ITALIC 8.0

Porina alpina (Bagl. & Carestia) Lettau

Hedwigia, 52: 105, 1912. Basionym: Segestrella alpina Bagl. & Carestia - Comm. Soc. Critt. Ital. 2, 1: 84, 1864.

Synonyms: Sagedia alpina (Bagl. & Carestia) Jatta; Verrucaria alpina (Bagl. & Carestia) Stizenb.

Distribution: N - Piem.

Description: Thallus crustose, thinly episubstratic, whitish grey to bluish grey, subleprose when dry, subgelatinous when wet. Perithecia semi-immersed in the thallus, small, brown to brown-black, scattered to sometimes crowded, flattened near the ostiole. Involucrellum dimidiate; exciple colourless; paraphyses scarce, simple or sparingly branched, thread-like and flexuose. Asci (6-)8-spored subcylindrical. Ascospores 3-7-septate, hyaline, fusiform with acute ends, 29-37 x 7-9 µm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-. Chemistry: thallus without lichen substances.

Note: a long-forgotten species, only known from the type collection, on calciferous soil in the alpine belt; the type material (probably in MOD) is worthy of further study.

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: Trentepohlia

Reproductive strategy: mainly sexual

Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: extremely rare

Subalpine belt: extremely rare

Oromediterranean belt: absent

Montane belt: absent

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

Index Fungorum GBIF

Baglietto & Carestia, Anacrisi dei Licheni della Valsesia. Comm. Soc. Critt. Ital., 2, 1879, tav. IV, nr. 60