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
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.