Abstract
Reinhammar, L.‐G. 1995. Evidence for two distinct species of Pseudorchis (Orchidaceae) in Scandinavia. ‐ Nord. J. Bot. 15: 469–481. Copenhagen. ISSN 0107–055X.Nordic populations of Pseudorchis albida s.l. were studied for variation in morphological characters. Canonical variates analysis (CVA) arrange populations in two discrete groups, corresponding to P. albida S.S. and P. straminea, respectively. In principal component analysis (PCA) of the total material a small overlap could be seen. However, separate PCA:s on members of the two taxa from the same geographic region show perfect separation. Since the two taxa are distinct in morphology as well as in additional characters, e.g. habitat preference in the area of sympatry, they are best treated as separate species. The generic name Pseudorchis is considered to be validly published and is then preferred over the later Leucorchis. A lectotype is selected for Gymnadenia albida f. subalpina.
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