ITALIC 8.0

Chaenothecopsis epithallina Tibell

Symb. Bot. Upsal., 21, 2: 116, 1975.

Synonyms:

Distribution: N - Lomb (CLU 2040). S - Cal (Puntillo 1994, 1996, Puntillo & Puntillo 2009, Brackel & Puntillo 2016, Brackel 2016).

Description: Thallus not evident, not lichenized. Apothecia long-stalked, 0.6-1 mm high, pin-like, developing on the thalli of Chaenotheca trichialis. Stalk 0.05-0.07 mm thick, black, epruinose, 0.08-0.1 mm thick, consisting of an outer, 6-9 µm thick layer of strongly sclerotized, dark brown hyphae, and an inner part of iregularly interwoven, colourless and swollen hyphae. Capitulum lenticular 0.3-0.4 mm across, the outer part faintly bluish white-pruinose; mazaedium not present. Exciple dark brown, 20-50 µm thick (thickest at the base), 3-layered, the innermost and median layer of periclinally arranged hyphae, the outer layer of more or less isodiametrical cells with sclerotized walls. Epithecium brown, poorly evident; hypothecium aeruginose green, 60-80 µm high. Asci 8-spored, cylindrical, with a thickened apex penetrated by a narrow canal, formed singly, persisting until the spores are mature. Ascospores 1-septate, brown, ellipsoid, 6-8 x 2-2.5 µm, with a smooth wall, the septum clearly pigmented, at least as dark as the wall. Photobiont absent. Spot tests: all parts of ascocarps K-, C-, KC-, P-, N-. Chemistry: without lichen substances.

Note: parasitic or parasymbiontic in the thalli of Chaenotheca trichialis, mainly on old conifers, much more rarely on lignum and deciduous trees, mostly in upland areas; probably occurring in the Alps, but very much overlooked. The record from Sicily by Grillo (1996), not validated by Puntillo & Puntillo (2009) is not accepted here.

Growth form: Lichenicolous fungus

Substrata: bark

Reproductive strategy: mainly sexual

In underhangs rarely wetted by rain

paras Chaenotheca trichialis

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: very rare

Oromediterranean belt: absent

Montane belt: very rare

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: absent

Dry mediterranean belt: absent

pH of the substrata:

1

2

3

4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

2

3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

1

2

3

4

5

6

(info)

Predictive model

Herbarium samples

Index Fungorum GBIF

Eric Peterson – source: https://www.flickr.com/photos/116444714@N04/23601434175/ - CC BY-NC-SA 2.0