Rimose

Rimose mushroom
Rimose mushroom (Inosperma rimosum)

Rimose is an adjective used to describe a surface that is cracked or fissured.[1]

The term is often used in describing crustose lichens.[1] A rimose surface of a lichen is sometimes contrasted to the surface being areolate.[1] Areolate is an extreme form of being rimose, where the cracks or fissures are so deep that they create island-like pieces called areoles, which look the "islands" of mud on the surface of a dry lake bed.[1] Rimose and areolate are contrasted with being verrucose, or "warty".[1] Verrucose surfaces have warty bumps which are distinct, but not separated by cracks.[1]

In mycology the term describes mushrooms whose caps crack in a radial pattern, as commonly found in the genera Inocybe and Inosperma.[2]

Look up rimose in Wiktionary, the free dictionary.
  1. ^ a b c d e f Lichen Glossary, Australian Botanic Garden Archived 2014-12-06 at the Wayback Machine
  2. ^ Knudsen, Thomas; Vesterholt, J., eds. (2018). Funga Nordica Agaricoid, boletoid, clavarioid, cyphelloid and gasteroid genera. Copenhagen: Nordsvamp. p. 30. ISBN 978-87-983961-3-0. (glossary)