A. Thell, PYCNOCONIDIAL TYPES AND THEIR PRESENCE IN CETRARIOID LICHENS (ASCOMYCOTINA, PARMELIACEAE), Cryptogamie. Bryologie, lichenologie, 16(4), 1995, pp. 247-256
The pycnoconidia in about 70 cetrarioid lichen species have been inves
tigated. Five main types are recognized: bacillariform, bifusiform, ci
triform, filiform and sublageniform pycnoconidia. The largest morpholo
gical variation is found within the bifusiform and citriform types. Th
e variation and presence of different types within cetrarioid lichens
are described and discussed.