Thelidium bubulcae (A. Massal.) Arnold

Verh. zool.-bot. Ges. Wien, 18: 706, 1868. Basionym: Lithocia bubulcae A. Massal. - Framm. Lichenogr.: 23, 1855.
Synonyms: Leiophloea bubulcae (A. Massal.) Trevis.; Sagedia bubulcae (A. Massal.) Garov.
Distribution: N - Ven (Lazzarin 200b)
Description: Thallus crustose, episubstratic, rimose-areolate, dirty white to very pale grey-brown, often delimited by a black prothallus. Perithecia black, 0.2-0.4 mm across, largely immersed in the thallus. Involucrellum limited to the upper third of the perithecium, slightly diverging from exciple in the lowermost part; exciple dark throughout; hamathecium of periphyses and periphysoids, interascal filaments absent; hymenial gel I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, ellipsoid to clavate, I-, fissitunicate, the wall thickened above, with an ocular chamber, dehiscent by extrusion of a delicate rostrum. Ascospores (0-)1-septate, hyaline, ellipsoid with rounded ends, (17-)20-30 x 9-12 μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: often considered as a synonym of T. zwackhii, this poorly known calcicolous species is accepted by Roux & coll. (2014).
Growth form: Crustose
Substrata: rocks, soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Pioneer species
Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: very rare
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: 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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Predictive model
Herbarium samples


P.L. Nimis CC BY-SA 4.0
TSB 10547


Source: Zschacke, H. (1934) Epigloeaceae, Verrucariaceae und Dermatocarpaceae. In: Dr. L. Rabenhorst‘s Kryptogamen-Flora, Band 9, Abt. 1, Teil 1. Akademische Verlagsgesellschaft, Leipzig, 695 pp. - Public Domain



Pier Luigi Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (10547)
identification not certain