ITALIC 8.0

Lepraria leuckertiana (Zedda) L. Saag

in Saag & al., Lichenologist, 41: 41, 2009. Basionym: Lecanora leuckertiana Zedda - Nova Hedwigia, 71: 108, 2000.

Synonyms:

Distribution: N - TAA (Nascimbene & al. 2014, 2022, Nascimbene 2014, Nascimbene & Marini 2015, Trindade & al. 2021). C - Sar (Zedda 2000b, 2002, 2002c, Zedda & al. 2001).

Description: Thallus leprose, cottony and powdery to granular, thick, whitish green to grey-green, diffuse or weakly delimited, firmly attached to the substratum, the margins delimited, but not forming true lobes (obscure sublobes sometimes present). Granules soredia-like, abundant, fine to coarse, up to 500 μm in diam., not well separated from each other, without projecting hyphae. Medulla present, well developed, white, forming a cottony layer which is sometimes exposed in patches. Hypothallus absent. Photobiont chlorococcoid, the cells 10-12 µm wide. Spot tests: K-, C-, KC-, P-. Chemistry: usnic acid, zeorin, isousnic acid (traces), triterpenes.

Note: on old trees in humid, but well-lit situations, with optimum in humid Mediterranean forests. The species has been reported also from eastern central Europe, but these records may refer to another lichen (see Bayerovà & Kukwa 2004). It is included in the Italian red list of epiphytic lichens as “Endangered” (Nascimbene & al. 2013c).

Growth form: Leprose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: extremely rare

Humid mediterranean belt: very rare

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

Harrie Sipman – Source http://www.bgbm.fu-berlin.de/sipman/Zschackia/AegeanLichens/CaloplacaAC.htm - As Caloplaca oasis