Abstract
Two new species of Polystachya Hook. are described and illustrated: Polystachya rydingii Baranow & Mytnik occurring from the Democratic Republic of Congo and P. sosefii Baranow & Mytnik from Cameroon. The species belong to the section Polystachya Kraenzl., which is the only pantropical section in the genus. Maps of the distribution for the new species and their closest relatives and a brief discussion with notes on their habitat, ecology, and altitude are provided.
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Acknowledgments
We would like to express our gratitude to Professor Dariusz Szlachetko, head of Department of Plant Taxonomy (Gdansk University, Poland) for his help, inspiration and productive discussions. We also would like to thank Prof. Marc Sosef (WAG) and Prof. Olof Ryding (C) for access to the herbarium material. This article was prepared thanks to the grant from Gdansk University (BW/14 AO-5-0384-8) and thanks to the grant from European Commission’s Research Infrastructure Action via the SYNTHESYS Project at the Real Jardin Botanico (CSIC; ES-TAF 4129), Natural History Museum of Vienna (AT-TAF 1690, AT-TAF-3903), National Botanic Garden of Belgium (BE-TAF-750), National Herbarium of the Netherlands (NL-TAF 2834, NL-TAF-2265), Natural History Museum of Denmark (DK-TAF 3231, DK-TAF-4040) and Botanic Garden and Botanic Museum in Berlin-Dahlem (DE-TAF 3906).
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Baranow, P., Mytnik-Ejsmont, J. Two new species of Polystachya Hook. (Orchidaceae) from Africa. Plant Syst Evol 281, 11–16 (2009). https://doi.org/10.1007/s00606-009-0176-6
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DOI: https://doi.org/10.1007/s00606-009-0176-6