Studien an Cystiden-I. Subulicystidium Parm

The cystidia of the genus Subulicystidium have been studied with the scanning electron microscope. Their ornamentation consists of two rows of ribbon-shaped structures, arranged crosswise to the main axis of the cystidia. The free ends of these structures are double-refractive and have formerly been described as ‘four rows of short crystals’. A key to the accepted three species is given; one new combination is proposed.