
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: absent
Montane belt: absent
Dry submediterranean belt: rather rare
Humid submediterranean belt: 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
P.L. Nimis CC BY-SA 4.0
TSB 2996
S. Martellos; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli-Venezia Giulia, Trieste, Carso triestino, Val Rosandra; altitude: 250 m..
Herbarium: TSB (7835)
2007/03/08
Undersurface of a squamule
Growth form: Squamulose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
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: absent
Montane belt: absent
Dry submediterranean belt: rather rare
Humid submediterranean belt: 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
P.L. Nimis CC BY-SA 4.0
TSB 2996
