Acarospora hilaris (Nyl.) Hue
Nouv. Arch. Mus. Hist. Nat., sér. 5 1: 113, 1909. Basionym: Lecanora hilaris Dufour ex Nyl. - Not. Sallsk. Fauna Fl. Fenn. Förh., 5: 177, 1861.
Synonyms: Placodium chlorophanum var. hilare (Dufour) Boistel
Distribution: C - Tosc (Tretiach 1993), Sar (Tretiach 1993). S - Cal (Puntillo 1996), Si (Nimis & al. 1996b, Grillo & Caniglia 2004).
Description: Thallus crustose-placodioid, episubstratic, bright lemon yellow, slightly glossy, epruinose, forming orbicular to irregular, often confluent rosettes covering wide surfaces. Central parts of thallus of contiguous, angular, flat to slightly convex areoles; marginal lobes radiating, flat or weakly convex, 1-2(-4) x 0.3-0.6(-1) mm. Medulla white; algal layer continuous. Apothecia lecanorine, immersed in the areoles (1-3 per areole), with a punctiform, dark brown disc and a poorly evident thalline margin. Epithecium brownish; hymenium colourless, 85-100 µm high; paraphyses 1.5-2 µm thick at base, the apical cells hardly swollen; hypothecium colourless. Asci 100-200-spored, broadly ellipsoid, the apical dome K/I-. Ascospores 1-celled, hyaline, ellipsoid, 3-6 x c. 2 µm. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-, the cortex UV+ orange. Chemistry: cortex with rhizocarpic acid, rarely with epanorin. Note: a xeric subtropical species found on vertical, often rain-sheltered faces of hard siliceous rocks, restricted to the driest parts of Mediterranean Italy. Chemically heterogeneous (epanorin or rhizocarpic acid).
Growth form: Crustose placodiomorph
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
In underhangs rarely wetted by rain
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: very rare
Predictive model
Herbarium samples
Felix Schumm - CC BY-SA 4.0
[VZR21], Italia, Sicilia: Pollina urbs, loco "Final" dicto, 80 m. Ad saxa
granitica. Leg. et det. D. Puntillo, 30.03.1991. Ex A. Vezda: Lichenes
Rariores Exsiccati Nr. 21.
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (20400)
2001/12/22
Domenico Puntillo; Owner: Domenico Puntillo
Italy, Herb. Puntillo 12968
Felix Schumm - CC BY-SA 4.0
[VZR21], Italia, Sicilia: Pollina urbs, loco "Final" dicto, 80 m. Ad saxa
granitica. Leg. et det. D. Puntillo, 30.03.1991. Ex A. Vezda: Lichenes
Rariores Exsiccati Nr. 21.
Felix Schumm - CC BY-SA 4.0
[VZR21], Italia, Sicilia: Pollina urbs, loco "Final" dicto, 80 m. Ad saxa
granitica. Leg. et det. D. Puntillo, 30.03.1991. Ex A. Vezda: Lichenes
Rariores Exsiccati Nr. 21.
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (20400)
2001/11/20
Felix Schumm - CC BY-SA 4.0
[VZR21], Italia, Sicilia: Pollina urbs, loco "Final" dicto, 80 m. Ad saxa
granitica. Leg. et det. D. Puntillo, 30.03.1991. Ex A. Vezda: Lichenes
Rariores Exsiccati Nr. 21.
Felix Schumm - CC BY-SA 4.0
[VZ2379], Italia. Sardinia. Prov. Cagliari: reservatum naturae Monte
Arcosu, in valle rivi 8 km ad orientem a domo foretali Casa Pedu
Melis, 1800 m. Ad saxa silicea, Leg. P. L. Nimis, C. Roux. M. Tretiach
& A. Vezda. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 2379.
Felix Schumm - CC BY-SA 4.0
[VZ2379], Italia. Sardinia. Prov. Cagliari: reservatum naturae Monte
Arcosu, in valle rivi 8 km ad orientem a domo foretali Casa Pedu
Melis, 1800 m. Ad saxa silicea, Leg. P. L. Nimis, C. Roux. M. Tretiach
& A. Vezda. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 2379.
Felix Schumm - CC BY-SA 4.0
[VZ1902], Hispania.Prov. Zaragoza: In faucibus Jalón, 5 km ad
septentriones et occidentem ab Embid de la Ribera, 450 m. Ad saxa
quarzitica. Leg. J.T. Corbin & A. Vezda, 24.05.1983. - Ex A. VEZDA:
LICHENES SELECTI EXSICCATI NR. 1902.
Felix Schumm - CC BY-SA 4.0
[VZ1902], Hispania.Prov. Zaragoza: In faucibus Jalón, 5 km ad
septentriones et occidentem ab Embid de la Ribera, 450 m. Ad saxa
quarzitica. Leg. J.T. Corbin & A. Vezda, 24.05.1983. - Ex A. VEZDA:
LICHENES SELECTI EXSICCATI NR. 1902.
Felix Schumm - CC BY-SA 4.0
[VZ1186], Gallia, Var: Hyéres, Le Fenouillet, 250 m. Ad saxa schistosa
et quartzitica. Leg. Y. Rondon, 29.3.1973. Ex A. VEZDA: LICHENES
SELECTI EXSICCATI NR. 1186.
Felix Schumm - CC BY-SA 4.0
[VZ1186], Gallia, Var: Hyéres, Le Fenouillet, 250 m. Ad saxa schistosa
et quartzitica. Leg. Y. Rondon, 29.3.1973. Ex A. VEZDA: LICHENES
SELECTI EXSICCATI NR. 1186.
Growth form: Crustose placodiomorph
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
In underhangs rarely wetted by rain
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: very rare
Predictive model
| Herbarium samples |
DOLICHENS
Felix Schumm - CC BY-SA 4.0
[VZR21], Italia, Sicilia: Pollina urbs, loco "Final" dicto, 80 m. Ad saxa granitica. Leg. et det. D. Puntillo, 30.03.1991. Ex A. Vezda: Lichenes Rariores Exsiccati Nr. 21.
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (20400)
2001/12/22
Domenico Puntillo; Owner: Domenico Puntillo
Italy, Herb. Puntillo 12968
Felix Schumm - CC BY-SA 4.0
[VZR21], Italia, Sicilia: Pollina urbs, loco "Final" dicto, 80 m. Ad saxa granitica. Leg. et det. D. Puntillo, 30.03.1991. Ex A. Vezda: Lichenes Rariores Exsiccati Nr. 21.
Felix Schumm - CC BY-SA 4.0
[VZR21], Italia, Sicilia: Pollina urbs, loco "Final" dicto, 80 m. Ad saxa granitica. Leg. et det. D. Puntillo, 30.03.1991. Ex A. Vezda: Lichenes Rariores Exsiccati Nr. 21.
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (20400)
2001/11/20
Felix Schumm - CC BY-SA 4.0
[VZR21], Italia, Sicilia: Pollina urbs, loco "Final" dicto, 80 m. Ad saxa granitica. Leg. et det. D. Puntillo, 30.03.1991. Ex A. Vezda: Lichenes Rariores Exsiccati Nr. 21.
Felix Schumm - CC BY-SA 4.0
[VZ2379], Italia. Sardinia. Prov. Cagliari: reservatum naturae Monte Arcosu, in valle rivi 8 km ad orientem a domo foretali Casa Pedu Melis, 1800 m. Ad saxa silicea, Leg. P. L. Nimis, C. Roux. M. Tretiach & A. Vezda. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 2379.
Felix Schumm - CC BY-SA 4.0
[VZ2379], Italia. Sardinia. Prov. Cagliari: reservatum naturae Monte Arcosu, in valle rivi 8 km ad orientem a domo foretali Casa Pedu Melis, 1800 m. Ad saxa silicea, Leg. P. L. Nimis, C. Roux. M. Tretiach & A. Vezda. EX A. VEZDA LICHENES SELECTI EXSICCATI NR. 2379.
Felix Schumm - CC BY-SA 4.0
[VZ1902], Hispania.Prov. Zaragoza: In faucibus Jalón, 5 km ad septentriones et occidentem ab Embid de la Ribera, 450 m. Ad saxa quarzitica. Leg. J.T. Corbin & A. Vezda, 24.05.1983. - Ex A. VEZDA: LICHENES SELECTI EXSICCATI NR. 1902.
Felix Schumm - CC BY-SA 4.0
[VZ1902], Hispania.Prov. Zaragoza: In faucibus Jalón, 5 km ad septentriones et occidentem ab Embid de la Ribera, 450 m. Ad saxa quarzitica. Leg. J.T. Corbin & A. Vezda, 24.05.1983. - Ex A. VEZDA: LICHENES SELECTI EXSICCATI NR. 1902.
Felix Schumm - CC BY-SA 4.0
[VZ1186], Gallia, Var: Hyéres, Le Fenouillet, 250 m. Ad saxa schistosa et quartzitica. Leg. Y. Rondon, 29.3.1973. Ex A. VEZDA: LICHENES SELECTI EXSICCATI NR. 1186.
