Chaenotheca brachypoda (Ach.) Tibell

Symb. Bot. Upsal., 27, 1: 71, 1987. Basionym: Coniocybe brachypoda Ach. - K. Vetensk.-Akad. Nya Handl., 4: 287, 1816.
Synonyms: Chaenotheca sulphurea (Retz.) Middelb. & Mattsson; Coniocybe furfuracea var. sulphurella (Fr.) Schaer.; Coniocybe griseola Ach.; Coniocybe sulphurea (Retz.) Nyl.; Coniocybe sulphurella (Fr.) Nyl.
Distribution: N - Frl (CLU 4209), Ven (Ravera & al. 2021), TAA (Puntillo & Puntillo 2009), Piem (Puntillo & Puntillo 2009), VA (Puntillo & Puntillo 2018). C - Tosc (Ravera & al. 2018b), Abr (Nascimbene & al. 2021). S - Camp (CLU 16353), Cal (Puntillo 1994, 1996, Puntillo & Puntillo 2009).
Description: Thallus crustose, endosubstratic and poorly visible. Apothecia long-stalked, pin-like. Stalk slender, 0.4-1.4 mm high, densely yellowish green-pruinose except sometimes in the black lowermost part, the inner part of periclinally arranged, medium brown hyphae, the outer part of dark brown, sclerotized hyphae. Capitulum spherical, 0.1-0.2 mm across, yellowish-green-pruinose, with a poorly developed excipulum of periclinally arranged hyphae, continuous with the stalk tissue and often reduced to a small basal collar. Mazaedium well-developed, dark brown, but heavily pruinose; hypothecium dark brown, with a convex upper surface. Asci cylindrical or irregular, formed in chains, dissolving early. Ascospores 1-celled, medium brown, globose to cuboid, 3-4 µm wide, with an irregularly thickened, sparingly cracked wall. Photobiont chlorococcoid, with rectangular cells (Stichococcus). Spot tests: thallus K-, C-, KC-, P-. Chemistry: thallus and pruina of the apothecia with pulvinic and vulpinic acids.
Note: on decorticated stumps of deciduous and coniferous trees, more rarely on bark and siliceous rocks in old humid forests, on faces slightly protected from rain. Reported from both the Alps and the Apennines, but rare. It is included in the Italian red list of epiphytic lichens as “Endangered” (Nascimbene & al. 2013c).
Growth form: Crustose
Substrata: bark and lignum
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
In underhangs rarely wetted by rain

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: very rare
Submediterranean belt: extremely rare
Padanian area: absent
Humid submediterranean belt: extremely rare
Humid mediterranean belt: absent
Dry mediterranean belt: absent

pH of the substrata:

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Solar irradiation:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Predictive model
Herbarium samples
Index Fungorum GBIF


P.L. Nimis CC BY-SA 04
TSB 15132


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



Domenico Puntillo CC BY-SA 4.0



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (15133)
2001/12/05



P.N. Nimis CC BY-SA 4.0
TSB 15132



P.L. Nimis CC BY-SA 04
TSB 15132


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