Thelopsis rubella Nyl.

Thelopsis rubella Nyl.

Mém. Soc. Sc. Nat. Cherbourg, 3: 200, 1855.

Synonyms: Pyrenula bayrhofferi (Körb.) Hepp; Sagedia rubella (Nyl.) Jatta

Distribution: N - VG (Tretiach & Carvalho 1995, Carvalho 1997), Frl (Tretiach & Carvalho 1995), Lomb, Lig (Giordani & Incerti 2008, Giordani & al. 2009). C - Tosc, Marc (Nimis & Tretiach 1999), Umb (Ravera 1998, Ravera & al. 2006), Laz (Ravera 2008), Sar. S - Cal (Puntillo 1996), Si (CLU 10346)..

Description: Thallus crustose, episubstratic but very thin, forming irregular, poorly delimited, 1(-2) cm wide patches, continuous to slightly cracked, pale grey to pale brown, sometimes with a greenish tinge. Perithecia 0.3-0.6 mm across, pale pink brown to red-brown, tending to become darker with age, of a lighter colour around the ostiole, half-immersed in thallus, often surrounded at base by a thalline rim. Exciple hyphal, of intertwined hyphae with thick gelatinized walls, colourless within, brown in outer part, the innermost layer of thin-walled hyphae; periphyses simple or sparingly branched, 4-5-celled; hymenial gel non-amyloid. Asci 100-150-spored, cylindrical, tapering towards the apex, the wall thin, 1+ light blue, without a tholus. Ascospores (1-)3-septate, with rounded ends, hyaline, ellipsoid, 12-18 x 4-8 μm, with a very thin, often inapparent perispore. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a mild-temperate species found on old deciduous trees (e.g. Fagus, Quercus), especially near the base of the boles, in areas with high rainfall, mainly Tyrrhenian in Italy. It is included in the Italian red list of epiphytic lichens under the “Least Concern” category (Nascimbene & al. 2013c).

Growth form: Crustose

Substrata: bark

Photobiont: 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: absent

Submediterranean belt: extremely rare

Padanian area: absent

Humid submediterranean belt: very rare

Humid mediterranean belt: extremely 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

Sonia Ravera

Italy, Toscana

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

Paolo Giordani

Paolo Giordani

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (3240)
2001/12/03

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, Crozon, Lesteven

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, Kerglintin

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, Kerglintin

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, Kerglintin

Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, Kerglintin

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, St. Hernot

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, St. Hernot

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, St. Hernot

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, St. Hernot

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, St. Hernot

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, St. Hernot

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, St. Hernot

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, St. Hernot

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, St. Hernot

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=1086&lang=en

France, St. Hernot

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