Denis Filer

Research interests

Plant diversity


I study and document plant diversity. At Oxford Plant Sciences, my work focuses on the development and implementation of BRAHMS. BRAHMS is database management software for preserved and living natural history collections, taxonomic research and biogeographic study. It is used to manage botanic gardens, seed banks, herbaria and other museum based natural history collections, images and literature. Read more about BRAHMS:

Contact details

+44 (0) 1865 275129

Publications (while at this department)

Filer, D. and Liddell, A. (2019). BRAHMS Manual: Software for Natural History Management. Department of Plant Sciences, University of Oxford. 214pp. DOI: 10.13140/RG.2.2.25263.07849

Munoz PR, Carruthers T. et al (2019). A taxonomic monograph of Ipomoea integrated across phylogenetic scales. Nature Plants 5, 1136–1144. DOI:

Sundaram M, Donoghue MJ, Farjon A, Filer D, Mathews S, Jetz W, Leslie AB. (2019). Accumulation over evolutionary time as a major cause of biodiversity hotspots in conifers. Proceedings. Biological sciences 286-1912. DOI:

le Roux MM, Wilkin P, Balkwill K, Boatwright JS, Bytebier B, Filer D, Klak C, Klopper RR, Koekemoer M, Livermore L et al. (2017). Producing a plant diversity portal for South Africa. TAXON 66(2):421-431. DOI:

Yasmin S. Baksh-Comeau, Shobha S. Maharaj, C. Dennis Adams, Stephen A. Harris, Denis L. Filer, William D. Hawthorne (2016). An annotated checklist of the vascular plants of Trinidad and Tobago with analysis of vegetation types and botanical 'hotspots'. Phytotaxa, 250:1. DOI:

Goodwin, Z.A., Harris, D.J., Filer, D., Wood, J.R.I. & R.W. Scotland. 2015. Widespread mistaken identity in tropical plant collections. Current Biology 25(22): 1066-1067.

Antunes, Carvalho F, Filer, D, Renner, S.S. (2014) Taxonomy in the electronic age and an e-monograph of the papaya family (Caricaceae) as an example Cladistics..

Moro, Marcelo Freire, Lughadha, Eimear Nic, Filer, Denis L., de Araújo, Francisca Soares, Martins, Fernando Roberto. (2014) A catalogue of the vascular plants of the Caatinga Phytogeographical Domain: a synthesis of floristic and phytosociological surveys Phytotaxa. 160 (1): pp 1-118.

Farjon, A, Filer, D.L. (2013) An Atlas of the World's Conifers. An Analysis of their Distribution, Biogeography, Diversity and Conservation Status. . Brill, Leiden, Netherlands. ISBN: 9789004211803.

Victor, JE, Smith, GF, Turland, NJ, le Roux, M, Paton, A, Figueiredo, E, Crouch, NR, van Wyk, AE, Filer, DL, van Wyk, E. (2013) Creating an Online World Flora by 2020: a perspective from South Africa Biodiversity and Conservation..

Filer, D.L. (2012) BRAHMS WebConnect: website development and publishing online from BRAHMS. Available on

Filer, D.L. (2012) BRAHMS documentation guide. Equivalent to c. 250pp text. Available on

Filer, D.L. (2012) BRAHMS Version 7.0 Software. Available on

Proenca, C.E.B, Filer, D.L, Lenza, E, Silva, J.S, Harris, S.A. (2012) Phenological Predictability Index in BRAHMS: A tool for herbarium-based phenological studies Ecography..

Filer, D.L. (2010) Botanical Research And Herbarium Management System. BRAHMS for beginners training Guide. Available on

Hughes, C.E, Govindarajulu, R, Robertson, A, Filer, D.L, Harris, S.A, Bailey, C.D. (2007) Serendipitous backyard hybridization and the origin of crops Proceedings of the National Academy of Sciences of. 104 (36): pp 14389-14389.

Filer, D.L. (2001) Databases and herbarium efficiency BioNET newsletter. 8:

Kiew, W, Khin, N.N, Filer, D.L. (2001) Implementing BRAHMS at the Singapore Herbarium Newsletter of the Singapore Botanic Gardens. 16: pp 15-17

Filer, D.L. (2000) A review of collections management at the Museu Paraense -Emílio Goeldi (MPEG) Belém, Brazil. Technical report prepared for the Museu Goeldi-DFID Pilot Programme (PPG-7).

Hawthorne, W.D, Filer, D.L, Turnbull, D.J. (1999) Tree data management, mapping, and the development of the TREMA software International Forestry Review. 1 (2): pp 87-96

Barnes, R.D, Filer, D.L, Milton, S.J. (1996) Acacia karroo Monograph and Annotated Bibliography Tropical Forestry Papers. 32:

Pearce, T.R, Filer, D.L, Vanden Berghe, E. (1996) Computerization of the East African Herbarium: Development of a regional plant information service; in: The Biodiversity of African Plants Proceedings XIVth AETFAT Congress. 22-27 August 1994, Wagenigen, Netherlands. pp 18-31

Filer, D.L. (1988) A database for tree improvement and seed bank management: SISTEM Commonwealth Forestry Review. 67 (3): pp 243-251