A REVISION OF SOME SPECIES IN LECANORA-SENSU-STRICTO WITH A DARK HYPOTHECIUM (LECANORALES, ASCOMYCOTINA)

Citation
Ht. Lumbsch et al., A REVISION OF SOME SPECIES IN LECANORA-SENSU-STRICTO WITH A DARK HYPOTHECIUM (LECANORALES, ASCOMYCOTINA), The Bryologist, 99(3), 1996, pp. 269-291
Citations number
35
Categorie Soggetti
Plant Sciences
Journal title
ISSN journal
00072745
Volume
99
Issue
3
Year of publication
1996
Pages
269 - 291
Database
ISI
SICI code
0007-2745(1996)99:3<269:AROSSI>2.0.ZU;2-H
Abstract
The species belonging to Lecanora sensu stricto with a dark hypotheciu m are revised. All species are basically tropical. Seventeen taxa are distinguished. Descriptions of the species and a key to the taxa are i ncluded. The new species L. atroanima Lumbsch, L. hypocrocinoides Lumb sch, and L. kalbiana Lumbsch are described and the new combination Tep hromela khatiensis (Rasanen) Lumbsch is made. Lecanora melanocardia Va inio is reduced to synonymy with L. coronulans Nyl.; Lecanora atroaeru ginosa Vainio with Vainionora flavovirens (Fee) Kalb, and L. kumaoensi s Rasanen with Tephromela khatiensis. Several taxa are excluded from t he group and tentatively placed in the L. granifera group and Vainiono ra. The presence of a dark hypothecium is considered to be of no taxon omic significance above species rank in Lecanora sensu stricto since n o additional correlating characters were found. The problems of distin guishing this group of species from Vainionora Kalb are briefly discus sed. The two genera differ mainly on the basis of conidial type.