A new species of Solenopsis (Campanulaceae), S. bacchettae from Sardinia (Italy) is described and illustrated. Previously, it was misidentified as S. bivonae, due to its habit and corolla shape, but ...several relevant morphological features allow to distinguish it from the latter. Its morphology, seed coat and pollen micromorphology, ecology, distribution, conservation status and taxonomic relationships are presented.
Salix kaptarae sp. nov. (Salicaceae) from Crete Cambria, Salvatore; Brullo, Cristian; Brullo, Salvatore
Nordic journal of botany,
July 2019, 2019-07-00, 20190701, Letnik:
37, Številka:
7
Journal Article
Recenzirano
A new species of willow from Crete, named Salix kaptarae Cambria, C. Brullo & Brullo, is described and illustrated. Morphologically, it shows close relationships with species belonging to the S. ...apennina group, mainly with respect to the leaf shape, and the hairy ovary, capsule and base of stamina filaments. Considerations on its ecology, leaf micro‐morphology and conservation status are also provided.
Allium valdecallosum is a critical and poorly known species endemic to Morocco. Its diagnostic features, karyology, seed testa micro‐morphology, leaf anatomy, ecology, distribution, conservation ...status, and taxonomic relationships are examined here.
The populations usually attributed to
Solenopsis bivonae
(Tineo) M.B.Crespo, Serra & A.Juan are investigated from a taxonomical and morphological viewpoint. Within this species complex, four new ...subspecies occurring in Sicily and Calabria are recognized, such as subsp. bivonae, subsp. madoniarum, subsp. peloritana and subsp. brutia. In addition, a new species from Cyprus described as
S. meikleana
and
S. bacchettae
from Sardinia must be included in this group. The synonymy, typification, description, seed testa morphology, chorology, ecology, illustrations, conservation status, and examined specimens for each taxon are provided. Besides, the analytical keys, distribution maps, and phytosociological arrangement regarding these taxa are given too.
A syntaxonomical revision of the
class for the Sicilian territory is provided. This syntaxon gathers the ephemeral herbaceous hygrophilous plant communities linked to periodically submerged soils, ...widely distributed in the European, circum-Mediterranean and Macaronesian territories. Within this class, two orders are recognized,
, with a prevalently Mediterranean distribution, and
chiefly occurring in the central-European and Atlantic territories, with scattered and marginal occurrence in the Mediterranean area. The order
in Sicily is represented by four alliances, i.e.,
,
,
and
, while within
three alliances can be recognized, namely
,
and
. Overall, 32 plant communities are recognized, 11 of which are described for the first time. Each higher rank syntaxa and related associations are examined from a nomenclatural, floristic, ecological and chorological point of view. In particular, the associations were processed using cluster analysis in order to highlight the correlations between them. Regarding the floristic aspects, a checklist of the species occurring in the phytosociological relevés is provided, as well as a new combination concerning
, a critical species of the Sicilian flora, is proposed.
Sardinia and Corsica are two Mediterranean islands where the genus
is represented by 11 taxa, 10 out of which are endemic. An integrative approach, using molecular phylogeny, karyology, and seed and ...plant morphometry was used to resolve the complex taxonomy and systematics in this group. We found that several taxa are no longer supported by newly produced data. Accordingly, we describe a new taxonomic hypothesis that only considers five species:
and
, endemic to Corsica, and
,
, and
, endemic to Sardinia.
Thelypteris palustris Schott (Thelypteridaceae), known as “marsh fern”, is infrequent in the Mediterranean area. The occurrence of this species is known for almost all the Italian regions (except for ...Sardinia and Sicily), but with rare and declining populations. During floristic fieldwork on the Sicilian wetlands, a new unknown population was found. The aim of this paper is to analyze the morphological traits of the species, as well as its ecological features and the floristic composition of the plant communities where it lives. According to IUCN guidelines, here we provide the regional assessment (Sicily) of T. palustris. To analyze its morphological features, many living plants were examined, with particular attention to the spore structure. A total of 179 plots (110 species) and 34 pools were sampled. Our results highlight the relic character of the species which is at the southernmost border of its distribution range. The micro-morphological investigations on the spores show that the Sicilian population belongs to the subsp. palustris. The floristic analysis confirms the clear dominance of perennial temperate-cold zones Eurasian taxa. Finally, a new association, Thelypterido palustris-Caricetum paniculatae, within the Caricion gracilis alliance (Phragmito-Magnocaricetea class) is described.
A synthetic and updated overview about the vascular flora and vegetation of the Island of Capo Passero (SE-Sicily) is provided. These data issue from two series of field surveys-the first carried out ...between 1997 and 2000, and the second between 2005 and 2019 and mostly focused on refining and implementing vegetation data. The current islet's flora consists of 269
, of which 149 (58%) are annual plants. The Mediterranean species are largely prevailing, 108 (40%) of which have a strictly Mediterranean biogeographical status. The comparison with a species list published in 1919 and updated in 1957 suggest that, despite the overall prevalence of anemochorous taxa, the vertebrate fauna represents an important vector for the plant colonization of the island, while the immigration of myrmechocorous taxa does not compensate the extinction rate. As many as 202 phytosociological relevés, 191 of which issue from original recent field surveys, enabled identifying 12 different plant communities. The comparison with a vegetation map published in 1965 suggests a strong reduction in dune habitats (2120 and 2210 according to EU 'Habitats' Directive 92/43), as well as a deep disruption in the succession typical of the local psammophilous vegetation series. In order to preserve rare, endangered and protected plant species (such as
,
,
,
,
,
and
) and to stop the ongoing habitat degradation, urgent and effective conservation measures should be adopted for this tiny, yet precious islet.
This paper presents the validation of 16 new associations, described in a previous contribution, for the temporary ponds of the class Isoeto-Nanojuncetea in Apulia (southern Italy).
The conservation actions of endangered plant species require a clear knowledge of their habitats.
Guss. (Urticaceae) is a rare endemic plant species occurring on shady cliffs in the southern-eastern ...part of Sicily. In the last century, the extreme anthropogenic alterations of Hyblaean plateau have caused the continuous and unrestrained fragmentation of natural habitats and consequently the reduction and disappearance of some plant species. A total of 52 vegetation plots, of which 34 are unpublished, were analyzed in order to characterize the floristic composition of the
community. All the relevés were classified using classification and ordination methods. The species is mainly linked to shady and wet rock habitats, and only secondarily colonizes the undergrowth shrubs. According to IUCN criteria, we propose a new risk status for this species and the establishment of a new habitat (92/43CEE) for correct long-term conservation. Finally, a new association,
, which falls within the
alliance (
class), was described. This study can provide useful information for the management and conservation of
.
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