ITALIC 7.0

Dirina massiliensis f. aponina (A. Massal.) Tehler

Lichenologist, 20: 398, 1988. Basionym: Pyrenotea aponina A. Massal., Ric. Auton. Lich. Crost.: 151, fig. 295, 1852 -

Synonyms: Lecanactis aponina (A. Massal.) Arnold

Distribution: N - VG (Nimis 1993, as D. cretacea). C - Mol (Nimis & Tretiach 1999)

Description: Thallus crustose, episubstratic, corticate, effuse, smooth to cracked or slightly areolate, 0.2-3.5 mm thick, creamy white to white-grey, rarely dark grey or grey-brown, pruinose, often delimited by a black to almost white prothallus, esorediate. Cortex of mainly anticlinally arranged hyphae, masked by many crystals of oxalates; medulla thick, white, chalk-like, filled with crystals. Apothecia absent. Pycnidia abundant, black, immersed or slightly projecting. Conidia thread-like, sickle-shaped, 12-16 x c. 1 µm. Photobiont trentepohlioid. Spot tests: thallus K-, C+ red, KC+ red, P-, UV-; medulla and soralia K-, C-, KC-, P-, UV+ yellowish. Chemistry: erythrin, lecanoric acid, unidentified substances.

Note: a sterile, pycnidiate and esorediate form, which according to Tehler (2013) does not deserve a separation from the typical or the sorediate forms.

Growth form: Crustose

Substrata: rocks

Photobiont: Trentepohlia

Reproductive strategy: mainly asexual, by conidia and thalloconidia

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: extremely rare

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: very rare

Dry mediterranean belt: very rare

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

Pier Luigi Nimis - CC BY-SA 4.0

TSB 25249

Pier Luigi Nimis - CC BY-SA 4.0

TSB 25249

Pier Luigi Nimis - CC BY-SA 4.0

TSB 25249