Polycoccum clauzadei sp. nov. (Ascomycetes, Dothideales), a nonlichenized lichenicolous fungus on Xanthoria elegans

Authors
Navarro-Rosines, P Roux, C
Citation
P. Navarro-rosines et C. Roux, Polycoccum clauzadei sp. nov. (Ascomycetes, Dothideales), a nonlichenized lichenicolous fungus on Xanthoria elegans, MYCOTAXON, 69, 1998, pp. 327-337
Citations number
25
Categorie Soggetti
Plant Sciences
Journal title
MYCOTAXON
ISSN journal
00934666 → ACNP
Volume
69
Year of publication
1998
Pages
327 - 337
Database
ISI
SICI code
0093-4666(199810/12)69:<327:PCSN(D>2.0.ZU;2-R
Abstract
Description of Polycoccum clauzadei Nav.-Ros, et C. Roux sp. nov. (Dothidea les), a lichenicolous fungus known only from France (department Vaucluse). It develops on Xanthoria elegans (Link) Th. Fr., on the thallus of which it induces the formation of galls. The new species is close to P. pulvinatum (Eitner) R. Sant. (= P. galligenum Vezda), but differs by smaller galls [(0 ,2)0,4-0,8 mm diam.] and perithecioid ascomata [(120)140-190 x (110)120-180 mu m], and by typically obovoid ascospores. In addition, the asci of P. cl auzadei are slightly smaller [(45)50-75(80) x 13-15 mu m] and are normally 4-6-spored.