ITALIC 8.0

Scoliciosporum perpusillum Körb.

J. Lahm ex Körb., Parerga Lichenol.: 241, 1861.

Synonyms: Bacidia perpusilla (Körb.) Th. Fr.

Distribution: N - Piem (Matteucci & al. 2013). C - Laz (TSB 4208). S - Camp (Aprile & al. 2003b), Cal (Puntillo 1996).

Description: Thallus crustose, thinly episubstratic, granular, yellowish green. Apothecia biatorine, 0.1-0.3 mm across, with a soon convex, red-brown to black disc, without an evident proper margin. Proper exciple thin, olive brown in section, without crystals, of radiating, branched and anastomosing hyphae; epithecium olive to brownish; hymenium colourless, I+ blue; paraphyses strongly branched and anastomosing up to the upper part, immersed in a gelatinous matrix and resembling excipular hyphae, the apical cells mostly slightly clavate; hypothecium colourless to flesh-coloured. Asci 8-spored, broadly clavate, surrounded by a gelatinous, amyloid sheet, with a well-developed, amyloid tholus containing a widely cylindrical axial body and a poorly developed, bluntly conical ocular chamber, more or less Lecanora-type. Ascospores 3-7-septate, with rather indistinct septa, hyaline, acicular, curved or slightly spirally twisted, 15-20 x 1.5-2 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a mild-temperate, probably western species, generally found on acid bark, especially of conifers, but also on needles of Abies in damp montane forests. It is included in the Italian red list of epiphytic lichens as “Vulnerable” (Nascimbene & al. 2013c).

Growth form: Crustose

Substrata: bark and leaves

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

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

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4

5

(info)

Solar irradiation:

1

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4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

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3

4

5

(info)

Poleotolerance:

0

1

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3

(info)

Altitudinal distribution:

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6

(info)

Predictive model

Herbarium samples

University of Wisconsin - Madison (WIS). CC BY NC

Determiner: K. Kalb, A. Vĕzda (s.d.) Type Status: Holotype Collector: O. Degener 1977-06-30 United States, Hawaii, Mauna Kea, Hawaii. Road to Hale Pohaku Latitude/Longitude: 19.82061 -155.46813 +-20449m. WGS84 2134 m. On endemic Sophora