Caloplaca thamnoblasta Nimis & Poelt

in Vezda, Sched. ad Lich. Rar. Exs., fasc. 6: 1 (n. 51), 1993.
Synonyms:
Distribution: S - Si (Nimis & al. 1994).
Description: Thallus yellow-orange, forming up to 1 cm wide patches (but several thalli often confluent, covering larger surfaces), at first crustose-subsquamulose, with convex, sometimes lobulate squamules/areoles surrounded by a white to ochre prothallus, then minutely subfruticose, with globose to coralloid, 20-50 μm thick, often proliferating, isidia-like outgrowths. Apothecia biatorine/zeorine, yellow-orange, usually sparse, sessile or immersed amongst the granules, at first rounded, then irregular in shape, with a flat to slightly convex, rough disc, and an initially smooth and raised, finally excluded margin. Exciple fan-shaped, irregularly corticate, the medulla containing algae at the base; epithecium orange-brown, K+ red; hymenium colourless, 60-80 μm high; paraphyses 1.5-2 μm thick at mid-level, the apical cells 2-3(-5) μm wide; hypothecium colourless, of conglutinated hyphae. Asci 8-spored, cylindrical-clavate, Teloschistes-type. Ascospores 1-septate, polarilocular, hyaline, ellipsoid, 11-14 x 4-7 μm, the septum 3-4.5 μm thick. Pycnidia immersed, the ostiolar region poorly pigmented. Conidia ovoid, 2-3 x 1-1.5 μm. Photobiont chlorococcoid. Spot tests: thallus and apothecia K+ red, C-, KC-, P-. Chemistry: thallus and apothecia with parietin (major), fallacinal, emodin, teloschistin and parietinic acid (minor), corresponding with chemosyndrome A of Søchting (1997).
Note: On calcareous rocks near the coast; hitherto known only from the type locality (Lampedusa). A very characteristic and easily recognizable species, to be looked for throughout the Mediterranean Region. According to Vondrák (in litt.) it belongs to Haloplaca.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Taxon bound to maritime-coastal situations

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: extremely rare
Dry mediterranean belt: absent


pH of the substrata:

(info)

1

2

3

4

5

Solar irradiation:

(info)

1

2

3

4

5

Aridity:

(info)

1

2

3

4

5

Eutrophication:

(info)

1

2

3

4

5

Poleotolerance:

(info)

0

1

2

3

Altitudinal distribution:

(info)

1

2

3

4

5




Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (18220)
2001/11/19



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (18220)
2001/11/19



Felix Schumm - CC BY-SA 4.0
[19560], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L. Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). ZDA: LICHENES RARIORES EXSICCATI NR. 51, ISOTYPUS



Felix Schumm - CC BY-SA 4.0
[19560], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L. Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). ZDA: LICHENES RARIORES EXSICCATI NR. 51, ISOTYPUS



Felix Schumm - CC BY-SA 4.0
[19560], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L. Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). ZDA: LICHENES RARIORES EXSICCATI NR. 51, ISOTYPUS



Felix Schumm - CC BY-SA 4.0
[19560], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L. Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). ZDA: LICHENES RARIORES EXSICCATI NR. 51, ISOTYPUS


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.


Felix Schumm - CC BY-SA 4.0
[BR5030011725857], Italia, Pelagiae insulae, insula Lampedusa, scopulum Capo Grecale dictum, alt. 30-50 m, ad saxa calcarea. Leg. P.L.Nimis, J. Poelt & A. Vezda, 14.04.1992 (Holotypus GZU). VEZDA: LICH.RAR.EXS. 51, ISOTYPUS.



Felix Schumm; Owner: CC BY-SA 4.0
[TSB_18220], Italy, Isole Pelagie, Lampedusa, Capo Grecale, 30-50 m, on limestone. Leg. P.L. Nimis, J. Poelt & A. Vezda 14.04.1992. VEZDA: LICH. RAR. EXS. NR. 31 – ISOTYPUS



Felix Schumm; Owner: CC BY-SA 4.0
[TSB_18220], Italy, Isole Pelagie, Lampedusa, Capo Grecale, 30-50 m, on limestone. Leg. P.L. Nimis, J. Poelt & A. Vezda 14.04.1992. VEZDA: LICH. RAR. EXS. NR. 31 – ISOTYPUS



Felix Schumm; Owner: CC BY-SA 4.0
[TSB_18220], Italy, Isole Pelagie, Lampedusa, Capo Grecale, 30-50 m, on limestone. Leg. P.L. Nimis, J. Poelt & A. Vezda 14.04.1992. VEZDA: LICH. RAR. EXS. NR. 31 – ISOTYPUS



Felix Schumm; Owner: CC BY-SA 4.0
[TSB_18220], Italy, Isole Pelagie, Lampedusa, Capo Grecale, 30-50 m, on limestone. Leg. P.L. Nimis, J. Poelt & A. Vezda 14.04.1992. VEZDA: LICH. RAR. EXS. NR. 31 – ISOTYPUS



Felix Schumm; Owner: CC BY-SA 4.0
[TSB_18220], Italy, Isole Pelagie, Lampedusa, Capo Grecale, 30-50 m, on limestone. Leg. P.L. Nimis, J. Poelt & A. Vezda 14.04.1992. VEZDA: LICH. RAR. EXS. NR. 31 – ISOTYPUS



Felix Schumm; Owner: CC BY-SA 4.0
[TSB_18220], Italy, Isole Pelagie, Lampedusa, Capo Grecale, 30-50 m, on limestone. Leg. P.L. Nimis, J. Poelt & A. Vezda 14.04.1992. VEZDA: LICH. RAR. EXS. NR. 31 – ISOTYPUS