Abstract

A total of 26 crustose calicioid lichens and fungi were found in Tanzania. Most of them belong to a group of species with wide distributions in cool areas of both hemispheres and occasional occurrence in high mountains at low latitudes. In Tanzania calicioids mainly occur in the middle and upper forest zones and their niches are found on the bark of old trees and on lignum, most of them restricted to mountain cloud forests. Calicioids are rare and often red-listed, and are also bioindicators of long forest continuity. Consequently, they form an important biota in mountain cloud forests and deserve attention in the context of preserving biodiversity and developing conservation policies. One new species, Chaenothecopsis kilimanjaroensis, is described. Chaenotheca hispidula and Pyrgillus cambodiensis are reported as new to Africa and Calicium lenticulare and Chaenothecopsis debilis are reported as new to Tanzania.

Highlights

  • Calicioid lichens and fungi represent an artificial, antiquated concept and not a natural grouping of species

  • Very early on the “Calicioidea” [1,2,3] were recognized as a group characterized by having a mazaedium and typically they were crustose lichens with stalked fruit bodies

  • Minute fungi with apothecia superficially similar to those originally included in the “Calicioidea” came to be added, for example, genera like Chaenothecopsis Vain. and Stenocybe Nyl. ex Körb., both of which later were transferred to Mycocaliciales [6]

Read more

Summary

Introduction

Calicioid lichens and fungi represent an artificial, antiquated concept and not a natural grouping of species. Very early on the “Calicioidea” [1,2,3] were recognized as a group characterized by having a mazaedium (mature spores being collected on the surface of the fruit body) and typically they were crustose lichens with stalked fruit bodies. With this circumscription, they were later to be considered a prime example of a natural group, often ranked as an order, Caliciales [4]. They are mainly rare and threatened by habitat destruction—usually forest management—and, often included in Red lists [13]

Objectives
Methods
Results
Conclusion
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call