Publications and downloads

Annual Reports Arboretum Wespelaar

2025

Catalogues and flyer Arboretum Wespelaar

(also available at the visitor's centre)

Flyer Arboretum Wespelaar
Catalogue of woody plants (by name)
Catalogue of woody plants (by location)
Catalogue of perennials (by number)
Catalogue of perennials (by name)
Codes for source of plants
Key to codes used in catalogue

Dendrological notes Arboretum Wespelaar (NL)

Authors:

- 2013 until present: Joke Ossaer

- 2002 - 2009, 2011, 2012: Koen Camelbeke

- 2010: Marc Struelens

General

Awouters, J. - (2024) - Een trektocht door de Japanse Alpen, september-oktober 2023. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 17 March 2024.
Awouters, J. - (2022) - Griekenland, Pindos, september 2021. Presentation. See also the article in the Yearbook of the Belgian Dendrology Society, 2022: p. 22-31.
Awouters, J. - (2020) - Een dendrologische reis door Californië. Yearbook of the Belgian Dendrology Society, 2019: 21-26.
Awouters, J. - (2019) - Californië. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 17 February 2019.
Bronckaers, S. - (2025) - Botanische rondreis door Japan. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 23 February 2025.
Bunting, A. - (2017) - An Overview of the Chicago Botanic Garden and Collections. Presentation given at Arboretum Wespelaar, 28 January 2017.
Bunting, A. - (2014) - The Importance of Plant Collecting for Developing ex-situ Collections in Botanical Gardens and Arboreta. Presentation given during a series of lectures, Arboretum Wespelaar, 3 May 2014 (large file, download can take a few minutes. If you need a higher resolution, please contact us).
Camelbeke, K. - (2024) - Dendrological riches in the Far East of Russia, 2017. Presentation given for the International Dendrology Society, 27 November 2024.
Camelbeke, K. - (2023) - California. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 26 February 2023.
Camelbeke, K. - (2020) - BDB-Studiereis Slovenië. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 8 March 2020.
Camelbeke, K. - (2011) - Starting and looking after a tree collection. Presentation given at the Maple Symposium, Arboretum Wespelaar, 22 October 2011.
Colin, O. - (2018) - Entre ciel et terre. Les dernières (?) forêts d'altitude du sud-est du Tibet. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 25 February 2018.
Crock, C. - (2024) - Voyage en Corée avec l'IDS. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 17 March 2024.
Crock, C. - (2023) - Les trésors du mont Olympus aux États-Unis. Yearbook of the Belgian Dendrology Society, 2022: 48-56.
Crock, C. - (2017) - Quatre jours de trek à très haute altitude: sur la route du Kanchendzonga (FR). Yearbook of the Belgian Dendrology Society, 2016: 97-106.
Crock, C. - (2015) - Les communautés de plantes dans le sud des Appalaches (FR). Yearbook of the Belgian Dendrology Society, 2014: 88-94.
Crock, C. - (2014) - Les communautés de plantes du Sud des Appalaches (FR). Presentation given at a meeting of the Belgian Dendrology Society, Arboretum Wespelaar, 16 March 2014.
de Spoelberch, P. - (2025) - Autumn exhibition - overview. Accompanying text for the exhibition "Autumn colours at Wespelaar Arboretum" in the Artois Pavilion, Arboretum Wespelaar, October 2025.
de Spoelberch, P. - (2025) - Les Mourgues: une collection dendrologique dans le Massif de Maures au Nord de Saint Tropez. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 23 February 2025.
de Spoelberch, P. - (2021) - La Flore du Sichuan. Virtual presentation given for the Belgian Dendrology Society, 22 June 2021.
de Spoelberch, P. - (2020) - Dendrologie dans les Monts Altaï. Yearbook of the Belgian Dendrology Society, 2019: 21-26.
de Spoelberch, P. - (2020) - Autumn colours in Japan. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 8 March 2020.
de Spoelberch, P. - (2019) - La forêt hyrcanienne d’Iran. Yearbook of the Belgian Dendrology Society, 2018: 19-24.
de Spoelberch, P. - (2019) - La forêt hyrcanienne d’Iran. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 17 February 2019.
de Spoelberch, P. - (2018) - Neoshirakia et Disanthus, deux arbustes étranges et peu connus. Yearbook of the Belgian Dendrology Society, 2017: 28-34.
de Spoelberch, P. - (2018) - Dendrologie au Tien-Shan (Kirghizstan et Kazakhstan). Yearbook of the Belgian Dendrology Society, 2017: 146-154.
de Spoelberch, P. - (2017) - Flora of the Tien-Shan (Kyrgyzstan and Kazakhstan). Presentation given at a meeting of the Belgian Dendrology Society, Arboretum Wespelaar, 26 February 2017.
de Spoelberch, P. - (2016) - Voyage au Yunnan (4 au 19 juin 2014) (FR). Yearbook of the Belgian Dendrology Society, 2015: 87-91.
de Spoelberch, P. - (2015) Flora of the mountains of Yunnan. Presentation given at a meeting of the Belgian Dendrology Society, Arboretum Wespelaar, 22 February 2015. (Large file, download can take a few minutes. If you need a higher resolution, please contact us).
de Spoelberch, P. - (2015) - Au Yunnan avec l’Alpine Garden Society - 4 au 19 juin 2014 (FR). Jaarboek van de Belgische Dendrologische Vereniging, 2014: 17-32.
de Spoelberch, P. - (2012) - Flora of North and Eastern Sikkim. Presentation given at a meeting of the Belgian Dendrology Society, University of Ghent, 11 March 2012 (Large file, download can take a few minutes. If you need a higher resolution, please contact us).
de Spoelberch, P. - (2013) - Notes d’un voyage dendrologique dans le nord du Sikkim (FR). Yearbook of the Belgian Dendrology Society, 2012: 9-17.
Dosmann, M. - (2017) - Harvard University’s Tree Museum: The Legacy and Future of the Arnold Arboretum. Presentation given at Arboretum Wespelaar, 29 March 2017.
George, M. - (2024) - Arboretum de Marche, Marche-en-Famenne, le 25 septembre 2023. Yearbook of the Belgian Dendrology Society, 2023: 205-207.
Hermy, M. - (2023) - De juiste boom voor elke tuin. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 26 February 2023.
McMillan Browse, P. - (2023) - Propagation of Woody Plants (Woody Plant Propagation from Stem Cuttings / Practical Aspects of the Propagation of Temperate Ornamental Woody Plants from Seed). Written and produced by Philip McMillan Browse, Penpol Horticultural Consultancy, 2023.
McNamara, W.A. - (2014) - Plant hunting in the wilds of Asia and its role for Plant Conservation. Presentation given during a series of lectures, Arboretum Wespelaar, 25 May 2014.
Mamdy, G. - (2025) - Explorations botaniques dans les montagnes Hoàng Liên Son au nord du Vietnam. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 23 February 2025.
Mamdy, G. - (2020) - La Flore du n.o. Yunnan (Mts Hengduan). Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 8 March 2020.
Ossaer, J. - (2018) - Collectie Arboretum Wespelaar en de IUCN Red List. Presentation given at Arboretum Wespelaar, 21 November 2018.
Ossaer, J. - (2018) - Diktegroei van de populairste boomsoorten in de Beltrees databank. Yearbook of the Belgian Dendrology Society, 2017: 13-27.
Ossaer, J. - (2016) - The Beltrees database – a wealth of information about trees in Belgium. Yearbook of the Belgian Dendrology Society, 2015: 9-21.
Rammeloo, A. - (2023) - Voyage d'étude BDB Irlande - Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 26 February 2023.
Raven, P. - (2014) - Plant Conservation in a Rapidly Changing World. Presentation given during a series of lectures, Arboretum Wespelaar, 25 May 2014.
van der Veeken, C. - (2019) - Er is meer dan het klimaat wat onze planten bedreigt. Presentation given for the Arboretum Wespelaar annual ticket holders, Arboretum Wespelaar, 2 June 2019.
Van Grinsven, B. - (2019) - Yorkshire, God’s Own Country. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 17 February 2019.
Zale, P. - (2021) - The Research and Conservation Program at Longwood Gardens. Presentation given at Arboretum Wespelaar, 15 November 2021.

Acer

Camelbeke, K. - (2020) - Accepted Names in the Genus Acer - An Update. The Maple Society Newsletter, vol. 30/3: p. 46-54.
Camelbeke, K. - (2017) - The Maple Collection at Arboretum Wespelaar, Belgium, with a special focus on some of the newer and rarer additions. The Maple Society Newsletter, vol. 27/4: p. 15-22.
Crowley, D. - (2017) - How threatened are the world’s maples? Preparing The Red List of Maples. Presentation given at the Maple Day, Arboretum Wespelaar, 27 August 2017.
Crowley, D. - (2017) - Maples of the Hoang Lien Mountains, North-West Vietnam. Presentation given at the Maple Day, Arboretum Wespelaar, 27 August 2017.
De Langhe, J. - (2017) - Acer and Dipteronia: vegetative key to species in cultivation. Presentation given at the Maple Day, Arboretum Wespelaar, 27 August 2017.
de Spoelberch, P. - (2016) Maples in the Macrantha and Palmata (Sinensia) sections. Presentation given at the IDS Study day, Hergest Croft, 15 October 2016.
van Gelderen, C. - (2018) - Classification of Japanese maple cultivars - Key to the groups. Presentation given at the Maple Study Day, Arboretum Wespelaar, 12 May 2018.

Alnus

de Jong, P. - (2018) - Alnus. Presentation given at the Alnus Study Day of the Belgian Dendrology Society, Groenendaal, 16 September 2018.
De Langhe, J. - (2018) - Alnus, vegetative key to species in cultivation. Presentation given at the Alnus Study Day of the Belgian Dendrology Society, Groenendaal, 16 September 2018.
Jablonski, E. - (2018) - Cultivars of Alnus. Presentation given at the Alnus Study Day of the Belgian Dendrology Society, Groenendaal, 16 September 2018.
Rammeloo, A. - (2018) - Alnus. Presentation given at the Alnus Study Day of the Belgian Dendrology Society, Groenendaal, 16 September 2018.

Betula

de Spoelberch, P. - (2011) - Betula in the world, and Arboreta. Presentation given at the IDS Betula Study Week-end, Devon, 8 October 2011 (large file, download can take a few minutes. If you need a higher resolution, please contact us).

Buxus

Hermans, D. - (2017) - Buxus, meer dan Buxus sempervirens. Presentation given at a meeting of the Belgian Dendrology Society, Arboretum Wespelaar, 26 February 2017.

Crataegus

Benoit, D. - (2017) - Vermeerdering en groei van een meidoorncollectie van meer dan 200 taxa (NL). Presentation given at the Crataegus Study Day of the Belgian Dendrology Society, Dentergem, 8 October 2017.
Benoit, D. - (2017) - Vermeerdering en groei van een meidoorncollectie van meer dan 200 taxa (notes). (NL) Accompagnying notes for the presentation given at the Crataegus Study Day of the Belgian Dendrology Society, Dentergem, 8 October 2017.
Jablonski, E. - (2017) - Cultivars of European Crataegus – Past and Present. Presentation given at the Crataegus Study Day of the Belgian Dendrology Society, Dentergem, 8 October 2017.
Lance, R. - (2017) - Crataegus systematics and the classification of North American species. Presentation given at the Crataegus Study Day of the Belgian Dendrology Society, Dentergem, 8 October 2017.
Lance, R. - (2017) - Diversity of Crataegus in North America with Particular Reference to Southeastern U.S. species. Presentation given at the Crataegus Study Day of the Belgian Dendrology Society, Dentergem, 8 October 2017.
Schmidt, P. - (2017) - Wild species and hybrids of Crataegus in W-, N- and Middle Europe. Presentation given at the Crataegus Study Day of the Belgian Dendrology Society, Dentergem, 8 October 2017.
Van Nieuwenhuyse, K. - (2017) - Crataegus slideshow. Slideshow presented at the Crataegus Study Day of the Belgian Dendrology Society, Dentergem, 8 October 2017.

Corylus

Camelbeke, K. & Aiello, Anthony S. - (2016) - Tree of the Year: Corylus fargesii. International Dendrology Society, Yearbook 2016: 12-31.

Enkianthus

Clark, T., Hsu, E. & Camelbeke, K. - (2011) - Enkianthus in cultivation. The Plantsman, 10(2): 78-85.

Fabaceae

Goetghebeur, P. - (2023) - Phylogeny & morphology of arborescent Leguminosae. Presentation given at the Belgian Dendrology Society Fabaceae Study Day, Meise Botanic Garden, 10 September 2023.
Snyers d'Attenhoven C. & de Spoelberch, P. - (2024) - Les arbres de la famille des Fabacées dans les parcs et collections belges: Acacia, Albizia, Cercis, Cladrastis, Gleditsia, Gymnocladus, Laburnum, Maackia, Robinia, Styphnolobium. Yearbook of the Belgian Dendrology Society, 2023: 82-88.
Snyers d'Attenhoven C. - (2023) - Les arbres de la famille des Fabacées dans les parcs et collections belges. Presentation given at the Belgian Dendrology Society Fabaceae Study Day, Meise Botanic Garden, 10 September 2023.

Fagus

de Spoelberch, P. - (2025) - Fagus of the Northern Hemisphere. Presentation given for the International Dendrology Society, 26 November 2025.
de Spoelberch, P. - (2014) Le genre Fagus en Belgique. Yearbook of the Belgian Dendrology Society, 2013: 60-67.
de Spoelberch, P. - (2013) - Fagus dans la nature et les collections. Presentation given at the Belgian Dendrology Society Fagus Study Day, Groenendaal, 15 September 2013.
Fortgens, G. - (2013) - Beukenselecties uit Trompenburg. Presentation given at the Belgian Dendrology Society Fagus Study Day, Groenendaal, 15 September 2013.
Goetghebeur, P. - (2013) - Phylogeny & Morphology of Fagus & Fagaceae. Presentation given at the Belgian Dendrology Society Fagus Study Day, Groenendaal, 15 September 2013.
Maes, J.-P. – (2013) - Principaux champignons lignivores du hêtre. Presentation given at the Belgian Dendrology Society Fagus Study Day, Groenendaal, 15 September 2013.

Fraxinus

Camelbeke, K. - (2013) Geleid bezoek aan de Fraxinus collectie van het Arboretum Wespelaar en Herkenrode. Yearbook of the Belgian Dendrology Society, 2012: 85-87.
Camelbeke, K. & De Langhe, J. - (2012) - The genus Fraxinus L. (Oleaceae): Vegetative key to species cultivated in Western Europe. Presentation given at the Belgian Dendrology Society Fraxinus Study Day, Wespelaar, 7 October 2012.
De Haeck, A. - (2012) - De Essenziekte: Chalara fraxinea. Presentation given at the Belgian Dendrology Society Fraxinus Study Day, Wespelaar, 7 October 2012.
De Meyere, D. & Houben, G. - (2012) - Survey of the genus Fraxinus based on KEW Checklist of Plants.
De Meyere, D. & Houben, G. - (2012) - Infrageneric classification of Fraxinus (Oleaceae) based on Wallander's classification of 2008.
Delahaye, L., Herman, M. & Chandelier, A. - (2011) - La chalarose du frêne en Wallonie: état des lieux (FR). Silva Belgica, 118(5): 13-17.
de Spoelberch, P. - (2013) Le genre Fraxinus en Belgique et dans l’inventaire des arbres remarquables. Yearbook of the Belgian Dendrology Society, 2012: 59-68.
de Spoelberch, P. - (2012) - Fraxinus: A Portrait Gallery. Presentation given at the Belgian Dendrology Society Fraxinus Study Day, Wespelaar, 7 October 2012.
Roskams, P. & De Haeck, A. - (2011) - Essenziekte (Chalara fraxinea) (NL). Instituut voor Natuur- en Bosonderzoek, 1p.
Roskams, P. & De Haeck, A. - (2011) - Informatieblad Essenziekte (Chalara fraxinea) (NL). Instituut voor Natuur- en Bosonderzoek, 4p.
Tree Health Division - (2012) - Exotic Pest Alart. Emerald Ash Borer, Agrilus planipennis Fairmaire
(Coleoptera: Buprestidae). Forestry Commission Plant Health Service, 2p.
Wallander, E. - (2012) - Systematics and characterisation of the genus Fraxinus (Oleaceae). Presentation given at the Belgian Dendrology Society Fraxinus Study Day, Wespelaar, 7 October 2012.
Wallander, E. - (2008) - Revised infrageneric classification of Fraxinus (Oleaceae).

Gymnospermae

Awouters, J. - (2018) Coniferen. Presentation given for the Belgian Dendrology Society, Arboretum Wespelaar, 25 February 2018 (This is a short version of the original version in two parts given for the Koninklijke Vlaamse Dendrologische Vereniging).
Camelbeke, K. - (2021) - Overzicht tot de Gymnospermen (NL). Presentation given for a study day for Agentschap Onroerend Erfgoed, Arboretum Wespelaar, 21 October 2021.
Camelbeke, K. - (2021) - Gymnospermae classification. Scheme used for a study day for Agentschap Onroerend Erfgoed, Arboretum Wespelaar, 21 October 2021.
Camelbeke, K. - (2014) - Gymnospermae identificatiesleutel (NL). Identification key used at a meeting of the Belgian Dendrology Society, Arboretum Wespelaar, 16 March 2014.
de Spoelberch, P. - (2021) - Coniferen in Belgische collecties. Presentation given for a study day for Agentschap Onroerend Erfgoed, Arboretum Wespelaar, 21 October 2021.

Hamamelidaceae

De Langhe, J. - (2014) - Hamamelidaceae (& Altingiaceae): vegetative key
to species in cultivation. Presentation given at the IDS Hamamelis study weekend, Arboretum Kalmthout, 1&2 February 2014.

Hydrangea

De Langhe, J. - (2016) - Hydrangea sensu lato (Hydrangeaceae): vegetative key to woody species in cultivation. Presentation given at the Hydrangea study day of the Belgian Dendrology Society, Plantentuin Universiteit Gent, 18 September 2016.
Goetghebeur, P. et al. - (2016) - Morphology & Phylogeny of the genus Hydrangea sensu lato. Presentation given at the Hydrangea study day of the Belgian Dendrology Society. Plantentuin Universiteit Gent, 18 September 2016.
Goetghebeur, P. et al. - (2016) Morphology & Phylogeny of the genus Hydrangea sensu lato. Comments linked to the presentation given at the Hydrangea study day of the Belgian Dendrology Society. Plantentuin Universiteit Gent, 18 September 2016.

Magnolia

Azuma, H. et al. - (2011) - Intraspecific Sequence Variation of cpDNA Shows Two Distinct Groups Within Magnolia virginiana L. of Eastern North America and Cuba. Castanea, The Journal of the Southern Appalachian Botanical Society, 76(1): 118–123.
Bunting, A. - (2013) - American Magnolia Cultivars and U. S. native species. Presentation given at the Magnolia Study Weekend, Wespelaar, 13 April 2013. +image list
Camelbeke, K. - (2024) - Yellow flowering Magnolias – an overview. Presentation given at the International Dendrology Society Magnolia Study Weekend, Arboretum Wespelaar, 13-14 April 2024.
Camelbeke, K. - (2017) - Zomerbloeiende Oyama magnolia’s (NL). Yearbook of the Belgian Dendrology Society, 2016: 151-157.
Camelbeke, K. & Foster M. - (2015) - The best yellow Magnolias. The Plantsman, June 2015: 78- 85.
Camelbeke, K. - (2014) - Yellow Flowering Magnolias at Herkenrode and Arboretum Wespelaar - an update. RHS Rhododendrons, Camellias and Magnolias, 2014: 91-101.
Camelbeke, K. - (2014) - Geelbloeiende Magnolia's in het Arboretum Wespelaar. Dendroflora, 50: 96-106.
Camelbeke, K. - (2014) - Yellow Flowering Magnolias. Presentation given at the Magnolia Study Weekend, Wespelaar, 13 April 2013.
Camelbeke, K. & de Spoelberch, P. - (2012) - Magnolia ex situ Collection at Arboretum Wespelaar, Belgium. Proceedings of the Second International Symposium on the Family Magnoliaceae at Huazhong Univ. Sci. Tech. Press, 199–208.
Camelbeke, K. - (2004) - Geelbloeiende Magnolia's: een eerste overzicht (NL). Yearbook of the Belgian Dendrological Society, 2003: 32-41.
Christian, T. - (2024) - The greatest book never printed: Magnolia and Trees and Shrubs Online. Presentation given at the International Dendrology Society Magnolia Study Weekend, Arboretum Wespelaar, 13-14 April 2024.
de Spoelberch, P. - (2024) - The making and maintenance of a Magnolia collection. Presentation given at the International Dendrology Society Magnolia Study Weekend, Arboretum Wespelaar, 13-14 April 2024.
de Spoelberch, P. - (2023) - Magnolia exhibition - overview. Accompanying text Magnolia exhibition in the Artois Pavilion, Arboretum Wespelaar, May 2023.
de Spoelberch, P. (2014) - Magnolia species in cultivation and some new hybrids. Presentation given at the NDV Dendrologendag, Von Gimborn Arboretum, 24 april 2014.
de Spoelberch, P. - (2013) - Strategies for a Magnolia collection. Presentation given at the Magnolia Study Weekend, Wespelaar, 13 April 2013.
de Spoelberch, P. - (2011) - Magnolia sprengeri var. elongata in the wild, in cultivation and some hybrids developed at Arboretum Wespelaar, Belgium. Magnolia, The Journal of the Magnolia Society International, 89: 45-50.
Foster, M. - (2024) - Peerless Flowering Trees - the Asiatic Aristocrats. Presentation given at the International Dendrology Society Magnolia Study Weekend, Arboretum Wespelaar, 13-14 April 2024.
Gardiner, J. - (2024) - Magnolias of Borde Hill and other Gardens of the Sussex High Weald; Leonardslee, High Beeches, Nymans, Wakehurst Place. Presentation given at the International Dendrology Society Magnolia Study Weekend, Arboretum Wespelaar, 13-14 April 2024.
Goetghebeur, P. - (2024) - Magnolia sensu lato or sensu stricto? Presentation given at the International Dendrology Society Magnolia Study Weekend, Arboretum Wespelaar, 13-14 April 2024.

Picea

De Langhe, J. - (2014) - Picea (Pinaceae): Vegetative key to species in cultivation. Presentation given at the Belgian Dendrology Society Picea Study Day, Meise, 7 September 2014.
De Langhe, J. - (2014) - Picea (Pinaceae): Vegetative key to species in cultivation. Overview of the determination key and the presentation given at the Belgian Dendrology Society Picea Study Day, Meise, 7 September 2014.
de Spoelberch, P. - (2015) - Le genre Picea en Belgique. Jaarboek van de Belgische Dendrologische Vereniging, 2014: 59-70.
de Spoelberch, P. - (2014) - Picea in the world and arboreta. Presentation given at the Belgian Dendrology Society Picea Study Day, Meise, 7 September 2014.
Goetghebeur, P. - (2014) - Picea study day: an introduction. Presentation given at the Belgian Dendrology Society Picea Study Day, Meise, 7 September 2014.
Goetghebeur, P. - (2014) - Picea study day: an introduction. Slide texts of the presentation given at the Belgian Dendrology Society Picea Study Day, Meise, 7 September 2014.
Herman, M. & Dutilleul, P. - (2014) - Variations morphologiques des trachéides d'épicéas à vitesse de croissance contrastée : incidence sur les caractéristiques papetières. Presentation given at the Belgian Dendrology Society Picea Study Day, Meise, 7 September 2014.

Quercus

de Spoelberch, P. - (2021) - Oaks of the World. Virtual presentation given for the International Dendrology Society (IDS) and open to members of the Belgian Dendrology Society, 24 November 2021.
de Spoelberch, P. - (2014) - Mes rencontres avec les chênes du monde. Yearbook of the Belgian Dendrology Society, 2013: 83-87.
de Spoelberch, P. - (2012) - Meeting with Oaks of the world. Presentation given at the IOS conference, Bordeaux, October 2012.

Rhododendron

Camelbeke, K. - (2023) - De dendrologische verzamelingen van Arboretum Wespelaar met een speciale focus op het genus Rhododendron. Presentation given for the Dutch Rhododendron Society (Nederlandse Rhododendron Vereniging), 15 April 2023.
Camelbeke, K. - (2021) - Our Bremen Rhododendron - a first evaluation. The Rhododendron, Camellia & Magnolia Group, Bulletin 136, August 2021: 9-10.
Crock, C. - (2016) - La culture des rhododendrons lépidotes. Yearbook of the Belgian Dendrology Society, 2015: 76-79.
Crock, C. - (2015) - Growing the lepidote Rhododendrons. Presentation given at the Belgian Dendrology Society lepidote Rhododendron Study Day, Wespelaar, 19 April 2015.
de Spoelberch, P. - (2016) - Les rhododendrons lépidotes en Belgique. Yearbook of the Belgian Dendrology Society, 2015: 62-73.
de Spoelberch, P. - (2015) - Lepidote Rhododendrons. Presentation given at the Belgian Dendrology Society lepidote Rhododendron Study Day, Wespelaar, 19 April 2015
Hubrecht, F. - (2015) - Les écailles de tout près. Fluorescence et microstructures des Rhododendrons lépidotes. Presentation given at the Belgian Dendrology Society lepidote Rhododendron Study Day, Wespelaar, 19 April 2015.
MacKay M., et al. - (2018) - Updated global analysis for ex situ conservation of Rhododendron L. (Ericaceae). Report to Botanic Gardens International, January 2018. Massey University, Palmerston North, New Zealand, and Botanic Gardens Conservation International, Richmond, UK.
Ossaer, J. and de Spoelberch, P. - (2014) - Winterhardheid van lepidote Rhododendron (secties Rhododendron en Pogonanthum): een evaluatie in Arboretum Wespelaar en Herkenrode (2011-2013). Yearbook of the Belgian Dendrology Society, 2013: 17-25.
Veronese, G. - (2016) - Rhododendron Collection at Wespelaar Arboretum and Herkenrode Gardens. Yearbook of the Belgian Dendrology Society, 2015: 80-86.

Rubus

Camelbeke, K. - (2023) - Rubus Study Day, October 1st 2022. Yearbook of the Belgian Dendrology Society, 2022: 57-62.

Sciadopitys

de Spoelberch, P. - (2020) - Sciadopitys verticillata en Belgique. Yearbook of the Belgian Dendrology Society, 2019: 9-13.

Stewartia

Camelbeke, K. - (2014) Stewartia, die perfekte Ergänzung für Rhododendron. Rhododendron und Immergrüne, 16: 35-46.
Camelbeke, K. - (2012) Stewartia, een parel voor elke tuin. Dendroflora, 49: 26-39.
Camelbeke, K. - (2011) Systematics of hardy Theaceae and genus Stewartia. Presentation given at the Belgian Dendrology Society Stewartia Study Day, Arboretum Wespelaar, 16 October 2011.
Camelbeke, K. & Larridon, I. - (2012) Systematiek van de familie Theaceae en positie van het genus Stewartia. Yearbook of the Belgian Dendrology Society, 2011: 59-62.
Crock, C. - (2012) La propagation et culture des Stewartia. Yearbook of the Belgian Dendrology Society, 2011: 76-81.
Crock, C. - (2011) Cultivation of Stewartia: Propagation & maintenance. Presentation given at the Belgian Dendrology Society Stewartia Study Day, Arboretum Wespelaar, 16 October 2011.
de Spoelberch, P. - (2012) Les Stewartia à feuilles caduques en Belgique et dans le monde. Yearbook of the Belgian Dendrology Society, 2011: 63-75.
de Spoelberch, P. - (2011) Keys to the deciduous species of the genus Stewartia. Presentation given at the Belgian Dendrology Society Stewartia Study Day, Arboretum Wespelaar, 16 October 2011.
de Spoelberch, P. - (2001) - Les Stewartia à feuilles caduques rustiques en Europe de l’Ouest. Yearbook of the Belgian Dendrology Society, 2001: 8-22.
Hsu E., Boland T. & Camelbeke K. - (2008) - Stewartia in cultivation. The Plantsman, 7: 78-87.

Tsuga

de Spoelberch, P. - (2024) - Le genre Tsuga revisité dans les collections belges. Yearbook of the Belgian Dendrology Society, 2023: 50-56.