Verdere aanwinsten voor de mosflora van Schiermonnikoog: IV

During a number of excursions in June and October 1969 the exploration of the moss-flora of the Dutch island of Schiermonnikoog has been continued. The results were 6 new records for the island, viz. Amblystegium compactum, Antitrichia curtipendula, Calliergon giganteum, Campylopus introflexus, Polytrichum formosum and Sphagnum plumulosum. Antitrichia was found within the Cryphaeetum arboreae with Amblystegium serpens, Brachythecium rutabulum, B. velutinum, Hypnum cupressiforme, Homalothecium sericeum and Orthotrichum pulchellum as its direct associates on a horizontal stem of Sambucus nigra. During the past century Antitrichia was not rare in the Netherlands, but there were only 2 recent finds.