The Lecanoralean Centrum

@inproceedings{Henssen1981TheLC,
  title={The Lecanoralean Centrum},
  author={Aino Henssen and Gerhard Keuck and Bernd Renner and G. Vobis},
  year={1981}
}
The Lecanorales are considered to be the typical lichenized discomycetes, including most of the lichen families with fruit bodies in the form of apothecia. All the large foliose lichens and the majority of the large fruticose lichens belong to this group. The order is characterized by an ascohymenial development, inoperculate asci, and the consistency and duration of the hymenium. The fruit bodies are long lived; their hymenium is strongly gelatinized with the paraphyses cemented together by… 
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References

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TLDR
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TLDR
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TLDR
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