ITALIC 7.0

Lempholemma elveloideum (Ach.) Zahlbr.

Cat. Lich. Univ., 3: 21, 1924. Basionym: Collema elveloideum Ach. - Lichenogr. Univ.: 641, 1810.

Synonyms: Arnoldia cyathodes A. Massal.; Collema cyathodes (A. Massal.) Nyl.; Physma cyathodes (A. Massal.) Jatta; Plectopsora cyathodes (A. Massal.) A. Massal.; Plectopsora elveloidea (Ach.) Zanfr.

Distribution: N - Ven (Lazzarin 2000), Lomb (S- F145122), Piem (Isocrono & al. 2004). C - Tosc.

Description: Thallus squamulose to subfoliose, 3-8(-10) mm wide, umbilicate-monophyllous, firmly attached, homoiomerous, gelatinous when wet, black, sometimes grey-pruinose in central part, with a central depression and down-turned margins, attached by a central holdfast. Apothecia rather rare, laminal, immersed, with an initially pore-like, then slightly expanded and urceolate disc and a thick thalline margin. Proper exciple very thin, of parallel hyphae; epithecium brownish; hymenium and hypothecium colourless, K/I+ blue; paraphyses mostly simple, coherent, not apically thickened; hypothecium colourless. Asci 8-spored, prototunicate, cylindrical, without a distinct apical apparatus. Ascospores 1-celled, hyaline, narrowly ellipsoid to fusiform, 15-27 x 7-10 μm. Photobiont cyanobacterial (Nostoc, in chains). Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a mainly temperate lichen found on steeply inclined faces of calcareous rocks, in seepage tracks, often with other cyanobacterial lichens, certainly much overlooked throughout Italy.

Growth form: Foliose, umbilicate

Substrata: rocks

Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)

Reproductive strategy: mainly sexual

On otherwise dry surfaces with short periods of water seepage after rain

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: extremely rare

Submediterranean belt: very rare

Padanian area: absent

Humid submediterranean belt: rare

Humid mediterranean belt: 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

P.L. Nimis CC BY-SA 04

TSB 24593

P.L. Nimis CC BY-SA 04

TSB 24593

Pier Luigi Nimis - CC BY-SA 4.0

TSB 6854

Pier Luigi Nimis - CC BY-SA 4.0

TSB 6854

Pier Luigi Nimis - CC BY-SA 4.0

TSB 6854

Pier Luigi Nimis - CC BY-SA 4.0

TSB 6854

Pier Luigi Nimis - CC BY-SA 4.0

TSB 6854

Pier Luigi Nimis - CC BY-SA 4.0

TSB 6854

Pier Luigi Nimis - CC BY-SA 4.0

TSB 6854

Pier Luigi Nimis - CC BY-SA 4.0

TSB 6854

Pier Luigi Nimis - CC BY-SA 4.0

TSB 6854

LITERATURE

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