A new species of Megalaria from lies Kerguelen in the southern Indian Ocean

摘要

The new species Megalaria allantoidea Fryday is described from the subantarctic lies Kerguelen in the southern Indian Ocean, where it grows over terricolous bryophytes or Azorella selago cushions. It differs from all other described species of Megalaria in having large, sausage-shaped ascospores. The systematics of the genus Megalaria is reviewed, ascus structure of some previously described species revised, and the position of the new species in the genus discussed.