Liens entre chorologie et diff�renciation de quelques associations du Mesobromion erecti d'Europe occidentale et centrale

Vegetatio ◽  
1985 ◽  
Vol 59 (1-3) ◽  
pp. 85-96 ◽  
Author(s):  
M. Royer
Keyword(s):  
Mesobromion Erecti

Geographical separation of diploid and triploid cytotypes of Allium scorodoprasum in Lithuania

Biologia ◽  
2013 ◽  
Vol 68 (4) ◽  
Author(s):  
Birutė Karpavičienė
Keyword(s):  
Environmental Variables ◽  
Somatic Chromosome ◽  
Forest Edges ◽  
Ecological Distribution ◽  
Geographical Separation ◽  
Allium Scorodoprasum ◽  
High Level ◽  
Mesobromion Erecti ◽  
River Valleys ◽  
Somatic Chromosome Numbers

AbstractThe aim of this study was to determine the geographical and ecological distribution of Allium scorodoprasum cytotypes in Lithuania. 46 populations were studied: environmental variables were recorded and somatic chromosome numbers of 797 individuals from all populations were assessed. Diploids were found in 13 populations in the northern part of the study area, while triploids occurred in 33 populations from the western part of Lithuania. A. scorodoprasum frequently occurred in river valleys, particularly in the rarely flooded high level floodplains or on lower terraces. Only one population was recorded in Alno-Ulmion forest and three on the Glechometalia hederaceae forest edges, while 42 populations occurred in mesophilous or semidry Arrhenatheretalia elatioris, Mesobromion erecti and Trifolio-Geranietea sanguinei grasslands. No distinct differences in relative frequencies of diploid and triploid cytotypes in different plant communities were found whereas the soil chemical composition between the habitats of both cytotypes differed statistically. These differences however were indicative of the geographical separation of habitats rather than ecological differentiation between the two cytotypes. The results suggest that there were at least two separate roads of colonization of diploid and triploid A. scorodoprasum into Lithuania.

Proposal (22): to conserve the name Mesobromion erecti (Br.-Bl. & Moor 1938) Oberd. 1957 against the name Bromion erecti W. Koch 1926

2017 ◽  
Vol 47 (4) ◽  
pp. 385-387
Author(s):  
Jean-Paul Theurillat ◽  
Massimo Terzi ◽  
Romeo Di Pietro
Keyword(s):  
Mesobromion Erecti

scholarly journals THE SYNTAXONOMIC AND SPECIES DIVERSITY OF THE CLASS FESTUCO-BROMETEA BR.-BL. EX KLIKA & HADAČ 1944 IN THE AREA OF PREČKO POLJE

2021 ◽  
Vol 49 (2) ◽  
pp. 27-32
Author(s):  
Sabina Trakić ◽  
Emina Sarač-Mehić ◽  
Velida Durmić ◽  
Sedik Velić
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Biological Diversity ◽  
Conservation Status ◽  
Natura 2000 ◽  
Orchid Species ◽  
Natura 2000 Site ◽  
Mesobromion Erecti ◽  
High Degree ◽  
Rare Endemic

UDK: 581.55(497.6) The ecosystems of the class Festuco-Brometea in Bosnia and Herzegovina play an important role in the overall biological diversity. They are distinguished by a large number of vegetation units, as well as by significant number of rare, endemic or relict plant species. The study area, Prečko polje, covers 1.27  at 1100 m a.s.l., and takes place in the heart of mountain complex Treskavica-Visočica-Bjelašnica. We analised thermophylous meadows of Prečko polje after method of phytocoenological relevé. The class Festuco-Brometea in study area is being differentiated into the alliances Xerobromion erecti (with suballiance Fumano-Scabiosenion leucophyllae) and Mesobromion erecti (with suballiance Eu-Mesobromenion). In general, thermophylous meadows are characterized by high degree of species diversity. Moreover, within thermophylous meadows of Prečko polje we have identified nine species which are considered to have certain conservation status, according to the national and/or international legislation. Our study has shown that investigated area should be considered as potential Natura 2000 site for it is inhabited by a significant number of rare and/or endangered orchid species.

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