Research Article |
Corresponding author: Marco D'Antraccoli ( marco.dantraccoli@biologia.unipi.it ) Academic editor: Gianniantonio Domina
© 2020 Francesco Roma-Marzio, Marco D'Antraccoli, Daniele Angeloni, Fabrizio Bartolucci, Liliana Bernardo, Laura Cancellieri, Giuseppe Caruso, Fabio Conti, David Dolci, Giovanni Gestri, Leonardo Gubellini, Nicole Hofmann, Valentina L.A. Laface, Edda Lattanzi, Paolo Lavezzo, Giovanni Maiorca, Giulia Montepaone, Carmelo M. Musarella, Domenico Noto, Enrico V. Perrino, Elisa Proietti, Rizzieri R. Masin, Anna Scoppola, Adriano Stinca, Manuel Tiburtini, Agnese Tilia, Lorenzo Peruzzi.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Roma-Marzio F, D'Antraccoli M, Angeloni D, Bartolucci F, Bernardo L, Cancellieri L, Caruso G, Conti F, Dolci D, Gestri G, Gubellini L, Hofmann N, Laface VL.A, Lattanzi E, Lavezzo P, Maiorca G, Montepaone G, Musarella CM, Noto D, Perrino EV, Proietti E, Masin RR, Scoppola A, Stinca A, Tiburtini M, Tilia A, Peruzzi L (2020) Contribution to the floristic knowledge of Sillaro, Santerno, and Senio high valleys (Toscana, Italy). Italian Botanist 10: 101-111. https://doi.org/10.3897/italianbotanist.10.60118
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The inventory of the taxa collected during the annual field trip of the working group for Floristics, Systematics and Evolution of the Italian Botanical Society is reported. The field trip was held in 2019 along the Sillaro, Santerno, and Senio high valleys located in Toscana (central Italy). The flora documented for the studied area amounts to 492 specific and subspecific taxa (including five hybrids), belonging to 254 genera and 77 families. Bromopsis caprina, Ophrys appennina, O. classica, Polygala flavescens subsp. flavescens, and Pulmonaria vallarsae subsp. apennina were the only five Italian endemics found in the study area, whereas 28 alien taxa were detected. Finally, nine taxa (seven native and two alien) have to be considered as new records for the regional flora of Toscana.
Alien species, Apennine, biodiversity, endemics, floristic novelties, vascular flora
The working group for Floristics, Systematics and Evolution of the Italian Botanical Society has been active in increasing the floristic knowledge of poorly known areas of Italy (e.g.,
Here we present the results of the field trip held in 2019 in Toscana, selecting territories poorly known based also on the analysis of the floristic knowledge reported in the online database Wikiplantbase #Toscana (
Seemingly based on the work published by
The study area includes the high valley of the rivers Sillaro, Santerno, and Senio, located in the province of Florence (municipalities of Firenzuola and Palazzuolo sul Senio) in the north-eastern part of Toscana, at the boundary with Emilia-Romagna (Fig.
According to the classification of
In order to optimize the sampling, 12 sites were selected basing on 3 criteria: (a) to maximise the environmental heterogeneity among sampling sites, (b) to fall in the less-explored areas according to the available floristic knowledge, and (c) to ensure the sampling representativeness of all the tree valleys (Table
List of sampling sites, with reference number, locality name, altitude, main habitat, geographic coordinates and date of collection.
ID | Locality | Habitat | Altitude (m a.s.l.) |
Coordinates | Date |
---|---|---|---|---|---|
1A | Firenzuola (Firenze), Santerno valley, hills east of the village of San Pellegrino | Thermophilous rocky environments, and woods with a prevalence of chestnut | 350–530 | 44°07'16.9"N, 11°25'57.3"E | 15 May 2019 |
2A | Firenzuola (Firenze), Santerno valley, along the pathway CAI 721 from the locality Cerreta to the ruins of the San Biagio alle Piagnole Church | Mixed broadleaved deciduous woods | 365–565 | 44.149328"N, 11.425273"E | 16 May 2019 |
2B | Firenzuola (Firenze), Santerno valley, along the pathway CAI 721 on the north east side of the Mt. Coloreta in the vicinity of the San Biagio alle Piagnole Church | Rocky environments | 565–600 | 44.146741"N, 11.424881"E | 16 May 2019 |
2C | Firenzuola (Firenze), Santerno valley, along the riverbed of the Diaterna torrent in the locality Cerreta | Riverbed and meadows | 340–380 | 44.151941"N, 11.426096"E | 16 May 2019 |
2D | Firenzuola (Firenze), Sillaro valley, Sasso della Mantesca | Ophiolitic rocky environments, shrub formations and pastures | 780–860 | 44.220403"N, 11.396629"E | 16 May 2019 |
2E | Firenzuola (Firenze), Sillaro valley, along the Sillaro torrent, near Piancaldoli | Riparian habitat, meadows and abandoned arable lands | 460–480 | 44.216491"N, 11.428498"E | 16 May 2019 |
3A | Palazzuolo sul Senio (Firenze), Senio valley, along the blue pathway n° 10 from Palazzuolo sul Senio to the ruins of Castellaccio | Mixed broadleaved deciduous woods, clearings and rocky environments | 445–585 | 44.108831"N, 11.546825"E | 17 May 2019 |
3B | Firenzuola (Firenze), Santerno valley, along the street SP32 named “della Faggiola” near the Parietaio Pass | Meadows and pastures | 850–900 | 44.14761"N, 11.49833"E | 17 May 2019 |
3C | Firenzuola (Firenze), Santerno valley, along the street SP32 named “della Faggiola” on the south east side of Poggio Stignano | Pastures, shrub formations and eroded lands (named “calanchi”) | 700–750 | 44.14980"N, 11.48833"E | 17 May 2019 |
3D | Firenzuola (Firenze), Santerno valley, along the pathway from the riverbed of the Santerno river to the ruins of Castiglioncello | Ruins, meadows and edges of the forest | 250–350 | 44.175174"N, 11.481944"E | 17 May 2019 |
H | Firenzuola (Firenze), Valle del Santerno, in the locality Contessa Lina in the ground of the Hotel Gli Orzali | Meadows | 450–500 | 44.110387"N, 11.386196"E | 15–18 May 2019 |
Z | Firenzuola (Firenze), Sillaro valley, Sasso di San Zanobi, along the pathway around and on the top of the “Sasso” | Meadows and ophiolitic rocky environments | 850–860 | 44.197493"N, 11.384966"E | 18 May 2019 |
The sites were preliminarily investigated on March 20th–22nd and May 1st 2019 by the organisers, then sampled during the period May 15th–18th 2019 by all participants. A comparative revision of critical collections and of unidentified specimens collected during the field work was carried out at the University of Pisa on February 5th–7th 2020.
The nomenclature of taxa follows the updated checklists of the vascular flora native (
During the field investigations a total of 2,860 specimens were collected, belonging to 492 species and subspecies, 254 genera, and 77 families (Suppl. material
Bromopsis caprina (A.Kern. ex Hack.) Banfi & N.G.Passal., Ophrys appennina Romolini & Soca, O. classica Devillers-Tersch. & Devillers, Polygala flavescens subsp. flavescens, and Pulmonaria vallarsae subsp. apennina (Cristof. & Puppi) L.Cecchi & Selvi were the only five Italian endemics found in the study area.
A total of 28 alien taxa were detected of which 5 are casual, 16 naturalized and 7 invasive aliens (Ailanthus altissima (Mill.) Swingle, Artemisia verlotiorum Lamotte, Robinia pseudoacacia L., Senecio inaequidens DC., Veronica persica Poir., Vitis × instabilis Ardenghi, Galasso, Banfi & Lastrucci, and V. × koberi Ardenghi, Galasso, Banfi & Lastrucci).
Besides Bromopsis caprina, eight taxa (six native and two alien) are new for the regional flora of Toscana: Campanula portenschlagiana Schult. (casual alien), Crepis albida subsp. albida, Hypochaeris laevigata (L.) Ces., Pass. & Gibelli, Potentilla neglecta Baumg., P. pusilla Host (Fig.
A view from the site 3D in Castiglioncello (Firenzuola, Firenze) (A); Polygala nicaeensis subsp. mediterranea from site 2A (B); Potentilla neglecta (C) and P. pusilla (D) from site 2D, both new records for the flora of Toscana. For details on the sample sites, see Table
Among the 492 species and subspecies identified in this work, five are Italian endemics that occur in many other Italian regions, and are included in the Red List of the Italian endemic flora (
Concerning the native flora, besides B. caprina, six taxa are new for Toscana (
Concerning Glechoma × pannonica, the occurrence of putatively hybrid populations between Glechoma hederacea L. and G. hirsuta Waldst. & Kit. in central and northern Italy was already reported by
Among native species, the following 21 taxa are reported for the first time for the province of Florence (
Twenty-eight out of the 492 identified taxa (5%) are non-native. Two of them are new for the flora of Toscana (
Campanula portenschlagiana is native to south-eastern Europe, and it was reported for the first time as alien in Italy for Lombardia (
Among alien species, further four taxa (Allium shoenoprasum subsp. schoenoprasum locally alien, Alnus cordata (Loisel.) Duby, Avena sterilis subsp. ludoviciana (Durieu) Gillet & Magne, and Bromopsis inermis subsp. inermis), are reported for the first time for the province of Florence (
We are grateful to E. Banfi (Milano), G. Domina (Palermo) and G. Gottschlich (Tübingen) for the identification of some critical samples of Bromopsis Fourr., Hieracium L. and Pilosella Hill, and Orobanche L., respectively. The staff of Botanical Garden and Museum of Pisa is gratefully acknowledged for the logistic support during the revision of critical specimens.
Supplementary data
Data type: species data
Explanation note: 1. Participants to the field trip of the working group for Floristics, Systematics and Evolution of the Italian Botanical Society (May 15th–18th 2019). 2. Public and private herbaria in which the collected exsiccata are kept. 3. Inventory of the taxa collected during the field trip held in May 2019 along the High Valley of Sillaro, Santerno, and Senio (Toscana). 4. Pictures of selected species and landscapes shot during the field trip held in May 2019 along the High Valleys of Sillaro, Santerno, and Senio (Toscana).