ITALIC 7.0

Bibbya vermifera (Nyl.) Kistenich, Timdal, Bendiksby & S.Ekman

Taxon, 67: 892, 2018.. Basionym: Lecidea vermifera Nyl. - Bot. Not.: 98, 1853.

Synonyms: Bacidia hegetschweileri auct. non (Hepp) Vain.; Bacidia vermifera (Nyl.) Th. Fr.; Biatora atrosanguinea f. hegetschweileri auct. non Hepp; Bilimbia lecideoides (Hazsl. ex Körb.) Th. Fr.; Scoliciosporum vermiferum (Nyl.) Arnold

Distribution: N - TAA (Nascimbene & al. 2007b), Lomb, Piem (Isocrono & al. 2004).

Description: Thallus crustose, continuous, rimose-areolate, or warted-areolate, white to grey or brown-grey, sometimes poorly evident. Apothecia lecideine, black to rarely dark brown-black, 0.2-0.5 mm across, with a persistently flat to slightly convex, epruinose disc, and a distinct, persistent or rarely finally excluded, concolorous proper margin. Proper exciple 26-45 μm wide laterally, without crystals, the outer rim black-brown or dark red-brown, sometimes paler downwards, without a layer of enlarged cells, the medullary part colourless or very pale brown; epithecium purple-brown to dark brown, scarcely differentiated from hymenium, K+ intensifying purple; hymenium (35-)45-50(-70) μm high, colourless except for occasional vertical brown streaks; paraphyses mostly simple, 1.-1.5(-2) μm thick at mid-level, the apical cells clavate, 3.5-4(-6) μm wide; hypothecium colourless or very pale brown; all pigmented parts of apothecia K+ purplish and N+ orange-red. Asci 8-spored, clavate, the apical dome K/I+ dark blue with a pale, conical-pointed apical cushion (axial mass), the wall I-, but the thin outer gel I+ blue, Bacidia-type. Ascospores 3-7-septate, hyaline, bacilliform or clavate, usually strongly curved or sigmoid, rarely almost straight, coiled in the asci, (14-)16-35(-40) x 2-3(-4) μm. Pycnidia half-immersed, black, the wall K+ brown-purple. Conidia 1-celled, hyaline, of two types: a) ellipsoid or short-bacilliform, 2.8-3.6 x 1.2-1.6 μm, b) bacilliform, straight or slightly curved, 6-9 x 0.5-0.8 μm. Photobiont chlorococcoid, the cells 5-14 μm in diam. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: thallus without lichen substances; apothecia and pycnidial walls with the Laurocerasi-brown pigment.

Note: on the bark of broad-leaved trees in rather humid situations, more rarely on lignum. For nomenclatural problems see Ekman (1996). It was included as “Regionally Extinct” in the Italian red list of epiphytic lichens (Nascimbene & al. 2013c).

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: very rare

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

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

Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php (Courtesy: Anita Stridvall)

E. Pittao; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (28078)
2008.03.31

E. Pittao; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (28078)
2008.03.31

E. Pittao; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (28078)
2008.03.31

Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/

Courtesy: Anita Stridvall

Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/

Courtesy: Anita Stridvall

Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/

Courtesy: Anita Stridvall

Source: https://fungi.myspecies.info/all-fungi/biatora-britannica - Photo uploaded by Mark Powell - CC BY NC

Bibbya vermifera, part of apothecial section, mounted in K.

Source: https://fungi.myspecies.info/all-fungi/biatora-britannica - Photo uploaded by Mark Powell - CC BY NC

Bibbya vermifera, hymenium mounted in K, showing ascospores spiralled in the asci.