Filamentous lichen

A filamentous lichen is a lichen that has a growth form like a mass of thin, stringy, non-branching hairs or filaments.[1][2] Filaments of the photosynthetic partner (Trentepohlia ) or trichome-forming (cyanobacteria) are surrounded by sheaths of the fungal filaments.[2] So unlike in most other lichen growth forms, the filaments of fungus do not determine the shape.[2] Filamentous lichens may look like matted black hair.[2]

References
  1. What is a lichen?, Australian National Botanical Garden,
  2. Fioliose lichens, Lichen Thallus Types, Allan Silverside,


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