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Plastid and nuclear DNA marker data support the recognition of four tetraploid marsh orchids (Dactylorhiza majalis s.l., Orchidaceae) in Britain and Ireland,but require their recircumscription |
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| Authors: | MIKAEL HEDRÉN SOFIE NORDSTRÖM RICHARD M. BATEMAN |
| Affiliation: | 1. Department of Biology, Plant Ecology and Systematics, Lund University, S?lvegatan 37, SE‐223?62 Lund, Sweden;2. Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9?3DS, UK |
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