Search results for "Botanica"
showing 10 items of 1665 documents
An Updated Checklist of the Genus Capparis L. (Capparaceae) in Vietnam, including a New Species from Hon Tre Island
2022
The Indochinese Peninsula is a main center of speciation of Capparis, but the taxonomic treatment of the genus is still critical in this area. With regard to Vietnam, a discordant number of species was recorded by different authors during the last century, whereas various new species have been recently described. An updated checklist of the intrageneric taxa occurring in the country is here presented, including a new species from the island of Hon Tre, Khanh Hoa Province. The genus comprises in Vietnam 37 species, 9 subspecies and 3 varieties, all belonging to Capparis sect. Monostichocalyx. The study area, with 10 endemic species, is confirmed as one of the hotspots of the genus. Three lec…
PRIMI DATI SUGLI INNESTI DI ABIES NEBRODENSIS (LOJAC.) MATTEI ESEGUITI SU ABETI ESOTICI NELL’AREA DI INDIGENATO (MADONIE)
2012
C2 = PRIMI DATI SUGLI INNESTI DI ABIES NEBRODENSIS (LOJAC.) MATTEI ESEGUITI SU ABETI ESOTICI NELL’AREA DI INDIGENATO (MADONIE) R. SCHICCHI, P. BONOMO, M. CANDORE, G. DI NOTO, A. PUCCI, F. TRAPANI, P. MARINO Dipartimento di Biologia Ambientale e Biodiversità dell'Università, via Archirafi 38, 90123 Palermo (I) rosario.schicchi@unipa.it Abies nebrodensis è una specie endemica relitta, gravemente minacciata di estinzione, la cui popolazione naturale è costituita da 30 individui distribuiti discontinuamente in una piccola area del territorio di Polizzi Generosa, all’interno del Parco naturale delle Madonie in Sicilia. La minaccia di estinzione è dovuta, oltre all'esiguità della popolazione, al …
Un Abete da salvare
2014
Nel Parco delle Madonie, tra le montagne di Polizzi Generosa, trovano rifugio gli ultimin esemplari di Abies nebrodensis, una delle specie forestali più antiche della Sicilia. Il documentario "Un Abete da salvare" ripercorre la storia dell'unico Abete siciliano attraverso gli interventi effettuati per scongiurarne l'estinzione.
Alien macrophytes in the Mediterranean Sea: an overview
2019
The Mediterranean Sea, one of the most complex marine ecosystems, is inhabited by a rich and diverse biota which is disproportionate to its dimensions. Such high species richness makes the Mediterranean Sea a true hotspot of biodiversity. However, the Mediterranean Sea is amongst the most impacted regional sea areas, due to increasing levels of threats, mainly driven by human activities such as climate change and the introduction of non-indigenous species (NIS, i.e. organisms introduced outside of their natural, past or present, range and outside of their natural dispersal potential). NIS may in time become invasive (i.e. invasive alien species (IAS)) with severe impacts on biodiversity and…
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.
Allium cithaeronis (Alliaceae), a new species of A. sect. Scorodon from Greece.
2011
Allium cithaeronis, a new species of A. sect. Scorodon from Greece is described and illustrated. Its chromosome number (2n=16), karyogram, leaf anatomy, ecology, taxonomical relationship are examined. For some morphological features, such as exerted stamens from perigon and tuberculate lobes in the upper part of the ovary,it represents a very isolated species within the A. sect. Scorodon.
Analisi molecolare e filogenesi delle specie a fioritura tardiva del genere Allium (Alliaceae)
2014
Questo contributo presenta i risultati di uno studio di filogenesi molecolare sulla sez. Codonoprasum, con particolare riferimento alle specie a fioritura autunnale. Per confronto sono state inserite le specie a fioritura tardiva di altri sottogeneri e sezioni, insieme ad altri taxa non tardivi della sez. Codonoprasum e di altre sezioni filogeneticamente più affini. Le analisi sono state svolte con marcatori nucleari (ITS) e plastidiali (trnL-trnF, trnH-psbA) su un totale di 66 accessioni, utilizzano i metodi di massima parsimonia e inferenza bayesiana.
Disegni botanici di Angelina Damiani Lanza (1879 - 1936)
2017
Botanical drawings of Angelina Damiani Lanza (1879 - 1936). The drawings of Sicilian plants made by Ange- lina Damiani are reported and commented. After a brief presentation of the author’s personality, the technique used in the drawings is examined, together with the relevant value from the artistic and botanical point of view. This material, mainly consisting of pencil drawings gathered in an album recently donated to the Director of the Palermo Botanical Garden, sin- ce 2006 is exhibited in the small historical museum set up in one of the halls of the monumental Gymnasium of the same Botanical Garden. Most of the drawings done by Angelina Damiani for the studies of her husband, the Sicil…
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
Steccherinum straminellum, a new record for Italy
2012
The first Italian record of Steccherinum straminellum is reported from Sicily. This collection represents the first record on wood of broadleaved trees. A description and line drawing of the species based on the Sicilian specimens are provided along with notes on the taxonomy, ecology, and distribution of this rare taxon.