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Research Article
Notulae to the Italian flora of algae, bryophytes, fungi and lichens: 3
expand article infoSonia Ravera, Annalena Cogoni§, Alfredo Vizzini|, Michele Aleffi, Silvia Assini#, Matteo Barcella¤, Wolfgang von Brackel«, Stefania Caporale», Zuzana Fačkovcová˄, Giorgia Filippino˅, Gabriele Gheza#, Daniela Gigante¦, Luca Paoliˀ, Giovanna Potenzaˁ, Silvia Poponnessi¦, Filippo Prosser, Domenico Puntillo, Michele Puntillo, Roberto Venanzoni¦
‡ Unaffiliated, Roma, Italy
§ University of Cagliari, Sardinia, Italy
| University of Turin, Turin, Italy
¶ University of Camerino, Camerino, Italy
# University of Pavia, Pavia, Italy
¤ Università di Pavia, Pavia, Italy
« Institut für Vegetationskunde und Landschaftsökologie, Hemhofen, Germany
» University of Molise, Isernia, Italy
˄ Slovak Academy of Sciences, Bratislava, Slovakia
˅ Dipartimento di Scienze della Vita e dell'Ambiente, Cagliari, Italy
¦ University of Perugia, Perugia, Italy
ˀ University of Siena, Siena, Italy
ˁ Università della Basilicata, Potenza, Italy
₵ Fondazione Museo Civico di Rovereto, Rovereto, Italy
ℓ Museo di Storia Naturale della Calabria ed Orto Botanico, Arcavacata di Rende (Cosenza), Italy
₰ Botanico, Università della Calabria, Cosenza, Italy
Open Access

Abstract

In this contribution, new data concerning bryophytes, fungi and lichens and of the Italian flora are presented. It includes new records and confirmations for the bryophyte genera Dicranodontium, Fontinalis, Lophocoleaand Riccia, the fungal genus Diplolaeviopsis, the lichen genera Agonimia, Cladonia, Protoparmelia, Rhizocarpon, and Scytinium.

Keywords

Ascomycota, Bryidae, Marchantiidae, Jungermanniidae, floristic data

How to contribute

The text of the records should be submitted electronically to: Cecilia Totti (c.totti@univpm.it) for algae, Annalena Cogoni (cogoni@unica.it) for bryophytes, Alfredo Vizzini (alfredo.vizzini@unito.it) for fungi, Sonia Ravera (sonia.ravera@unimol.it) for lichens.

Floristic records

BRYOPHYTES

Dicranodontium denudatum (Brid.) E.Britton (Leucobryaceae)

+ UMB: Monte Serano (Perugia), in the Special Areas of Conservation (SAC) IT5210047 Monti Serano - Brunette (sommità) on humicolous slope in woodland (UTM WGS84: 33T 320531.47483336), 1340 m, 14 October 2013, S. Poponessi, M. Aleffi (BPERU). – Species new for the flora of Central Italy.

According to Aleffi et al. (2008), the presence in Italy of Dicranodontium denudatum is restricted to a number of northern localities. However, its occurrence in Veneto, Liguria, Emilia-Romagna, Toscana, Campania and Sardegna has not been confirmed over the last 50 years. The site in Umbria is characterized by the presence of Holm oak (Quercus ilex L.) woods. This record is also interesting because the reported altitudinal range of the species is generally lower in Europe, up to about 1000 m (Smith 2004, Poponessi et al. 2014). Dicranodontium denudatum does not seem to be widespread in the Mediterranean basin, but it is widely distributed in Europe, assigned to the European Boreal-montane floristic element. It usually grows on damp shaded rocks, decaying wood and peaty soil in woods and occasionally in open habitats (Smith 2004). Dicranodontium denudatum is a species threatened with extinction in several European countries: it is considered as Critically Endangered (CR) in Ireland, Vulnerable (VU) in Bulgaria and Endangered (EN) in Hungary. In Italy, the data are not usfficient for an assessment (Hodgetts 2015).

S. Poponessi, M. Aleffi, D. Gigante, R. Venanzoni

Fontinalis hypnoides C.Hartm. var. duriaei (Schimp.) Kindb. (Fontinalaceae)

+ VEN: 400 m NW of Roversola, Oppeano, (Verona), in Fosso Ladretto, with Potamogeton nodosus Poir. (UTM WGS84: 32T 663016.5023250), 30 m, 23 October 2015, F. Prosser (Herb. Prosser No. 00084). – Species new for the flora of Veneto.

The only Fontinalis reported for Veneto is F. antipyretica Hedw. (Aleffi et al. 2008), from which Fontinalis hypnoides var. duriaei can be easily distinguished for the not keeled stem leaves. Fontinalis hypnoides var. duriaei differs from other Italian species for plane (not concave) stem leaves and for leaf margin without 1-4 rows of elongate cells. Fontinalis hypnoides var. duriaei is reported in northern Italy only for Lombardia, but not confirmed after 1950, and for Emilia-Romagna; it occurs also in Toscana, Lazio before 1950, Sardegna and Sicilia (Aleffi et al. 2008). The similar F. hypnoides var. hypnoides is reported in northern Italy only for Lombardia, but without confirmation after 1950. Unfortunately, we have no information about the population size of F. hypnoides var. duriaei and its diffusion near Roversola.

F. Prosser

Lophocolea bidentata (L.) Dumort. (Geocalycaceae)

+ VEN: Sass Negher (Belluno), near Serrai di Sottoguda Natural Reserve and Marmolada Glacier, groove in the rock (UTM WGS84: 32T 726144.5145940), 1403 m, 8 December 2016, S. Poponessi (PERU). – Species confirmed for the flora of Veneto.

Lophocolea bidentata is an austral-tropical montane liverwort species (Dierßen 2001). It has been widely recorded in central and northern Italy (Aleffi et al. 2008), but the last record in Veneto dates back to the early 1900s (Massalongo 1903). The area of occurrence is characterized by a moist gorge in a rocky dolomitic wall, along the border between beech and coniferous trees. Associate species include Plagiopus oederianus (Sw.) H.A.Crum. & L.E.Anderson var. oederianus, Fissidens adianthoides Hedw., Nekera crispa Hedw., Jungermannia gracillima Sm., Cephalozia bicuspidata (L.) Dumort., Lejeunea cavifolia (Ehrh.) Lindb. and Ptychostomum pseudotriquetru m (Hedw.) J.R.Spence & H.P.Ramsay var. bimum (taxon to be confirmed, according to Hodgetts 2015). Two ferns are also associate: Asplenium ruta-muraria L. subsp. dolomiticum Lovis & Reichst., and Asplenium trichomanes L. Lophocolea bidentata is widely distributed in Europe and is considered Vulnerable (VU) in Finland and Near Threatened (NT) in Italy (Hodgetts 2015).

S. Poponessi, M. Aleffi, D. Gigante, R. Venanzoni

Riccia cavernosa Hoffm. (Ricciaceae)

+ CAL: Lago Cecita (Cosenza), in the Sila National Park on muddy soil along the lakeshore (UTM WGS84 33S 630173.4358704), 1137 m, 13 September 2014, D. Puntillo (CLU No. 4090). – Species new for the flora of Calabria.

The species is recognizable for the perforations to the branch tips of the thallus and for their triangular-globular, polar spores incompletely reticulate. Distal face with smooth, irregular low ridges, proximal face often granulate; covered with simple or branching ridges (Dierßen 2001). Riccia cavernosa normally lives on seasonally wet or flooded habitats. It is a cosmopolitan species widespread known in Europe and in the Mediterranean Basin (Ros et al. 2007, Hodgetts 2015). This species is known in Italy for Lombardia, Trentino-Alto Adige, Emilia Romagna, Abruzzo, Puglia and Sicilia (Aleffi et al. 2008). In Europe, it is assessed as Endangered (EN) in Norwey and Austria, Vulnerable (VU) in Germany and Critically Endangered (CR) in Portugal and Switzerland (Hodgetts 2015).

D. Puntillo

FUNGI

Diplolaeviopsis ranula Giralt & D.Hawksw. (encoelioid-clade)

+ CAM: Gole del Bussento, Morigerati (Salerno), on Lecanora strobilina (Spreng.) Kieff. (UTM WGS84 33T 547000.4443740), 220 m, 28 July 1997, D. Puntillo (CLU No. 13436; dupl. Hb Diederich, Luxembourg). – Species new for the flora of Italy (Campania).

This species is a lichenicolous pycnidial coelomycete, commensal to pathogens on the apothecia and thalli of the Lecanora strobilina (Spreng.) Kieff. complex, and recognized by the characteristic 1(–2)-septate, often asymmetric, tadpole-shaped conidia (Giralt and Hawksworth 1991). This lichenicolous fungus is not included in the Italian preliminary check-list (Brackel 2016). It has been reported so far from France, Great Britain, Luxembourg, Portugal, Spain, Brazil and the USA, as associated with Lecanora strobilina and Lecanora strobilinoides Giralt & Gómez-Bolea (Giralt and Hawksworth 1991, Bricaud et al. 1992, Diederich et al. 1992, van den Boom and Giralt 1999, Earland-Bennett 1999, Diederich 2003, Hodkinson 2010). Its sexual morph has been recently described by Suija et al. (2015) and molecularly confirmed by Etayo et al. (2015). Phylogenetically it clusters in the encoelioid-clade (Helotiales) where it is sister to the genus Macroskyttea Etayo, Flakus, Suija & Kukwa (Etayo et al. 2015).

D. Puntillo, M. Puntillo, A. Vizzini

LICHENS

Agonimia octospora Coppins & P.James (Verrucariaceae)

+ CAM: Pisciotta (Salerno), on Olea europaea L. (UTM WGS84: 33T 519127.4440793), 230 m, 22 February 2011, leg. S. Ravera, G. Brunialti, det. S. Ravera (Herb. Ravera); Ottati (Salerno), on Quercus ilex L. (UTM WGS84: 33T 526762.4479360), 630 m, 12 April 2011, leg. S. Ravera, G. Brunialti, det. S. Ravera (Herb. Ravera). – Species new for the flora of Southern Italy (Campania).

Agonimia octospora is an epiphytic microlichen with squamulose thallus and more or less scattered perithecia, often sterile. Growing on basal parts of old trees, usually on bark among mosses, it is overlooked in the field not only for the small squamules of the thallus (0.05-0.25 × 0.05-0.12 mm). These two records confirm the scarce poleotolerance (Nimis 2016) of the species: both of the sites include undisturbed centenary trees in an olive orchard (Pisciotta) and in an old-growth wood (Ottati). Agonimia octospora is included in the national red list of epiphytic lichens as “Data Deficient” (Nascimbene et al. 2013).

S. Ravera

Agonimia opuntiella (Buschardt & Poelt) Vězda (Verrucariaceae)

+ TOS: Collina di Vinacciano, “via di Piastreta e Collina”, Serravalle Pistoiese (Pistoia), on Quercus pubescens Willd. (UTM WGS84: 32T 650152.4861724), 225 m, 22 August 2016, Z. Fačkovcová, L. Paoli (SIENA); Collina di Vinacciano, in the proximity of the cemetery of Vinacciano, Serravalle Pistoiese (Pistoia), on Q. pubescens (UTM WGS84: 32T 650153.4861118), 160 m, 22 August 2016, Z. Fačkovcová, L. Paoli (SIENA); “via Forniccione”, Serravalle Pistoiese (Pistoia), on Q. pubescens (UTM WGS84: 32T 652397.4861553), 65 m, 26 August 2016, Z. Fačkovcová, L. Paoli (SIENA). – Species confirmed for the flora of Toscana.

The species has a squamulose thallus, with minutely papillate and hairy surface. Due to the small dimensions, in the field it could be confused with young specimens of Physconia servitii (Nádv.) Poelt or Phaeophyscia hirsuta (Mereschk.) Essl. Agonimia opuntiella is rare and likely underestimated in Italy. A previous record in Toscana has been reported for the province of Grosseto, on Olea europaea L. (Brackel 2015).

L. Paoli, Z. Fačkovcová

Chaenotheca hispidula (Ach.) Zahlbr. (Coniocybaceae)

+ ABR: Vallevò, Rocca San Giovanni (Chieti), on bark of Quercus pubescens Mill. in Fosso della Farfalla (UTM WGS84: 33T 2476175.4681392), 69 m, 6 November 2010, S. Caporale, T. Pagliani, F. Piccoli, R. Verì (Herb. S. Caporale). – Species new for the flora of Abruzzo.

It is a cosmopolitan species, widely distributed in Europe from the Boreal to the Mediterranean-Mountain belt. In Italy it is found rarely and its presence was probably overestimated in the past (Zedda 2002). It colonizes preferentially cavities in the bark and at the base of old trees, especially oaks, in damp and non-eutrophic woods (Nimis 2016). The presence of lichens belonging to the ‘Caliciales’ group is considered indicative of environmental quality and ecological continuity (Ravera and Puntillo 2014). It is included in the national red list of epiphytic lichens as “Near Threatened” (Nascimbene et al. 2013).

S. Caporale

Cladonia polycarpoides Nyl. (Cladoniaceae)

+ PIE: Cascina Casone, Pombia (Novara), within the Natural Park Valle del Ticino, on sandy-pebbly soil in a dry grassland (UTM WGS84: 32T 475582.5054277), 172 m, 10 June 2016, G. Gheza (Herb. Gheza); Barbelera, Oleggio (Novara), within the Natural Park Valle del Ticino, on sandy-pebbly soil in a dry grassland (UTM WGS84: 32T 474874.5051835), 161 m, 21 April 2016, G. Gheza (Herb. Gheza); Marcetto, Oleggio (Novara), within the Natural Park Valle del Ticino, on sandy-pebbly soil in a dry grassland (UTM WGS84: 32T 475072.5051295), 158 m, 21 April 2016, G. Gheza (Herb. Gheza); Tenuta Bornago, Cameri (Novara), within the Natural Park Valle del Ticino, on sandy-pebbly soil in a dry grassland (UTM WGS84: 32T 476694.5044401), 141 m, 17 June 2016, G. Gheza (Herb. Gheza); Villa Giulia, Cerano (Novara), within the Natural Park Valle del Ticino, on sandy-pebbly soil in a dry grassland (UTM WGS84: 32T 487030.5027303), 99 m, 25 March 2016, G. Gheza (Herb. Gheza); surroundings of Canale Cavour, Greggio (Vercelli), near the boundary of the Natural Park Lame del Sesia, on soil in a pioneer dry grassland (UTM WGS84: 32T 452897.5034279), 167 m, 3 May 2016, G. Gheza (Herb. Gheza); Gerbido di Greggio (Vercelli), within the Natural Park Lame del Sesia, on soil in an evolved dry grassland (UTM WGS84: 32T 452849.5032860), 160 m, 4 March 2016, G. Gheza (Herb. Gheza); Gerbido di Villata (Vercelli), within the Natural Park Lame del Sesia, on sandy-pebbly soil in a dry grassland (UTM WGS84: 32T 453022.5026746), 138 m, 4 March 2016, G. Gheza (Herb. Gheza); Torrette di Frassineto, Frassineto Po (Alessandria), surroundings of the confluence between the rivers Sesia and Po, within the River Park “Parco fluviale del Po tratto vercellese/alessandrino e Riserva Naturale del Torrente Orba”, on sandy-silty soil in a dry grassland (UTM WGS84: 32T 467121.4998255), 99 m, 17 February 2016, G. Gheza (Herb. Gheza). – Species new for the flora of Piemonte.

+ LOM: Ansa di Castelnovate, Vizzola Ticino (Varese), within the Natural Park Valle del Ticino, on sandy soil in a dry grassland (UTM WGS84: 32T 473961.5052563), 164 m, 16 June 2016, G. Gheza (Herb. Gheza); surroundings of the Ticino river near Bernate Ticino (Milano), within the Natural Park Valle del Ticino, on sandy soil in a dry grassland (UTM WGS84: 32T 484052.5035066), 117 m, 25 March 2016, G. Gheza (Herb. Gheza); Tenuta La Fagiana, Pontevecchio di Magenta (Milano), within the Natural Park Valle del Ticino, on sandy soil in a dry grassland (UTM WGS84: 32T 486481.5030650), 109 m, 26 April 2016, G. Gheza (Herb. Gheza); Bosco Ronchi, Vigevano (Pavia), within the Natural Park Valle del Ticino, on sandy soil in a dry grassland (UTM WGS84: 32T 495866.5013406), 78 m, 30 May 2016, G. Gheza (Herb. Gheza). – Species confirmed for the flora of Lombardia.

Cladonia polycarpoides is known from only few administrative regions in Italy (Nimis 2016). The only literature record in Lombardia, from the lower Valtellina (Rossi 1991), refers to a single site, while the species is new for Piemonte. On the basis of the new records reported here, which extend the Italian range of the species to the Po Plain, C. polycarpoides seems to be well distributed in dry grasslands of the Thero-Airion Tüxen ex Oberdorfer 1957 located on acidic substrates along the course of two main rivers (Sesia and Ticino). It was always found in the Cladonietum foliaceae Klement 1953 emend. Drehwald 1993.

G. Gheza

Cladonia furcata (Huds.) Schrad. subsp. subrangiformis (L. Scriba ex Sandst.) Pišút (Cladoniaceae)

+ PIE: Portanuova, Casal Cermelli (Alessandria), surroundings of Cascina Merlana, on basic sandy-pebbly soil in a dry grassland (UTM WGS84: 32T 471806.4962778), 109 m, 10 May 2016, G. Gheza, S. Assini (Herb. Gheza); between Villalvernia and Cassano Spinola (Alessandria), bird ringing station near the Scrivia river, on calcareous sandy-pebbly soil (UTM WGS84: 32T 488531.4959878), 162 m, 14 April 2016, G. Gheza, S. Assini (Herb. Gheza); Gremiasco (Alessandria), surroundings of the Osservatorio Astronomico di Guardamonte, on sandstone outcrops (UTM WGS84: 32T 506270.4962306), 682-687 m, 9 December 2016, G. Gheza (Herb. Gheza). – Subspecies confirmed for the flora of Piemonte.

+ LOM: Cecima (Pavia), surroundings of the Osservatorio Astronomico di Guardamonte, on soil in a dry grassland (UTM WGS84: 32T 506264.4962342), 690 m, 9 December 2016, G. Gheza (Herb. Gheza); Fontana di Nivione, Varzi (Pavia), on clay soil on badlands (UTM WGS84: 32T 514388.4962082), 490-501 m, 10 November 2016, G. Gheza, M. Barcella (Herb. Gheza, Herb. Barcella); San Michele di Nivione, Varzi (Pavia), on calcareous soil (UTM WGS84: 32T 514671.4960675), 503-508 m, 10 November 2016, G. Gheza, M. Barcella (Herb. Gheza, Herb. Barcella); Cella di Varzi (Pavia) surroundings of Castello Malaspina, on arenaceous soil (UTM WGS84: 32T 514394.4958621), 705-710 m, 10 November 2016, G. Gheza, M. Barcella (Herb. Gheza, Herb. Barcella). – Subspecies new for the flora of Lombardia.

+ EMI: Bobbio (Piacenza), ophiolite outcrop east of the mount Pan Perduto, on soil (UTM WGS84: 32T 528845.4963028), 995-997 m, 25 June 2013, G. Gheza (Herb. Gheza). – Subspecies confirmed for the flora of Emilia Romagna.

Cladonia furcata subsp. subrangiformis is a terricolous species found typically on basic-calcareous soil, with a rather continental distribution (Nimis 1993). It was previously known in two localities in Piemonte and three in Emilia Romagna (see literature cited by Nimis 1993, 2016); moreover, all the records from Piemonte are very old. The new records reported here extend the range of the species to planitial calcareous dry grasslands located south of the Po river in Piemonte and to the Appennino Pavese in the southernmost part of Lombardia. The species seems rather common in terricolous cryptogam communities on pioneer calcareous, arenaceous and clayey substrates and, therefore, it is probably more widespread than believed until now in the northern Apennines, especially in lichen communities of the Toninion sedifoliae Hadač 1948 emend. Wirth 1995 on badlands, calcareous rock outcrops and similar substrates.

G. Gheza, M. Barcella, S. Assini

Protoparmelia badia (Hoffm.) Hafellner (Parmeliaceae)

+ BAS: Cerro Falcone, Calvello (Potenza), on acid rock (UTM WGS84 33T 567960.4478689, 963 m. 7 August 2012, G. Potenza, D. Puntillo (CLU No. 16685). – Species new for the flora of Basilicata.

Described by Hoffmann (1795) as Verrucaria badia and transferred to the genus Lecanora by Acharius (1810). Due to the placodioid thallus, the species was transferred to the genus Protoparmelia by Hafellner (1984). Bipolar species in alpine and mountainous areas of Europe, North America, Asia, South America, New Zealand and Antarctica. It grows on well-lit, hard, siliceous rocks. In Italy, it was recorded from Friuli to Sicily (Nimis 2016).

G. Potenza, D. Puntillo

Rhizocarpon dinothetes Hertel & Leuckert (Rhizocarpaceae)

+ SAR: Monte Limbara (Olbia-Tempio), Multa Ragna, on siliceous rock, parasitic on Protoparmelia montagnei (Fr.) Poelt & Nimis (UTM WGS84: 32T 511531.4522312), 975 m, 3 September 2014, W. v. Brackel, G. v. Brackel (Herb. Brackel 7858). – Species confirmed for the flora of Sardegna.

This is the second report for Italy after that of R. Türk in 1986 at the Passo La Variante some kilometers away from the location of the recent find (Nimis and Poelt 1987). Rhizocarpon dinothetes lives parasitically on Protoparmelia badia (Hoffm.) Hafellner and P. montagnei on well-lit siliceous rocks. It is easily recognized by its allegiance to the host lichen, the bright greenish-yellow thallus, roundish, black, marginate apothecia and small (sub-)muriform ascospores of c. 13.5–24.5 × 8.5–11.5 µm. Except for Sardegna, it was known until now only from Austria and Spain.

W. von Brackel

Scytinium schraderi (Ach.) Otálora, P.M.Jørg. & Wedin (Collemataceae)

+ PIE: between Villalvernia and Cassano Spinola (Alessandria), bird ringing station near the Scrivia river, on calcareous sandy-pebbly soil (UTM WGS84: 32T 488531.4959878), 162 m, 5 May 2016, G. Gheza (Herb. Gheza). – Species confirmed for the flora of Piemonte.

+ LOM: Basella (Bergamo), in the Nature Reserve Basella-Malpaga, near the Serio river, on calcareous soil (UTM WGS84: 32T 557658.5051025), 182 m, 31 March 2016, G. Gheza (Herb. Gheza). – Species new for the flora of Lombardia.

Scytinium schraderi is a cyanolichen found on calcareous soil and rock. It was previously known for Piemonte and only from one locality (Nimis 2016), while it is new for Lombardia. The two sites described here are rather similar, being located in dry grasslands on calcareous substrates along the planitial course of two main rivers. Scytinium schraderi was sampled within rather pioneer stands of a lichen-moss community referable to the Toninio-Psoretum decipientis Stodieck, 1973.

G. Gheza

Acknowledgements

Gabriele Gheza thanks Paola Palazzolo (Parco Fluviale del Po e dell’Orba), Agostino Pela (Parco Naturale delle Lame del Sesia) and Valentina Parco (Parco Naturale della Valle del Ticino Lombardo) for having revealed some of the sites in which Cladonia polycarpoides was found.

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