Search results for "Flora"
showing 10 items of 989 documents
Taxonomic and phylogenetic relations of Allium chamaespathum Boiss., a remarkable species of Balkan Flora
2018
Allium chamaespathum Boiss., the only autumn-flowering species of Sect. Allium, was studied based on morphology, karyology, seed coat microsculpturing and DNA sequences from several populations.
Note tassonomiche e biosistematiche su Anthemis aeolica (Asteraceae).
2016
Sono riportati i risultati relativi alla caratterizzazione morfologica, distribuzione attuale , ecologia e correlazioni sistematiche della specie endemica Anthemis aeolica
The use of herbarium specimens in evaluating plant extinction risks: some considerations on Sicilian endemics
2019
Herbarium specimens provide verifiable and citable evidence of the occurrence of plant taxa at a given place and time. Thus they caΩn be used to identify native ranges, and document which plants are occurring, and where, through time. They provide information on rare, extirpated, or extinct species that can no longer be found in nature. Furthermore, they can serve as a means of locating rare or possibly extinct species, recollecting in the area(s) reported on labels. Thus, herbarium specimens can be used as primary sources of data to have evidence-based extinction risk assessments. Each extinction risk assessments is an evidence-based hypothesis of the current level of extinction risk of a …
First finding in Sicily of Bidens subalternans (Asteraceae)
2017
It is reported the presence in Sicily of a new alien species destined to a progressive further spread in the Island. It is Bidens subalternans DC., an annual asteracea of American origin, already known in other Italian regions (Friuli Venezia Giulia, Lombardia, Marche, Lazio and Campania) and in other European countries (Belgium, Corse, Croatia, Cyprus, France, Germany, Great Britain, Montenegro, Republic of Serbia, Slovenia, Spain, Switzerland). The new locality, in Sicily, occurs along the roadside Monreale – Pioppo, south of the city of Palermo. In this station, B. subalternans is found together with B. pilosa subsp. minor and other indigenous and exotic nitrophilous taxa. The population…
Araucaria columnaris (Araucariaceae) casual alien in Sicily
2021
The first case of spontaneous regeneration of Araucaria columnaris in Europe is reported. Data are given on the taxon and on the Sicilian site where A. columnaris - native to New Caledonia (Australia) - tends to spread autonomously.
Le piante officinali
2017
Vengono presentate 50 schede relative ad altrettante piante officinali e per ciascuna di esse si riportano i corrispondenti caratteri botanici, binomio scientifico, nome comune, distribuzione geografica, droga, principi attivi, usi ed impieghi terapeutici ed infine, interessanti note aggiuntive.
Segnalazione per la flora siciliana di Trifolium ornithopodioides L. (Fabaceae) e revisione della sua area di distribuzione.
2011
Trifolium ornithopodioides (L.) Sm. (Fabaceae) a new record for the Sicilian flora – T. ornithopodioides, a rare element of the Italian flora, is recorded for the first time in the territory of Palermo (Western-Sicily). The population identified, consisting of about one hundred individuals, colonizes a narrow area between the roadside and the edge of the freshwater temporary pond of Rebuttone, on acidic substratum (flysch) at 720 m a.s.l. After the examination of herbarium specimens (RO and FI) and literature, some incongruences have been found on the Italian distribution of this taxon. A distribution map including the new record, new literature data and corrections is presented.
Checklist of the vascular plants collected during the 12th “Iter Mediterraneum” in Tunisia, 24 March – 4 April 2014
2015
The vascular plants (plus one alga) collected during Iter Mediterraneum XII of OPTIMA in North Tunisia have been studied. In all, 1374 gatherings were made from 43 localities in the “Cap Bon” region, “Dorsale Tunisienne”, “Tunisie du Nord-Est”, “Vallée de la Medjedah”, “Mogods” and “Kroumirie” areas. They belong to 82 families and 539 species or subspecies. Three taxa are new for the flora of Tunisia (Cerastium diffusum subsp. gussonei, Senecio leucanthemifolius subsp. mauritanicus, and Ulmus minor subsp. canescens), 7 represent new records for the “Kroumirie”, 15 for the “Mogods”, 3 for the “Tunisie du Nord-Est”, 2 for the “Dorsale Tunisienne”, and 8 for “Cap Bon”
Floristica, Sistematica ed Evoluzione, Comunicazioni, Orto botanico di Roma, La Sapienza Università di Roma, 21-22 novembre 2014
2014
Raccolta dei minilavori delle comunicazioni presentate durante il convegno del gruppo di Floristica, Sistematica ed Evoluzione della Società Botanica Italiana all'Orto botanico di Roma il 21-22 novembre 2014
On the presence, distribution and conservation status of Lycopodium lagopus (Lycopodiaceae) in Italy
2014
During our work on the Lycopodiaceae account for the upcoming Flora Critica d’Italia (1, 2), we assessed and accepted the presence in Italy of Lycopodium lagopus (Laest. ex Hartm.) Zinserl. ex Kuzen. = L. clavatum subsp. monostachyon (Grev. & Hook.) Selander (2). Already reported by Fiori (3) as L. clavatum f. monostachyum Desv., its presence in Italy was more recently confirmed by Tribsch & Schönswetter (4) and accepted in some subsequent regional works (e.g. 5, 6), but the taxon is not recognized as distinct in the last national checklist of vascular plants (7). Lycopodium lagopus has an arctic-alpine distribution in America and Eurasia (8, 9). Initially described as a variety of L. clava…