Search results for "bryophyte"
showing 10 items of 114 documents
Riella cossoniana Trab. (Riellaceae, Marchantiophyta) new to France
2014
Riella (Riellaceae, Sphaerocarpales) is a genus of aquatic liverworts with disjunct range in areas of Mediterranean-type climates. Riella has been traditionally subdivided into two subgenera, subgenus Riella, whose plants show smooth or papillose female involucres and Trabutiella, whose plants show winged female involucres. To date only three species of Riella are known in France, all belonging to subgenus Riella. During the course of a study of the plant diversity of temporary brackish ponds in the Camargue area (Southern France), soil sediments were collected from 10 localities and cultivated in the laboratory. From cultures of five of these localities emerged dioicous plants of Riella sh…
Riella bialata Trab. (Riellaceae, Marchantiophyta): A new addition to the European liverwort flora
2013
[EN] Riella (Riellaceae, Sphaerocarpales) is a genus of aquatic liverworts with a disjunct worldwide distribution in areas of seasonal Mediterranean-type climates. Its centre of diversity is located in the Mediterranean basin, where about half the species number of the genus is concentrated. In the course of a worldwide revision of the genus Riella, plants from a monoicous species with wingless, not papillose and smooth involucres were found in two distant Iberian localities. These plants showed a geminate dorsal wing, unlike the single wing occurring in the remaining species of the genus. This character unambiguously assigns these populations to R. bialata, a species known to date from a s…
Four Remarkable Additions to the Biodiversity of Chinese Mosses
2022
Four species of moss genus Schistidium are reported for the first time from China. All of them have been found in the Xinjiang Uyghur Autonomous Region. Ecological and distributional details of the newly recorded species are provided and their local distribution is mapped. Photographs of the species are attached. Checklist of Schistidium species and identifying key are added. Considering the present records, Schistidium consists of 15 species in China.
Impact of trace metals from past mining on the aquatic ecosystem: a multi-proxy approach in the Morvan (France).
2014
10 pages; International audience; This study seeks to determine to what extent trace metals resulting from past mining activities are transferred to the aquatic ecosystem, and whether such trace metals still exert deleterious effects on biota. Concentrations of Cd, Cu, Pb and Zn were measured in streambed sediments, transplanted bryophytes and wild brown trout. This study was conducted at two scales: (i) the entire Morvan Regional Nature Park and (ii) three small watersheds selected for their degree of contamination, based on the presence or absence of past mining sites. The overall quality of streambed sediments was assessed using Sediment Quality Indices (SQIs). According to these standar…
Bryophyte investigations in urban areas: diversity of bryoflora of Erice town.
2016
This work is part of a study of bryophyte floras of Sicilian towns that has highlighted the presence in these environments of interesting taxa from the taxonomic and phytogeographical point of view (1, 2, 3, 4). Given its location, perched at 750 m a.s.l. on the S. Giuliano Mount at the northwestern tip of Sicily, the town of Erice has a climate which, although typically Mediterranean, has a strong wet connotation for the frequent presence of fog, especially in the winter time. These features contribute to creating conditions particularly suited to host bryophytes that grow both on artifacts and on phorophytes present in the city and specially in the Balio urban park. The study has allowed …
Introduction to the study of the bryological flora of the Batumi Botanical Garden (Georgia)
2021
A preliminary list of 22 bryophytes growing in the Batumi Botanical garden is provided. From chorological point of view, temperate and boreo-temperate taxa prevail while with regard to ecological behaviour, mesophilous taxa are the most numerous and with respect to light requirements equivalently sciaphilous and eliophilous taxa are represented. The mosses Fissidens dubius and Cyrtomnium hymenophylloides are recorded for the first time in Georgia.
Bryophytes collected during the fifth “Iter Mediterraneum” in Morocco, 8-27 June, 1992.
2013
Bryophyte diversity in some Sicilian protected areas
2017
The results of some investigations carried out in two Sicilian protected areas characterized by chalky reliefs are reported. These are the Serre di Ciminna and Monte Conca reserves. The Oriented Nature Reserve of Serre di Ciminna is located in northwestern Sicily, in the province of Palermo. Established in 1997 to protect the interesting karst phenomena in a vast macro-crystalline gypsum outcrop of the Messinian age, the series of "collapse valleys" and a swallowtail, the reserve falls within the Rocche di Ciminna, Site of Community Importance (SIC) (code ITA 020024). It includes some habitats of Community interest: pseudo-steppes with grasses and annuals of the Thero-Brachypodietea (code 6…
Survey of the bryophyte diversity of the Carnic Alps, including some interesting records for the Italian bryoflora
2010
Syntrichia echinata (Schiffn.)Herrnst. & Ben-Sasson (Pottiaceae, Bryopsida) new to Italy.
2006
Syntrichia echinata (Schiffn.) Herrnst. & Ben-Sasson, previously known in Europe only from Crete and Greece, is reported for the first time in Italy. It has been collected at Rocca Busambra in northern Sicily. Besides Europe, this Mediterranean montane species is distributed in south-western Asia in Cyprus, Turkey, Israel, Jordan and Lebanon. The principal distinctive characters that separate it from S. papillosissima (Copp.) Loeske and S. minor (Bizot) M. T. Gallego, J. Guerra, M. J. Cano, Ros & M. C. Sánchez-Moya are discussed.