Two new taxa in Marasmiellus are described from the Netherlands, viz. M. lateralis Bas & Noordel., a pleurotoid species in sect. Marasmiellus, found on a decaying stump of Pseudotsuga menziesii, and M. trabutii var. longisporus Bas & Noordel. in sect. Tricolores from leaf-sheaths of Ammophila arenaria.