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- Title
Myochroidea, a new genus of corticolous, crustose lichens to accommodate the Lecidea leprosula group.
- Authors
Printzen, Christian; Spribille, Toby; Tønsberg, Tor
- Abstract
The new lichen genus Myochroidea is described to accommodate four species of the Lecidea leprosula group. Myochroidea is characterized by a crustose, areolate, minutely crenate to almost coralloid or indistinct, grey-brown to olive-brown thallus, reddish brown apothecia with an often persistent margin, moderately branched and anastomosing paraphyses with often swollen, pigmented apical cells, asci of the Micarea-type, and colourless, one-celled, fusiform to broadly ellipsoid ascospores. The new combinations Myochroidea leprosula (Arnold) Printzen, T. Sprib. & Tonsberg comb. nov., M. porphyrospoda (Anzi) Printzen, T. Sprib. & Tønsberg comb. nov., M. rufofusca (Anzi) Printzen, T. Sprib. & T#x00F8;nsberg comb. nov. and the new species M. minutula Printzen, T. Sprib. & Tønsberg are published. Lecidea porphyroplaca Hinteregger & Poelt is a synonym of M. rufofusca. Descriptions of the four species and an identification key are provided. Myochroidea leprosula and M. rufofusca are reported as new to North America.
- Subjects
LECIDEACEAE; LICHEN anatomy; LICHENS; ASCOSPORES; SPECIES diversity
- Publication
Lichenologist, 2008, Vol 40, Issue 3, p195
- ISSN
0024-2829
- Publication type
Article
- DOI
10.1017/S0024282908007639