Search results for "Botanica"
showing 10 items of 1665 documents
First record of Ribes uva-crispa L. (Grossulariaceae) from the Madonie Mts., a new species of the Sicilian flora.
2011
Abstract In this study, a first record of Ribes uva-crispa L. (Grossulariaceae) – a new species of the Sicilian flora – from the Madonie Mts. is reported. The autochthonous and relict new population of Ribes uva-crispa L. (Grossulariaceae) is found on Mount Carbonara (Madonie Mts., North-Central Sicily), which is several hundred kilometers away from the Central Apenninic and the South Mediterranean locations of its distribution range. R. uva-crispa shows a distribution similar to other taxa extending from the Euro-Asiatic area to the mountains of North Africa with disjunct populations on the main Sicilian reliefs (Madonie and Nebrodi Mts.), testifying ancient phytogeographical connections. …
Results of the 12th “Iter Mediterraneum” in Tunisia, 24 March - 4 April, 2014
2015
Are here presented the Results of the 12th “Iter Mediterraneum” in Tunisia, 24 March - 4 April, 2014. They include: The organization and logistics of the 12th OPTIMA Iter in Tunisia by Domina & al.; a bioclimatic and vegetation overview of the studied areas by Smaoui; the Checklist of the vascular plants collected by Greuter & Domina; a first Checklist of the Bryophytes collected by Campisi & al; a first Checklist of the lichens collected by Guttová & al.
The contribution of forest restoration to the conservation of woody endangered species in Sicily
2017
Sicilian forest ecosystems are, in general, numerically poor in terms of their floristic composition. As many studies on Sicilian dendroflora have highlighted, such poorness is not intrinsic to forest formations, but it is due to the millenary human pressures. Repeated passage of fire, continuous wood usage and reforestations by single or few species dra- matically reduced the plant biodiversity of Sicilian forest ecosystems, often suffering of monodominance. The Sicilian dendroflora includes several endangered species, such as Abies nebrodensis, Betula aetnensis, Celtis tournefortii subsp. asperrima and subsp. aetnensis, as the wild pears, which in Sicily are represented by 4 endemic speci…
The “manna” extracted from the ash trees still cultivated in Sicily from mythical food to pharmaceutical and nutraceutical resource
2022
“Manna” is the product obtained from the solidification of the elaborate sap that comes out of the incisions made during the summer season on the stem and on the main branches of some species of the genus Fraxinus (Oleaceae). The cultivation of manna ash trees dates back to ancient times in Sicily and elsewhere ash trees – known as sacred trees, a symbol of abundance and therefore auspicious – was increasingly widespread until the middle of the last century. Subsequently, however, the crop underwent a progressive decline, remaining relegated to restricted areas of Sicily, in particular in the Madonie district (Palermo, Italy). In this brief review, the essential characteristics of the manna…
The landscape of the manna ashes in Sicily
2009
The manna ashes are related to wild species of the genus Fraxinus, namely F. ornus (true manna ash) and F. angustifolia (narrow leaved ash). About two centuries ago, several varieties of such species, selected in ancient times, were widely cultivated for extracting the manna drug. This represented a remarkable economic resource for the region. Manna was extracted mainly for pharmacological industry, but today it has became a herbal product. Irrespective of the processes that reduced this cultivation to the lowest extent, the manna ash landscape is a remarkable peculiarity in the frame of the Mediterranean agrosystems. It is still kept alive as a relict cultivation within a very restricted a…
New insights on the occurrence and conservation status in Italy of Alessioporus ichnusanus (Boletaceae), an IUCN red listed mycorrhizal species
2020
The conservation status of Alessioporus ichnusanus is discussed considering new insights emerged from the IUCN global assessment. New locations were identified and Italy is confirmed as the center of distribution of this species. According to the IUCN categories and criteria, A. ichnusanus is assigned to the category Vulnerable C2a(i).
First morphological and molecular investigation of the mycobiota associated with Astragalus nebrodensis in its natural environment (Madonie mountains…
2023
Although Astragalus nebrodensis plays a fundamental ecological role, mycorrhizal fungi associated with this species have never been investigated in natural habitats. Our aim was to check the presence and occurrence of Arbuscular Mycorrhizal Fungi (AMF) in roots of A. nebrodensis in a natural habitat and to screen the fungal diversity in the surrounding soil, considering the positive influence of mycotrophic shrub species on soil microbiota. A morphological analysis was performed on A. nebrodensis roots samples from the Madonie mountains (Sicily, Italy), while high-throughput-sequencing was carried out in A. nebrodensis roots and in the associated soil. Observations of A. nebrodensis roots r…
Pleurotus eryngii var. thapsiae var. nov. from Sicily
2002
Field investigation in the Sicilian territory allowed the study of Pleurotus eryngii basidiomata growing in association with Thapsia garganica. The evaluation of morphological, ecological, distribution and isozyme, and PCR-RAPD data together with a revision of Bresadola's herbarium specimens kept in the Herbarium Botanische Staatssamlung (M) led to the description of a new variety, Pleurotus eryngii var. tahpsiae var. nov.
Checklist dei funghi italiani Basidiomycetes, Basidiomycota
2005
Il volume contiene l'elenco di 4.198 specie, sottospecie, varietà e forme fungine, segnalate nelle regioni italiane, corredato per ogni entità di fonte nomenclaturale, sinonimi, criticità, endemicità, esoticità, rarità, riferimenti legislativi, distribuzione nelle Regioni e bibliografia, comprendente le fonti delle segnalazioni e nomenclaturali.
Cultivation of some mushrooms species originating from Tunisia and exploration of their valuable metabolites
2017
Mushrooms present interests for consumption as food, as traditional medicine or in bioremediation, due to their nutritional, antioxidant, antimicrobial, therapeutic and enzymatic values. The valorisation of indigenous species of mushrooms requires well characterized collections. Although macrofungi are widespread in Tunisian forests, their diversity and ecology remain generally underexplored which hindered their exploitation. In particular, the in vitro cultivation of the mycelial form could have many advantages: (a) it offers faster growth rates which may have industrial and biotechnological benefits, and (b) will allow better resource management (longer conservation of active forms) and g…