Paul Joseph Antonius Kessler (also Paul (Joseph Antonius) Keßler; born 1958), German botanist and entomologist.

Nationaal Herbarium Nederland, Universiteit Leiden branch, P. O. Box 9514, 2300 RA Leiden, The Netherlands

IPNI standard form: Kessler

Taxon names authored

(List may be incomplete)

• 6 taxon names authored by Paul Joseph Antonius Kessler

Eponyms

(List may be incomplete)

• 0 eponyms of Paul Joseph Antonius Kessler

Publications

• Keßler, P.J.A. 1988. Revision der Gattung Orophea Blume (Annonaceae). Blumea 33(1): 1–80. PDF Reference page. 
• Keßler, P.J.A. 1990. Studies on the tribe Saccopetaleae (Annonaceae) — II. Additions to the genus Orophea Blume. Blumea 34(2): 505–516. PDF Reference page. 
• Keßler, P.J.A., Bos, M.M., Sierra Daza, S.E.C., Kop, A., Willemse, L.P.M., Pitopang, R. & Gradstein, S.R. 2002. Checklist of woody plants of Sulawesi, Indonesia. Blumea Supplement 14: 1–160. ResearchGate Reference page. 
• Su, Y.C.F., Mols, J.B., Takeuchi, W.N., Kessler, P.J.A. & Saunders, R.M.K. 2005. Reassessing the generic status of Petalolophus (Annonaceae): evidence for the evolution of a distinct sapromyophilous lineage within Pseuduvaria. Systematic Botany 30(3): 494–502. DOI: 10.1600/0363644054782189 ResearchGate Reference page. 
• Miller, J.A., Schilthuizen, M., Burmester, J.L., van der Graaf, L., Merckx, V., Jocqué, M., Kessler, P.J.A., Fayle, T.M., Breeschoten, T., Broeren, R., Bouman, R., Chua, W.J., Feijen, F., Fermont, T., Groen, K., Groen, M., Kil, N.J.C., de Laat, H.A., Moerland, M.S., Moncoquet, C., Panjang, E., Philip, A.J., Roca-Eriksen, R., Rooduijn, B., van Santen, M., Swakman, V., Evans, M.N., Evans, L.J., Love, K., Joscelyne, S.H., Tober, A.V., Wilson, H.F., Ambu, L.N. & Goossens, B. 2014e: Dispatch from the field: ecology of ground-web-building spiders with description of a new species (Araneae, Symphytognathidae). Biodiversity Data Journal 2(e1076): 1–13. DOI: 10.3897/BDJ.2.e1076 . Reference page.