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| Meinders-Groeneveld, J.; Segal, S.. |
| Pteridological Notes, 3 The genus Polypodium in the Netherlands Both Polypodium vulgare L. (sensu stricto) and P. interjectum Shivas occur in the Netherlands. Most of the differential characters reported in the literature overlap one another rather broadly, so that it is often necessary to use a ’syndrome’ of characters for the naming of individual specimens. The results obtained by the present authors do not correspond with those of SHIVAS (22), ROTHMALER & SCHNEIDER (18), or LENSKI (11) in every respect. The two forms appear to differ in the following features: P. vulgare: Frond lanceolate in outline with the lower pairs of pinnae approximately of equal length along a considerable portion of the frond blade, and the apical part often gradually... |
| Tipo: Article / Letter to the editor |
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| Ano: 1967 |
URL: http://www.repository.naturalis.nl/record/527273 |
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