HERBARIUM DEND
University of Zagreb, Faculty of Forestry
HERBARIUM DEND
University of Zagreb, Faculty of Forestry
About us Publications Links News Virtual Herbarium Contact HR

The Department of Forest Genetics, Dendrology and Botany of the Faculty of Forestry, University of Zagreb, holds the largest collection of woody plants in Croatia. This is a unique collection featuring plant material, i.e. herbarium, a collection of cones, fruits and seeds, as well as a collection of shoots of deciduous species in the winter season, of autochthonous and allochthonous woody plants.

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ABOUT US

The dendrological collection of the Department of Forest Genetics, Dendrology and Botany of the Faculty of Forestry, University of Zagreb, was established in 1960. It currently contains about 7000 herbarium specimens, more than 1000 samples of cones, fruits and seeds, and over 500 shoots of deciduous species in the winter season, with newly collected botanical material added to the collection every year. Since 2016, the herbarium of the Faculty of Forestry of the University of Zagreb has been registered in the Index Herbariorum, under the international acronym DEND.

The herbarium of the Faculty of Forestry is an important source of information on woody plants for the local and international botanical community, and is primarily used by scientists dealing with dendrology. Dendrology is a science which examines the morphological characteristics of trees, shrubs and subshrubs, their affiliation, biological features, environmental requirements, variability, distribution and economic importance. The herbarium collection offers scientists insights into the diversity of plant taxa, biodiversity of a particular area, distribution of woody plants, population trends in time and space, and in addition to the scientific role, also plays an important role in the teaching of dendrology, horticultural dendrology, phytocoenology, botany studies and related subjects.

The primary activities of the herbarium collection workers are: systematization and digitalization of herbarium specimens, supplementation of the collection by collecting specimens, mounting herbarium specimens.

STAFF

Assistant Professor Igor Poljak, PhD

Research field: forest dendrology, horticulture dendrology, population genetics, molecular ecology, morphological and chemical diversity of populations, conservation biology

Plant groups: noble hardwoods (Castanea sativa, Sorbus domestica, Sorbus torminalis, Sorbus aucuparia, Pyrus pyraster, Pyrus spinosa, Malus sylvestris), alders (Alnus glutinosa, Alnus incana, Alnus alnobetula), willows (Salix alba, Salix fragilis, Salix elaeagnos, Salix purpurea, Salix triandra)

e-mail: ipoljak@sumfak.hr

tel.: +385 1 235 2547

Professor Marilena Idžojtić, PhD

Research field: variability and conservation of noble hardwoods, invasive woody plants, dendroflora (indigenous and ornamental allochthonous), morphological and chemical diversity of population, conservation biology

Plant groups: mistletoes (Loranthus europaeus, Viscum album, Arceuthobium oxycedri), pine hybrids (Pinus nigra, P. sylvestris, P. densiflora, P. thunbergiana), noble hardwoods (Castanea sativa, Sorbus domestica, Sorbus torminalis, Pyrus pyraster, Pyrus spinosa, Malus sylvestris)

e-mail: midzojtic@sumfak.hr

tel.: +385 1 235 2547

Antonio Vidaković, MSc

Research field: dendroflora, population genetics, morphology, biodiversity

Plant groups: noble hardwoods (Castanea sativa, Pyrus pyraster, Sorbus aucuparia, Pyrus spinosa), willows (Salix alba, Salix fragilis, Salix elaeagnos, Salix purpurea, Salix triandra)

e-mail: avidakovi@sumfak.hr

tel.: +385 1 235 2538

PUBLICATIONS

2020.

Vidaković, A., M. Idžojtić, T. Megyery, D. Turk, I. Poljak, 2020: Park kralja Petra Krešimira IV. u Zagrebu - drvenaste biljke. Šumarski list 144 (9-10): 475-484.

2019.

Ježić, M., M. Kolp, S. Prospero, K. Stirovski, M. Double, D. Rigling, M. Risteski, V. Karin-Kujundžić, M. Idžojtić, I. Poljak, M. Ćurković-Perica, 2019: Diversity of Cryphonectria parasitica in callused chestnut blight cankers on European and American chestnut. Forest Pathology, Article number e12566.

Drvodelić, D., I. Poljak, I. Perković, M. Šango, K. Tumpa, I. Zegnal, M. Idžojtić, 2019: Laboratory germination testing of the sweet chestnut (Castanea sativa Mill.) according to ISTA rules. Šumarski list 143 (9-10): 469-477.

Vukelić, J., I. Šapić, G. Mei, I. Poljak, I. Plišo Vusić, M. Orešković, 2019: Black alder forests (type 91E0* Natura 2000, type E.2.1.9. NHC) in the Plitvice Lakes National Park. Sumarski list: 143 (7-8): 295-305.

Idžojtić, M., I. Anić, I. Šimić, M. A. Kovačević, I. Poljak, 2019: Dendrological characteristics of Trsteno Arboretum. Sumarski list 143 (3-4): 125-143.

Idžojtić, M., 2019: Dendrology: Cones, Flowers, Fruits and Seeds. Elsevier – Academic Press, London, San Diego, Cambridge, 800 pp.

2018.

Šegota, V., V. Hršak, N. Vuković, A. Alegro, V. Besendorfer, Z. Sedlar, S. Bogdanović, I. Poljak, 2018: Disentangling the kinship of Serapias × todaroi Tin. (Orchidaceae) along the eastern Adriatic using chromosome count and morphometry. Flora (Jena) 249: 9-15.

Ježić, M., J. Mlinarec, R. Vuković, Z. Katanić, Lj. Krstin, L. Nuskern, I. Poljak, M. Idžojtić, M. Tkalec, M. Ćurković Perica, 2018: Changes in Cryphonectria parasitica Populations Affect Natural Biological Control of Chestnut Blight. Phytopathology 108 (7): 870-877.

Poljak, I., M. Idžojtić, I. Šapić, P. Korijan, J. Vukelić, 2018: Diversity and Structure of Croatian Continental and Alpine-Dinaric Populations of Grey Alder (Alnus incana /L./ Moench subsp. incana): Isolation by Distance and Environment Explains Phenotypic Divergence. Šumarski list 142 (1-2): 19-32.

Poljak, I., M. Idžojtić, A. Alegro, I. Šapić, M. Orešković, J. Vukelić, 2018: Distribution, habitat and population variability of green alder (Alnus alnobetula (Ehrh.) K.Koch subsp. alnobetula) in Croatia. Proceedings: Natural resources green technology and sustainable development, Zagreb, Faculty of Food Technology and Biotechnology, University of Zagreb: 156-160.

Vukelić, J., D. Baričević, I. Poljak, M. Vrček, I. Šapić, 2018: Phytocoenological analysis of grey alder (Alnus incana /L./ Moench supsp. incana) forests in Croatia. Sumarski list 142 (3-4): 123-135.

Vukelić, J., P. Korijan, I. Šapić, A. Alegro, V. Šegota, I. Poljak, 2018: 2018: Forest Vegetation of Hardwood Tree Species along the Mirna River in Istria (Croatia). SEEFOR-South-east European forestry 9 (1): 1-16.

Juranović Cindrić, I. M. Zeiner,A. Starčević, Z. Liber, G. Rusak, M. Idžojtić, M. Stingeder, 2018: Influence of F1 hybridization on the metal uptake behaviour of pine trees (Pinus nigra × Pinus thunbergiana; Pinus thunbergiana × Pinus nigra). Journal of trace elements in medicine and biology 48: 190-195.

Božić, M., S. Pervan, I. Anić, N. Pernar, M. Idžojtić, V. Jirouš Rajković, R. Beljo Lučić, M. Sladin, T. Gržan (ur.), 2018: 120 godina Šumarskog fakulteta Sveučilišta u Zagrebu. Šumarski fakultet Sveučilišta u Zagrebu, monografija, 264 pp.

2017.

Krstin, Lj., Z. Katanić, M. Ježić, I. Poljak, L. Nuskern, I. Matković, M. Idžojtić, M. Ćurković-Perica, 2017: Biological control of chestnut blight in Croatia: an interaction between host sweet chestnut, its pathogen Cryphonectria parasitica and the biocontrol agent Cryphonectria hypovirus 1. Pest management science: 73 (3): 582-589.

Poljak, I., M. Idžojtić, Z. Šatović, M. Ježić, M. Ćurković Perica, B. Simovski, J. Acevski, Z. Liber, 2017: Genetic diversity of the sweet chestnut (Castanea sativa Mill.) in central Europe and the western part of the Balkan Peninsula, and evidence of marron genotype introgression into wild populations. Tree Genetics and Genomes 13 (1): 1-13.

Perić, S., M. Idžojtić, D. Kajba, D. Diminić, I. Poljak, M. Tijardović, 2017: Croatia - NNEXT Country Report. In (Hasenauer H. et al., eds.): Non-Native Tree Species for European Forests: Experiences, Risks and Oportunities - COST Action FP1403 NNEXT Country Reports, Joint Volume, 3rd Edition. Institute of Silviculture, University of Natural Resources and Life Sciences, Vienna, Austria. 64-72 pp.

2016.

Poljak, I., N. Vahčić, M. Gačić, M. Idžojtić, 2016: Morphological Characterization and Chemical Composition of Fruits of the Traditional Croatian Chestnut Variety 'Lovran Marron'. Food technology and biotechnology 54 (2): 189-199.

Brus, R., M. Idžojtić, K. Jarni, 2016: Morphologic variation in northern marginal Juniperus oxycedrus L. subsp. oxycedrus populations in Istria. Plant biosystems, 150 (2): 274-284.

Ježić, M., I. Poljak, M. Idžojtić, Z. Liber, M. Ćurković-Perica, 2016: First Report on Phytoplasmas infecting wild apples and wild pears in Croatia. Plant disease 100 (1): 207-208.

Zebec, M., M. Idžojtić, Z. Šatović, I. Poljak, Z. Liber, 2016: Alive and kicking, or, living on borrowed time? – Microsatellite diversity in natural populations of the endangered Ulmus minor Mill. sensu latissimo from Croatia. Acta Botanica Croatica 75 (1): 53-59.

Andrić, I., I. Poljak, M. Milotić, M. Idžojtić, D. Kajba, 2016 Leaf phenology characteristics of narrow-leaved ash (Fraxinus angustifolia vahl) in clonal seed orchard. Šumarski list 140 (3-4): 117-126.

Poljak, I., N. Vahčić, M. Gačić, M. Ježić, M. Ćurković-Perica, M. Idžojtić, 2016: Mineral composition and heavy metals content of sweet chestnut fruits in five natural populations from central Croatia. In (Radojčić Redovniković, I. et al., eds.): Proc. Natural resources, green technology and sustainable development 2, Zagreb, 5.-7. 10. 2016., 31-37 pp.

2015.

Poljak, I., D. Kajba, I. Ljubić, M. Idžojtić, 2015: Morphological variability of leaves of Sorbus domestica L. in Croatia. Acta Societatis Botanicorum Poloniae 84 (2): 249-259.

George, J.-P., H. Konrad, E. Collin, J. Thevenet, D. Ballian, M. Idžojtić, U. Kamm, P. Zhelev, T. Geburek, 2015: High molecular diversity in the true service tree (Sorbus domestica) despite rareness : data from Europe with special reference to the Austrian occurrence. Annals of botany 115 (7): 1105-1115.

Zebec, M., M. Idžojtić, I. Poljak, I. Modrić, 2015: Population variability of wych elm (Ulmus glabra Huds.) in the Mountainous Region of Croatia according to the leaf morphology. Sumarski list 139 (9-10): 429-439.

Idžojtić, M., I. Poljak, B. Brnas, 2015: Arboretum Samostana svete Marije u Zaostrogu. Priroda: 5-6: 67-68.

Idžojtić, M., I. Poljak, N. Rap, B. Filić, K. Glova, M. Stramput, 2015: Arboretum Lisičine. Priroda: 5-6: 54-57.

Kajba, D., D. Ballian, M. Idžojtić, I. Poljak, 2015: Leaf morphology variation of Populus nigra L. in natural populations along the rivers in Croatia and Bosnia and Herzegovina. SEEFOR-South-east European forestry: 6 (1): 39-51.

LINKS

JSTOR Global Plants

https://plants.jstor.org/

Global Biodiversity Information Facility

https://www.gbif.org/

Royal Botanic Gardens, Kew

https://www.kew.org/

International Plant Names Index (IPNI)

https://www.ipni.org/index.html

Croatian Botanical Society

http://www.hbod.hr/

Croatian Forestry Society

https://www.sumari.hr/

Croatian Natural History Museum

http://www.hpm.hr/

Herbarium ZAGR - Faculty of Agriculture

http://herbarium.agr.hr/hr_index.html

CONTACT

Herbarium DEND

University of Zagreb, Faculty of Forestry

Department of Forest Genetics, Dendrology and Botany

Svetošimunska cesta 23

10000 Zagreb, Hrvatska

http://dendherbarij.sumfak.unizg.hr/herbariumdend.html

The DEND Herbarium can be visited by appointment on working days, from Monday to Friday, between 8AM and 4PM.

Requests for a visit or loan of the DEND herbarium specimens should be addressed to the responsible person:

Igor Poljak

e-mail: ipoljak@sumfak.hr

tel.: +385 1 235 2547

NEWS

Planting in the School Arboretum of the Forestry and Woodworking School in Karlovac

In November 2020, 28 seedlings of woody plants were planted in the School Arboretum of the Forestry and Woodworking School in Karlovac. The seedlings were donated by the Faculty of Forestry of the University of Zagreb. The majority of them are autochthonous forest fruit trees: wild apple, wild pear, rowan, service tree, common and midland hawthorn. In terms of ornamental species, three dove-trees were planted as well as a holly species native to Mongolia and south-west China.

Park King Petar Krešimir IV

In order to establish the current status of the woody plants on the territory of the Kralj Petar Krešimir IV Park in Zagreb, a dendrological analysis was performed and the current status of woody plants was compared to the status from 1962 and 1995. The plants were identified in the period from the summer of 2018 to the summer of 2019. There were a total of 122 taxa recorded in the garden, distributed within 36 families: 83 species (six gymnosperms and 77 angiosperms), two subspecies (both angiosperms), 30 cultivars (one gymnosperm and 29 angiosperms), six hybrids (all angiosperms) and one variety (angiosperm). Despite the fact that in comparison with different arboretums and botanical gardens the park does not contain more significant woody taxa, nevertheless the trees of ginkgo, plane, common persimmon and Amur cork tree stand out, present in the park since its establishment and constituting an important segment of its visual identity.

Planting in the school arboretum of the Forestry and Woodworking School in Karlovac

With the planting of about 50 seedlings of woody plants collected and donated by the Dendrology Section of the Croatian Botanical Society, in the spring and fall of 2019 the school arboretum of the Forestry and Woodworking School in Karlovac was enriched with 27 new species, varieties and cultivars: Cornus kousa, Cornus sericea 'Flaviramea', Callicarpa bodinieri var. giraldii, Davidia involucrata, Erica carnea, Ilex aquifolium 'Ferox', Ilex verticillata, Ilex pernyi, Osmanthus heterophyllus, Viburnum davidii, Weigela florida 'Variegata', Juniperus communis 'Repanda', Juniperus communis 'Green Carpet', Juniperus squamata 'Blue Star', Juniperus squamata 'Blue Carpet', Taxus baccata 'Fastigiata Aureomarginata' etc.

Trsteno Arboretum – dendrological analysis

The Trsteno Arboretum is our only arboretum managed by a scientific institution – the Croatian Academy of Sciences and Arts, and fulfills the tasks set before a historical arboretum in a modern world. In order to determine the present abundance of woody taxa at the Trsteno Arboretum, the plants were documented in the period from spring 2017 to spring 2018. A dendrological analysis was conducted and the present abundance of woody plants was compared to the literature data from the middle and late 20th century, as well as from the beginning of the 21st century. Currently, the Trsteno Arboretum contains 317 woody taxa, of which 233 are species, 8 subspecies, 2 varieties, 10 hybrids and 64 cultivars.

Publishing of the book "Dendrology: Cones, Flowers, Fruits and Seeds"

The book offers a detailed overview of the morphology of reproductive organs and data on the reproductive biology of woody plants of importance for European dendrology. The book describes reproductive organs of 2020 taxa and shows them on photos in detail. The numerous photos significantly contribute to the value of the book and facilitate identification of a particular taxon based on its cones, flowers, fruits and seeds. https://www.elsevier.com/books/dendrology-cones-flowers-fruits-and-seeds/idzojtic/978-0-12-819644-1