About the occurrence of Elatine macropoda and E. gussonei (Elatinaceae) in Sicily and lectotypification of their names (original) (raw)
Related papers
A Comparitive Study between Elatine gussonei ( from Malta ) and Elatine macropoda ( from Majorca )
2006
This study compared differences between the closely related Elatine macropoda Gussone and Elatine gussonei (Sommier) Brullo, Lanfranco, Pavone & Ronsisvalle as published in literature to differences between the two species as observed in the wild and in vitro. Literature indicated that main characteristics of E. gussonei that distinguish it from E. macropoda are its pink flowers, petal size equal to sepal’s and its strongly curved seed. However observations in the field showed that environmental conditions as well as flowering stage significantly change the appearance of the flowers of both species. Mean seed curvature was shown to be significantly different between the species and unaffected by environmental factors. However the range of seed curvature in both species is wide and overlaps each other, thus also making seed curvature an unreliable diagnostic feature.
Acta Botanica Croatica, 2014
Elatine gussonei (Sommier) Brullo is an endemic species, with a distribution restricted to the central part of the Mediterranean Basin (Maltese islands, Lampedusa, southern part of Sicily). This hydrophyte grows in rainwater pools and cavities in karstic limestone. Although the morphology has been well studied, no karyological study has been carried out, and hence this work brings the first chromosome data for the Maltese-pelago endemic E. gussonei.We have found a diploid number of 54 chromosomes in E. gussonei, which differs from the chromosome number of most of Elatine species (2n = 36). Additionally, this account gives a recent distribution of the species on the Maltese islands.
2020
According to the most recent floristic and taxonomic works, Eleocharis palustris (L.) Roem. et Schult. is present in Europe with two subspecies: E. palustris subsp. palustris and E. palustris subsp. waltersii Bures et Danihelka. Up to now in Italy only the first taxon has been reported in literature, and no specific study was recently carried out to assess the presence of both subspecies on the Italian territory. Accordingly, we conducted a comprehensive analyses of Italian herbarium specimens of E. palustris in order to verify presence and distribution of its subspecies in Italy. Towards these aims we collected a wide set of morphological (glume length and number per cm; spikelet length, culm width, achene length and width, stylopode length and width) and anatomical characters (stomata length) and evaluated their contribution to the differentiation of the two subspecies adopting a classification tree analyses. The analyses lead us to report for the first time in Italy E. palustri s...
PeerJ, 2016
The genus Elatine contains ca 25 species, all of which are small, herbaceous annuals distributed in ephemeral waters on both hemispheres. However, due to a high degree of morphological variability (as a consequence of their amphibious life-style), the taxonomy of this genus remains controversial. Thus, to fill this gap in knowledge, we present a detailed molecular phylogenetic study of this genus based on nuclear (rITS) and plastid (accD-psaI, psbJ-petA, ycf6-psbM-trnD) sequences using 27 samples from 13 species. On the basis of this phylogenetic analysis, we provide a solid phylogenetic background for the modern taxonomy of the European members of the genus. Traditionally accepted sections of this tree (i.e., Crypta and Elatinella) were found to be monophyletic; only E. borchoni-found to be a basal member of the genus-has to be excluded from the latter lineage to achieve monophyly. A number of taxonomic conclusions can also be drawn: E. hexandra, a high-ploid species, is most likel...
Webbia, 2010
Eleocharis R. Br. (Cyperaceae) is a nearly cosmopolitan genus of ca. 200 species . According to Conti et al. (2005) ten taxa are native in Italy: Eleocharis acicularis (L.) Roem. & Schult., E. carniolica W.D.J. Koch, E. mamillata (H. Lindb.) H. Lindb. subsp. austriaca (Hayek) Strandh. and subsp. mamillata, E. multicaulis (Sm.) Desv., E. ovata (Roth) Roem. & Schult., E. palustris (L.) Roem. & Schult., E. parvula (Roem. & Schult.) Palla, E. quinqueflora (Hartm.) O. Schwarz, and E. uniglumis Schult. Four additional species are locally naturalised (Conti et al., 2005; Celesti-Grapow et al., 2009): Eleocharis atropurpurea (Retz.) Kunth, E. flavescens (Poir.) Urb., E. geniculata (L.) Roem. & Schult. 1 and E. obtusa (Willd.) Schult., mostly as weeds of rice.
Natural History Sciences
Eleocharis mamillata subsp. austriaca belongs to Eleocharis subser. Eleocharis. The presence of this entity in the Italian territory was known for almost all the Alpine administrative regions and for Calabria. According to the Portal to the Flora of Italy, this entity was reported for Piedmont based on erroneous records. Nevertheless, during a wide herbarium survey on the subseries Eleocharis, several old and recent specimens collected in Piedmont have been identified as Eleocharis mamillata subsp. austriaca. Therefore, we can confirm the presence of the taxon in this region and provide a distribution map on the basis of the analysed material.
First record for the flora of Italy and lectotypification of the name Linum elegans (Linaceae)
Phytotaxa, 2017
Linum elegans has been detected in calcareous rocky garrigues on the Gargano promontory (Apulia, SE-Italy), representing the first record for the Italian flora and the first one outside the Balkan Peninsula. The geographical disjunction may provide evidence for past amphi-Adriatic/amphi-Ionic terrestrial connections. The population found was ascribed to L. campanulatum in the past. As a consequence, a comparison between these two species is undertaken. Furthermore, the name L. elegans is here lectotypified on a specimen preserved at G, and the IUCN assessment of the species in Italy is briefly discussed.
Typification and seed morphology of Elatine hungarica (Elatinaceae)
Biologia, 2013
A lectotype of the name Elatine hungarica Moesz is designated from Kitaibel’s specimens held in the Hungarian Natural HistoryMuseum in Budapest (BP). Morphological features of seeds of E. hungarica compared with those of the other European taxa of section Elatinella with tetramerous flowers (E. hydropiper, E. gussonei, E. macropoda, E. orthosperma) are provided.
Italian Botanist, 2023
The results of the annual excursion of the Working Group for Vegetation Science of the Italian Botanical Society, held in the Egadi Islands, Mount San Giuliano and Mount Cofano (W Sicily) on April 23-27 2022, are presented. This paper includes: (1) general information on the visited sites; (2) geology and geomorphology; (3) climatology and bioclimatology with tables of climatic data; (4) description of the following five geobotanical itineraries-accompanied by 29 original vegetation relevés and 11 synthetic relevés, proceeding from different bibliographic references: (a) Mount San Giuliano; (b) Marettimo Island: coastal and subcoastal stretch of the southern part, between Punta Bassana and Contrada Chiappera; (c) Marettimo Island: Case Romane, Mount Pizzo Falcone and the northwestern coastal stretch; (d) Island of Levanzo; (e) Mount Cofano-with catenal pictograms of the vegetation, surveys and description of the plant communities and related syntaxonomic scheme; (5) list of the surveyed plant taxa, collected specimens and herbaria in which they are deposited. A new syntaxon is also described (Catapodio pauciflori-Moraeetum sisyrinchii ass. nova), referring to an ephemeral dry grassland located along the northwestern coastal stretch of Marettimo. The new association is framed in the Plantagini-Catapodion balearici, alliance of the Stipo-Bupleuretalia semicompositi order of the class Stipo-Trachynietea distachyae (order Stipo-Bupleuretalia semicompositi, alliance Plantagini-Catapodion balearici). An original synoptic table, regarding 17 different plant communities with high frequency of Moraea sisyrinchium, provides a comparative framework of the new association with allied vegetation units so far described throughout the Mediterranean region. Syntaxonomical and nomenclatural remarks regarding the Mediterranean vegetation occurring in this territory are also given throughout the text. Some floristic updates for the study sites are also reported, including the discovery for the first time in Sicily of Lysimachia loeflingii.