Aspicilia verrucigera Hue (1910: 48)

Nordin, Anders, 2015, New synonyms and lectotypes in Aspicilia (Megasporaceae, Ascomycota), Phytotaxa 192 (3), pp. 197-200 : 199

publication ID	https://doi.org/ 10.11646/phytotaxa.192.3.6
persistent identifier	https://treatment.plazi.org/id/03C387E9-FFB8-FFD2-53E7-70D0A746C095
treatment provided by	Felipe
scientific name	Aspicilia verrucigera Hue (1910: 48)
status

Treatment

Type:— FINLAND. Savonia media: Pieksämäki, 1880, J. P. Norrlin. Norrlin, Herb. Lich. Fenn. 241 (holotype PC, isotype UPS!). Lecanora trunciseda Magnusson (1939: 117) . Type:— SWEDEN. Blekinge: Yttre Vämö, 1874, H. Falk (holotype UPS!). syn. nov. Lecanora uplandica Magnusson (1939: 165) . Type:— SWEDEN. Uppland: Uppsala, Halmbyboda, 12 July 1852, Th. M. Fries (holotype

UPS!). syn. nov.

The lignicolous Lecanora trunciseda is known only from the type collection. The thallus is paler than usual and some of the apothecia are slightly compressed end elongated, but in other respects it agrees well with other specimens of Aspicilia verrucigera . At UPS there are at least a couple of other collections with lignicolous material of this species.

It is not uncommon for other normally saxicolous species of the Megasporaceae to occur both on lignum and bark.

Lecanora uplandica is another example of a name based on only one collection. Magnusson (1939) placed it among the “ Radiantes ”, i.e. species with radiating elongated marginal areoles. This is a bit surprising. Compared to other species in this group, the radiating marginal areoles in L. uplandica are quite indistinct and not really more than can be found in other specimens of A. verrucigera . It is true that the specimen has a rather odd appearance. The thallus has an unusual blue-green tint and the apothecia are relatively large and protruding. The erroneous information about conidium length provided by Magnusson (1939: 166) made it difficult to interpret. The measurements given by him, (17)20–25 μm, agree with the conidia of Protoparmeliopsis muralis View in CoL , which also grows on the same piece of rock. Fortunately, a single pycnidium undoubtedly belonging to the right thallus was found. This contained conidia with a length of 13.5–17 μm, which agrees with the conidium length of A. verrucigera .