@article {213,
	title = {Unraveling the taxonomy and nomenclature of the Isoetes histrix Bory species complex (Isoetaceae, Lycopodiidae)},
	journal = {Turkish Journal of Botany},
	volume = {39},
	year = {2015},
	pages = {383-387},
	abstract = {Based on study of the lectotype of Cephaloceraton gymnocarpum Gennari, megaspore ornamentation, and chromosome number analysis of specimens from different Mediterranean areas, it is shown here that Isoetes gymnocarpa (Gennari) A.Braun is a species endemic to Sardinia, Central Italy, Corsica, and Baleares, different from the Mediterranean I. histrix Bory and from the mainly CE Mediterranean I. sicula Tod. (= I. subinermis (Gennari) Cesca \& Peruzzi)},
	author = {Bagella, S. and Peruzzi, L. and Caria, M.C. and Filigheddu R.}
}
@article {26,
	title = {Different spore structures in sympatric Isoetes histrix populations and their relationship with gross morphology, chromosome number, and ribosomal nuclear ITS sequences},
	journal = {Flora: Morphology, Distribution, Functional Ecology of Plants},
	volume = {206},
	year = {2011},
	note = {Cited By (since 1996):3Export Date: 11 November 2013Source: Scopus},
	month = {2011///},
	pages = {451 - 457},
	abstract = {Traditionally, megaspores have supplied the most relevant character for the taxonomy of Isoetes at several systematic levels, including discriminant features usually used in species identification and diagnosis. Isoetes histrix Bory is a terrestrial circum-Mediterranean quillwort characterized by dark, shiny, and persistent phyllopodia with megaspore sporangia completely covered by a velum and tuberculate megaspores. Specimens of this species from Sardinian temporary wetlands showed the sympatric presence of two kinds of individuals with correlated variation in size, ornamentation, and radial ridges of megaspores, and in ornamentation of microspores. However, they showed the same diploid chromosome number (2 n = 20), ITS ribotype, and macromorphological feature. No intermediate individuals, showing mixed characters of each spore types as well as malformed or aborted spores have been detected. These results suggest that the gene flow between both kinds of I. histrix plants is heavily restricted, if not limited at all. On the basis of the cytogenetic and molecular uniformity detected in I. histrix in this study, genomic incompatibilities do not seem to be the main reasons involved in the maintenance of the two kinds of I. histrix individuals. Prezygotic barriers involving changes in phenology (e.g. spore maturation) or differential gamete dispersal should be further assessed to gain insights in this topic. The presence of two kinds of individuals in I. histrix differing in significant spore features used in quillwort taxonomy, whatsoever the causes involved in its origin, could be the basis of an incipient differentiation process upon which selective pressures could ultimately lead to speciation. {\textcopyright} 2011 Elsevier GmbH.},
	keywords = {Cytogenetics, Mediterranean flora, Sardinia, Spore polymorphism, Temporary wetlands, Terrestrial quillworts},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79955026583\&partnerID=40\&md5=cc4ef9c47908223cfba861b4cbb6dda0},
	author = {Bagella, S. and Caria, M.C. and Molins, A. and Rossell{\'o}, J.A.}
}
@article {9,
	title = {Sensitivity of ephemeral wetland swards with Isoetes histrix Bory to environmental variables: Implications for the conservation of Mediterranean temporary ponds},
	journal = {Aquatic Conservation: Marine and Freshwater Ecosystems},
	volume = {23},
	year = {2013},
	note = {Export Date: 11 November 2013Source: Scopus},
	month = {2013///},
	pages = {277 - 290},
	abstract = {Small-scale landscape elements such as freshwater ponds and pools remain poorly characterized and vulnerable to destruction, despite their significant contribution to regional aquatic biodiversity. Ephemeral wetland swards supporting Isoetes histrix, which are considered priority interest habitats by the European Habitats Directive on the conservation of wild fauna and flora (codex 3170* - Mediterranean temporary ponds), typify concave pond shorelines (Habitat A) and very shallow flat temporary ponds (Habitat B). It is hypothesized that although this sward type is highly specialized for growth in waterlogged soils, it is highly sensitive to changes in composition and seasonal dynamics related to varied environmental conditions. The present study was aimed at comparing plant assemblages, and successional processes and dynamics during the growing season between different habitat types; and identifying the key factors influencing spatial variability. Vegetation was sampled three times during the growing season in the two habitat types (i.e A and B). At each site a range of environmental variables was also recorded. PERMANOVA analysis indicated that plant assemblages differed between the two habitat types throughout the growing season. The different hydroperiod length was the main factor responsible for the specificity of the two habitats, revealed by CCA. However, the pattern of successional processes and seasonal dynamics was similar between the two habitats. The results confirmed the hypothesis, and strengthened the understanding of the relevance of hydroperiod length to plant assemblages in ephemeral ponds. The two habitats exhibit unique characteristics, and represent different aspects of priority habitat 3170*; therefore, to ensure that the highest level of biodiversity is maintained, measures must be taken to protect both sward habitats. {\textcopyright} 2012 John Wiley \& Sons, Ltd.},
	keywords = {Biodiversity, Drought, Habitat management, Habitats directive, Vegetation, Wetlands},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84876416806\&partnerID=40\&md5=33df98f00634e6a39ea2b422ff6f78de},
	author = {Bagella, S. and Caria, M.C.}
}
