Helotiales with a macroscopical similarity with Orbilia
Quite a
large number of species of Helotiales (Leotiomycetes) can be confused with
Orbiliomycetes if only macroscopically studied. Especially members of the
Naevioideae deceive workers who wish to collect Orbilia species in the
field. True Orbiliomycetes are readily recognized microscopically by the
presence of KOH-soluble spore bodies (SBs) in the ascospores, bifurcate ascus
bases with a flexuous stalk (Orbilia), truncate ascus apices (subgenus Orbilia)
and other features. Helotiales have often an amyloid ascus apex, but this is
not the case in the four here shown examples.
|
Naeviopsis sp. |
Laetinaevia uvidula |
Calloria sp. |
Calloriopsis sp. |
