Nieuwe vondsten van Nitella opaca Agardh op Texel
Gorteria Dutch Botanical Archives , Volume 14 - Issue 5 p. 96- 99
In the autumn of 1987 the stonewort Nitella opaca was found on two locations in ditches along the landward margin of the sand-dunes on the island of Texel. Nitella opaca is a very rare species in the Netherlands; the findings on the island are probably the only records of the plant in Holland in recent years.
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