Briófitos de los yesos de la Comunidad Valenciana (este de España)

En este trabajo se estudia la flora briológica de los principales afloramientos yesíferos de la Comunidad Valenciana. Se ha elaborado un catálogo de 66 táxones, algunos de ellos poco citados hasta ahora en nuestro territorio. Se incluyen datos sobre las características del suelo (CE, pH y concentraciones de Mg+2,Ca+2,Na+, K+).In this work, the bryophyte flora of gypsiferous soils in Valencia region (eastern Spain) is studied. A list of 66 taxa is given. Soil characteristics (CE, pH and concentrations of Mg+2,Ca+2,Na+, K+) are included

Contribución a la brioflora de la Sierra Palominta

A check-list of the 133 bryophytic taxa found in Sierra Palomita is presented. Twenty four taxa are new to Teruel, and Seligeria calcarea (Hedw.) Br. Eur. is new to the iberian peninsula.Se ha elaborado un catalogo de 133 taxones briofíticos hallados en la Sierra Palomita; de ellos. 24 son nuevos para la provincia de Teruel y una especie, Seligeria calcarea (Hedw.) Br. Eur., es nueva para la península ibérica

Flora briològica i pteridològica

Es comenten les característiques de les flores briltlògiques i pteridològiques de l'arxipèlag de Cabrera. Hom coneix actualment 24 espècies de briòfites ( 21 molses i 3 hepàtiques) i 8 espècies de falgueres, les quals presenten, en general, una ampla distribució a la resta de Balears. Els briòfits Rhynchostegiella tenella (Dicks.) Limpr. i Scorpiurium circinatum (Brid.) Fleish & Loeske són novetat per Cabrera.The known bryophyte flora of Cabrera island has 24 species (21 mosses and 3 liverworts), two of which Rhynchostegiella tenella (Dicks.) Limpr. and Scorpiurium circinatum (Brid.) Fleish & Loeske are new additions. On the other hand, only 8 pteridophyte species are recorded from Cabrera. Both, bryophyte and pteridophyte species, are well recorded from other Balearic islands

Contribución al estudio de Orthotrichum Baldaccii y O. Sardagnanum (Musci)

Se realiza un estudio al MEB de la superficie foliar, estomas capsulares, dientes del peristoma y esporas de Orthotrichu^ cupulatu^ var. sardagnanu^ y 0. cupulatu^ v.ar. baldaccii. En base a este estudio se propone un nuevo estatus: Orthotrichus.cupulatu^ subsp. baldaccii.A Scanning Electron Microscope (SEM) study of leaf surface, capsule stomata, peristome teeth and spores of Orthotrichu^ cupulatu^ var. sardagnanu^ and O. cupulatu^ var. baldaccii is made. On this ground, we propose a new status for the last taxon: Orthotrichu^ cupulatu^ subsp. baldaccii

"Bryum dunense" Smith & Whitehouse en la Península Ibérica y Baleares. Observaciones taxonómicas, corológicas y fitosociológicas

Nota sobre la corología, ecología y comportamiento fitosociológico de Bryum dunense Smith E Whitehouse en la Peninsula Ibérica y Baleares. Se recogen varias localidades del este y sur de España y dos de las costas de Portugal. Se describe una nueva comunidad arenícola de la cual forma parte Bryum dunense: Tortello flavovirentis-Bryetum dunensis (Barbuletea unguiculatae)Note on the chorology, ecology and phytosociological behaviour of Bryum dunense Smith E Whitehouse in the Iberian Península and Baleares. Several new localities from Western and Southern Spain and two from Portugal are recorded. A new arenicolous community with Bryum dunense: Tortello flavovirentis-Bryetum dunensis (Barbuletea unguiculatae), is described

Contribución al conocimiento de la brioflora de las simas valencianas

Se da a conocer la bioflora recolectada en 21 simas valencianas, en cuyo interior se han llegado a identificar 33 táxones (7 hepáticas y 26 musgos) de los cuales Anomodon attenuatus (Hedw.) Hub, Cololejeunea rossettiana (Mass.) Schiffn., Eurhynchium praelongum (Hedw.) B.S.G. var. stokesii (Turn.) Dix., Homalia lusitanica Schimp. y Taxiphyllum wissgrillii (Garov.) Wijk. & Marg. son nuevos para la región valenciana. Asimismo se comentan algunos aspectos ecológicos de las simas y los briófitos estudiados.The collected bryoflora in 21 potholes of Valencia region (Spain) is brought to light here, 33 taxa (7 liveworts and 26 mosses) are indicated in them; some of these taxa: Anomodon attenuatus (Hedw.) Hub, Cololejeunea rossettiana (Mass.) schffn., Eurhynchium praelongum (Hedw.) B.S.G. var. stokesii (Turn.) Dix., Homalia lusitanica Schimp. and Taxiphyllum wissgrillii (Garov.) Wijk. & Marg. are new to Valencia region. Also some ecological aspects of the potholes and the bryophytes studied are [email protected] ; [email protected]

The bryophyte flora of the city of Valencia (Eastern Spain)

Bryophytes constitute an important part of the unmanaged plant diversity of urban areas, however, it is generally overlooked and poorly understood. In this study, we investigate the urban bryoflora of Valencia, the third most important Spanish city. A total of 1,178 bryophyte samples from 94 sampling sites were identified rendering 102 taxa, 96 mosses and 6 liverworts. Despite the high overall taxon richness, the number of taxa per locality was rather low, 12.53±8.06. The sites that harbored the highest taxon richness were those with a variety of natural, old and relatively unmanaged substrates such as the Botanical Garden, Viveros Garden and the Turia River Garden. The high species richness shown in our study may relate to a combination of factors, including the diversity of habitats represented, the sampling intensity and the recentness of this study. This study adds 18 taxa new to the Spanish urban bryoflora, one species new to the Valencian Community and other five new to both, the Spanish urban bryoflora and the Valencian Community

An eco-physiological and biotechnological approach to conservation of the world-wide rare and endangered aquatic liverwort Riella helicophylla (Bory et Mont.) Mont.

The rare aquatic liverwort Riella helicophylla (Bory et Mont.) Mont., inhabitant of temporary shallow ponds around the Mediterranean basin, is considered threatened throughout its distribution range. In addition, little is known of its biology and ecology or of its role in such an important ecosystem where environmental conditions vary yearly in unpredictable ways. In these variable habitats, due to the seasonal fluctuation of water levels, there is no guarantee of yearly spore input into the spore bank. Spore germination rate and the effects of different culture media in an axenic culture establishment, as well as propagation procedures of R. helicophylla, were tested. New insights into the ecology and biology of R. helicophylla are given. Spore dormancy is documented, and the protocols for the in vitro culture establishment, propagation and acclimatization of this liverwort are developed. Dry storage at 20 ± 2 °C for about three months broke the dormancy of spores, which subsequently germinated in a high percentage (over 90%). A two phase (solid and liquid) culture media system was developed for the purpose of achieving fully developed gametophytes. The liquid phase contained electrolytes simulating brackish water

Localizadas en Antequera (Málaga) las primeras poblaciones para Europa continental de la hepática mundialmente rara, Riella affinis

Riella Mont. es un género de plantas acuáticas talosas, con unas características morfológicas y ecológicas muy singulares que las hacen destacar sobre el conjunto de las hepáticas. Una de sus peculiaridades es que crecen sumergidas en aguas dulces y salobres, principalmente en lagunas temporales de zonas áridas o semiáridas, aunque también lo hacen en arroyos someros y de forma más rara en lagos permanentes. Las lagunas temporales, su principal hábitat, son humedales con una fase seca recurrente que, en la región Mediterránea, suele coincidir con el verano

World checklist of hornworts and liverworts

A working checklist of accepted taxa worldwide is vital in achieving the goal of developing an online flora of all known plants by 2020 as part of the Global Strategy for Plant Conservation. We here present the first-ever worldwide checklist for liverworts (Marchantiophyta) and hornworts (Anthocerotophyta) that includes 7486 species in 398 genera representing 92 families from the two phyla. The checklist has far reaching implications and applications, including providing a valuable tool for taxonomists and systematists, analyzing phytogeographic and diversity patterns, aiding in the assessment of floristic and taxonomic knowledge, and identifying geographical gaps in our understanding of the global liverwort and hornwort flora. The checklist is derived from a working data set centralizing nomenclature, taxonomy and geography on a global scale. Prior to this effort a lack of centralization has been a major impediment for the study and analysis of species richness, conservation and systematic research at both regional and global scales. The success of this checklist, initiated in 2008, has been underpinned by its community approach involving taxonomic specialists working towards a consensus on taxonomy, nomenclature and distribution