Landgoed Groeneveld – Baarn

This site was originally a country estate, but it is now a vast nature reserve called Landgoed Groeneveld, located between the towns of Hilversum and Baarn in the central Netherlands. It consists mainly of woodland interspersed with meadows. My samples come from a crescent‑shaped pond with a sandy bottom and a thin layer of sediment.

The pond hosts a rich population of Difflugia tuberculata and Netzelia oviformis. Some other interesting species found here include:

• Lecythium armatus
• Raphidiophrys elegans
• Arcella mitrata
• Arcella crenulata
• Biomyxa vagans
• Pelomyxa corona
• Metachaos spec.
• Cyclopyxis intermedia
• Zivkovicia spectabilis
• Polychaos dubium
• Frenzelina reniformis
• Limnofila spec.
• Hedriocystis brachipous
• Difflugia nodosa