Chaenothecopsis nana Tibell

Publ. Herb. Univ. Uppsala, 4: 4, 1979.
Synonyms:
Distribution: C - Sar (Zedda & Sipman 2001, Puntillo & Puntillo 2009, Brackel 2016).
Description: Thallus not evident, not lichenized. Apothecia stalked, pin-like, 0.4-0.6 mm high. Stalk black, 0.04-0.06 mm thick, of periclinally arranged hyphae, pale in central part, brownish to greenish brown in outer part. Capitulum broadly obovoid or lenticular, 0.15-0.25 mm across. Excipulum poorly developed in mature ascomata, of brown, periclinally arranged hyphae. Epithecium reddish brown; mazaedium not present; hypothecium pale green to brownish. Asci 8-spored, 25-35 µm long, cylindrical, with a thickened apex penetrated by a narrow canal, formed singly, persisting until the spores are mature, the spores obliquely arranged in semi-mature asci, periclinally arranged in mature asci. Ascospores 1-celled, brown, fusiform, 6-7 x 2.5-3.5 µm, with an areolate ornamentation. Photobiont absent. Spot tests: ascocarps K-, C-, KC-, P-, N-. Chemistry: without lichen substances.
Note: a mainly boreal-montane species occurring on bark and lignum of coniferous trees in humid-shaded situations.
Growth form: Fungus
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: extremely rare
Montane belt: extremely rare
Submediterranean belt: absent
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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Author: André Aptroot. Source: http://www.tropicallichens.net/ CC BY-SA-NC