Glossary Term: Derm

1. A pileipellis consisting of erect elements or ascending elements.
2. Surface layer of cap cells if they are differentiated from the underlying tissue and arranged more or less perpendicular to cap surface. If the elements are a single row or roundish cells, this is a cellular derm. If cells are elongated and all reach the same level, this is a palisoderm. If cells are elongated and of different lengths, it is a trichoderm. A hymeniderm is a derm made up of non-septate elements originating at the same level. See also epithelioid hymeniderm and transition between hymeniderm and epithelium.

The prefix ixo- can be added to indicate that elements are gelatinized.

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Created: 2019-06-23 21:08:48 CEST (+0200)
Last modified: 2019-07-20 17:46:41 CEST (+0200)