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La flora vascolare della penisola del Sinis (Sandregna occidentale)
Full text linkThe vascular flora of Sinis Peninsula (W Sardinia).The vascular flora of Sinis Peninsula
(W Sardinia) has been studied; 760 taxa, 615 of which were species, 134 subspecies, 10 varieties and
1 hybrid were found. They were included in 365 genera and 87 families. The Eudicots were dominant
over the other systematic groups. The most represented families were: Poaceae (99 taxonomic units),
Fabaceae and Asteraceae (85), Caryophyllaceae (33), Apiaceae (27) and Orchidaceae (24). The most
represented genera were: Trifolium (19), Silene (14), Limonium and Medicago (13), Ophrys (12),
Euphorbia and Vicia (10), Plantago (9), Allium (8) and, finally, Lotus, Ranunculus and Vulpia (7).
The contingent of endemics (54 taxonomic units) was 8,97% of the Mediterranean component showing
the dominance of Sardinian-Corsican (33,33%) and in the second place Sardinian elements (24,10%),
that together to reach 57,43% of the total. This flora consisted of 31 species, 17 subspecies and 6
varieties; 38 genera and 22 families were recognized. The most represented families were:
Plumbaginaceae (10), Asteraceae and Lamiaceae (5), Fabaceae (4), Alliaceae, Euphorbiaceae and
Ranunculaceae (3). The most represented genera were: Limonium (10) and Allium, Delphinium,
Euphorbia, Scrophularia, Silene, Teucrium (2). Based on the taxa present in the regional Italian Red
List, the species exclusive of Sardinia and important for the conservation has been included. For
these species we proposed the news categories of preservation following the IUCN criteria. Our
analysis, confirmed the presence of 12 taxa critically endangered as well as this group included the
majority of exclusive endemism of the territory. According to the geomorphological, geological and
bioclimatic data of the territories studied within the floristic analysis and in particular the endemic
and phytogeographical component, we proposed the creation of new biogeographic subsector named Sinisico
FIGURE 2. A. Sepals. B. Petals. C. Stamens and pistils. D in A new species of Aquilegia (Ranunculaceae) from Sardinia (Italy)
No full textFIGURE 2. A. Sepals. B. Petals. C. Stamens and pistils. D. Anther; E. Staminodes. F. Staminodes and pistils. G. Pistil. H. Stigma. I. Follicles. J. Seed. Illustration by Salvatore Brullo based on Bacchetta, Fenu & Mattana s.n. (CAT).Published as part of Bacchetta, Gianluigi, Brullo, Salvatore, Congiu, Angelino, Fenu, Giuseppe, Garrido, José Luis & Mattana, Efisio, 2012, A new species of Aquilegia (Ranunculaceae) from Sardinia (Italy), pp. 59-64 in Phytotaxa 56 (1) on page 62, DOI: 10.11646/phytotaxa.56.1.9, http://zenodo.org/record/506127
Ecological features and conservation status of Helianthemum caput-felis at the periphery of its distribution range.
No full textSchede per una lista rossa della flora vascolare e crittogamica italiana: Herniaria latifolia Lapeyr. subsp. litardierei Gamisans
No full textRegional responsibility for plant conservation: The 2010 GSPC Target 8 in Sardinia
No full textThe collections stored at the Sardinian Germplasm Bank (BG-SAR) were analysed to verify if setting conservation priorities
on the exclusive endemic flora of Sardinia (Italy) would make it possible to reach the 2010 GSPC Target 8. By 2010, 39.9%
of the exclusive-endemics of Sardinia, 43.1% of the BGCI European threatened species and 65.0% of the taxa listed in
Annex II of DIR 92/43/EEC present on the island had been stored in BG-SAR. Of the stored plants, 40% of those listed in
the DIR 92/43/EEC, and only 25.69% of the BGCI threatened plants are represented by an adequate number of
populations. For a few of the stored threatened plants (ca. 36%), and for 60% of the DIR 92/43/EEC ones, at least one
seedlot with more than 5000 seeds is available. These data indicate that focusing on exclusive endemics gave a substantial,
although not decisive, contribution towards the achievement of the 2010 GSPC Target 8 in Sardinia, and that more efforts
are needed to guarantee the effective long-term conservation of these threatened taxa with the aim of reaching the 2020
GSPC target
Schede per una Lista Rossa della Flora vascolare e crittogamica Italiana: Herniaria litardierei (Gamisans) Greuter et Burdet
No full textAnalisi dello stato di conservazione di Dianthus morisianus Vals., endemita esclusivo dell’ecosistema dunale di Portixeddu (Sardegna sud-occidentale)
No full textHereby are presented the results of a detailed research carried out on Dianthus
morisianus Vals. (Caryophyllaceae), species included in the priority list of the 10 most
endangered taxa in Sardinia.
This species is particularly threatened by its habitat reduction and fragmentation,
mainly due to anthropic activities and to intrinsic factors related to its reproductive
biology. For these reasons, it is considered to be Critically Endangered according to the
IUCN protocols. Despite the many threats which insist on the population, there still have
not been taken any conservation actions or protection measures.
The aim of this study was to increase knowledge on the biology, ecology, structure
and evolutionary trends of such population, in order to identify appropriate conservation
strategies. The study has therefore provided the integration of in situ analysis concerning the
distribution of the species and its population and the ecological aspects and ex situ analysis
concerning the reproductive biology of such species and its germination ecophysiology.
The data obtained confirm the critical situation of D. morisianus due to anthropic
threats and to its reproductive difficulties. Therefore, it is vital to pursue and implement
studies to identify effective conservation actions for the species
Phenological patterns, seed output and fruit parasitism of Dianthus morisianus Vals., a narrow endemic species of SW Sardinia
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