[b][/b]RESEARCHES ON PTERIDOPHYTES FROM VÂLSAN VALLEY PROTECTED AREA (ARGEŞ COUNTY, ROMANIA)
Journal Title: Analele Stiintifice ale Universitatii Alexandru Ioan Cuza din Iasi, Serie noua, Sectiunea II a. Biologie vegetala - Year 2012, Vol 58, Issue 2
Abstract
Long-term observations of pteridophyte populations can reveal how they respond to abiotic and biotic changes in their environment. The research was done in the Vâlsan Valley, Argeş county, in the Vâlsan Valley Natural Reserve and the Vâlsan Valley Protected Natural Area of Community Interest, and it aimed at identifying the pteridophyte populations in the protected area, in order to make up a necessary database meant to monitor their long-term evolution and to establish conservation strategies in the area. Fifty sites with pteridophytes were identified in the researched area. For each site we determined the pteridophyte species, their abundance and the in situ reproduction. In the Vâlsan Valley protected areas there were identified 42.85 % of the Romanian pteridophyte species (without extinct or uncertain species). 36.66% of the pteridophyte species identified are considered sporadic in the Romanian flora. In situ, different stages of reproduction (gametophytes, sporelings and juveniles) were identified in most pteridophytes.
Authors and Affiliations
CODRUŢA DOBRESCU, LILIANA SOARE
THE FESTUCO RUBRAE – AGROSTIETUM CAPILLARIS HORVAT 1951 GENISTETOSUM SAGITTALIS COLDEA 1991 SUBASSOCIATION IN MOLDOVIŢA RIVER’S BASIN (SUCEAVA COUNTY)
This paper presents the Festuco rubrae – Agrostietum capillaris Horvat 1951 genistetosum sagittalis Coldea 1991 subassociation, identified in Moldoviţa River’s basin (Suceava County). On the basis of the analyzed l...
MEADOW ASSOCIATIONS IN VASLUI RIVER BASIN (II)
This study presents two meadow associations in the basin of Vaslui river from classes Molinio-Arrhenatheretea Tx. 1937 em Tx. 1970 (Agrostideto capillaris – Festucetum rupicolae Csürös-Káptalan 64) and, respectivel...
COMPARATIVE ANATOMY OF THE FOLIAR LAMINA IN SOME TAXA OF QUERCUS L. GENUS
This paper presents several aspects regarding the comparative anatomy of the foliar lamina in four species and one hybrid belonging to genus Quercus L., as well as details of the foliar lamina surfaces, with a view to pr...
DROSERA CAPENSIS L.: HISTO-ANATOMY OF THE VEGETATIVE ORGANS
The investigated species (Drosera capensis L. and three forms: D. capensis L. “Alba”, D. capensis L. “Narrow Leaf” and D. capensis L. “Rubra”) show common characters, regarding the structure of the vascular bundles, the...
HISTO-ANATOMICAL DETAILS OF THE OXALIS CORNICULATA L. SPECIES
The authors have investigated the structure of vegetative organs of Oxalis corniculata, an adventive plant in the Romanian flora. The early passage to the secondary structure of the root, the bundle type structure...