Syntaxonomy, ecology and distribution patterns of thermophilous deciduous forests of the class Quercetea pubescentis remain understudied in the Western Balkans. Some oak forest types have not been investigated to date in large parts of the region and classification of many traditionally distinguished types has not been critically revised based on numerical data analysis. This is particularly true for the acido-thermophilous communities dominated by Quercus petraea, that are transitional between thermophilous and meso-acidophilous oak forests and were traditionally classified mostly to the class Quercetea robori-petraeae. Numerical analysis of nearly 3000 relevés allowed us to approach these issues. We classified thermophilous deciduous forests of the Western Balkans into six types reflecting the main broad-scale ecological and phytogeographical patterns in species composition within the study area: type 1-sub-Mediterranean forests dominated by Quercus pubescens and/or Carpinus orientalis; type 2-sub-Mediterranean and continental Quercus pubescens forests without Carpinus orientalis; type 3-meso-thermophilous supra-Mediterranean and/or relict communities dominated by Ostrya carpinifolia; type 4-thermophilous continental forests of deep, neutral to slightly acidic soils dominated by Quercus frainetto and/or Quercus cerris; type 5-acido-thermophilous continental forests dominated by Quercus petraea and/or Quercus cerris; type 6-acido-thermophilous northern Dinaric-southern Pannonian Quercus petraea dominated forests. A detrended correspondence analysis revealed that the variation in species composition mainly follows a geographical southwest-northeast gradient, reflecting the broad-scale ecological (macroclimatic and geological) and phytogeographical (turnover of dominant tree species) gradients. There is also a significant role of light regime, which mainly reflects local management practice, level of disturbance and the hemeroby of particular sites. Contrary to most traditional classifications, we place the acidothermophilous forests of the Western Balkans (type 6) into the class Quercetea pubescentis.

Virgin Reserve "Lom" is one of the three protected areas of this rank in Bosnia and Herzegovina and the most conserved part of the forest of beech fir and spruce ass. Piceo-Abieti-Fagetum in the wider area. Previous research of flora in the Reserve was partial, within the more widely formulated themes. During the research in 2005 and 2006, in the area of the Reserve (298 ha) the authors identified the biodiversity of 81 species fungi, 6 lichens 50 mosses, 17 ferns and 233 flowering plants

Među zapadnobosanskim gorama planina Klekovača zauzima posebno mjesto. Idući od Cincara u zapadnoj Bosni sve do Snežnika u Sloveniji, ona predstavlja najvišu planinu sjeverozapadnih Dinarida (Slika 1), gradeći moćan, 20 km dug, relativno uzak greben sa 1961 m visokim najvišim vrhom (Velika Klekovača). Jači mediteranski uticaj, koji dolinom Une i Unca prodire u ovdašnje dinarske planine, gubi se na južnim stranama susjedne Lunjevače, a njegov uticaj jasno se odražava kroz neke karakteristične vegetacijske tipove na ogoljelim padinama pomenute planine prema Drvaru. Sa sjeverne strane klekovačkog grebena prostire se masivni Grmeč, čije visinsko zoniranje vegetacije već odaje dominaciju umjereno kontinentalne u odnosu na (sub)mediteransku klimu (Brujić & Stanivuković, 2012). Skoro cijeli gorski pojas Klekovače predstavlja nepregledno prostranstvo mješovitih šuma bukve, jele i smrče (Slika 5), samo tu i tamo ispresijecano šumarskim naseljima ili manjim selima i rijetkim, ali prostranim, gorskim livadama krčevinama. Ove klimatogene šume na visokim južnim padinama UVOD / INTRODUCTIONIzvod U radu je sistematski prikazana flora planine Klekovača u zapadnoj Bosni i Hercegovini na osnovu objedinjenih višegodišnjih istraživanja autora i dostupne te kritički obrađene literaturne građe. Osim prikupljanja i obrade ovih podataka važan dio metodologije istraživanja sastojao se u rekonstrukciji puteva svih botaničara i fitocenologa, koji su od kraja 19. vijeka istraživali ovu planinu i ostavili pisanu dokumentaciju. Na ukupno 174 lokaliteta, na kojima je bilježena flora i sakupljen obilan herbarski materijal, utvrđeno je da vaskularna flora planine Klekovače na prikazanom obuhvatu broji 812 taksona do nivoa podvrste, svrstanih u 97 familija. Od ukupnog broja taksona 503 je bilo od ranije poznato iz literature, od čega 21 nije potvrđeno, dok je 309 prvi put registrovano za područje Klekovače. Vrsta Glyceria striata (Lam.) Hitchc. navodi se kao nova pridošlica u flori Bosne i Hercegovine, dok je za vrstu Monarda didyma L. prvi put registrovano da se subspontano širi na teritoriji Balkanskog poluostrva. Za svaki zabilježeni takson navedeni su svi lokaliteti sa koordinatama. Posebna pažnja posvećena je problematici taksonomije nekih kompleksnih rodova (Aconitum, Campanula, Eleocharis, Festuca, Heliosperma i Potentilla), kao i najznačajnijim rijetkim i ugroženim biljnim vrstama.

Wetland forests and scrub (WFS) are conditioned by the strong impact of water. They consist of various vegetation types, depending on many factors such as type and duration of flooding, water table level and its fluctuation, river current strength, substrate ability to retain water, etc. WFS vegetation has been insufficiently studied in the Balkan Peninsula, especially in Bosnia and Herzegovina. By means of numerical classification, we aimed to classify Western Balkans WFS at the alliance level, and to identify the main underlying ecological gradients driving the variation in species composition. The dataset containing all published and available unpublished relevés from Slovenia, Croatia and Bosnia and Herzegovina was first classified using the EuroVegChecklist Expert System in Juice software in order to assign the corresponding class to each of the relevés. Relevés were subsequently analyzed within each of the four WFS classes (Alno glutinosae-Populetea albae, Salicetea purpureae, Alnetea glutinosae and Franguletea). Cluster analysis resulted in eight alliances, Salicion albae, Salicion triandrae, Salicion eleagno-daphnoidis, Alno-Quercion, Alnion incanae, Alnion glutinosae, Betulion pubescentis and Salicion cinereae, while one cluster could not be assigned with certainty. Edafic factors were found to be the most important factors determining the floristic composition and syntaxa differentiation of WFS in the study area.

Rad obrađuje šumsku vegetaciju potencijalnog Natura 2000 područja „Trešnjik” na Starčevici kodBanje Luke. Iako područje leži nadomak glavnog grada Republike Srpske, šumska vegetacija do sadanije bila istraživana. Istraživanje je ukazalo na veliki diverzitet šumskih staništa na relativno malomprostoru. Utvrđeno je ukupno sedam stanišnih tipova, klasifikovanih u dvije ekološki i florističkijasno definisane grupe: (i) Grupa stanišnih tipova bukovih šuma: (1) stanišni tip Athyrium filix-femina-Fagus sylvatica (čiste šume bukve); (2) stanišni tip Fagus sylvatica-Tilia tomentosa (šume bukvei srebrnolisne lipe); (3) stanišni tip Quercus petraea-Tilia tomentosa (degradacija prethodnog tipa,sa dominacijom lipe); (ii) Grupa stanišnih tipova kitnjakovih šuma: (4) stanišni tip Carpinus betulus-Quercus petraea (klimatogena šuma kitnjaka i graba); (5) stanišni tip Vaccinium myrtillus-Quercuspetraea (acidofilna kitnjakova šuma); (6) stanišni tip Carpinus orientalis-Quercus petraea (termofilnekitnjakove šume); (7) stanišni tip Fraxinus ornus-Carpinus orientalis (šikare bjelograbića i crnogjasena).