Systematics and Evolution, Part A The Mycota

D. ovisporusandU. unispora(Figs.13.8eand
13.9d). The latter species have oblique to muri-
form spore septations.

VI. Anamorph Stages

Microconidial formation during germination
of basidiospores and on monokaryotic hyphae
seems to be an effective dispersal strategy
in the haplophase (Fig. 13.9e–h). However,
this requires the fusion of compatible cells to
establish the dikaryophase. Disarticulation of

dikaryotic cells along septa to form arthroconi-

dia is characteristic of few dacrymycetaceous

taxa. Though it is a very significant distribution

mechanism inD. stillatus, even in the closely

relatedDacrymyces minor, arthrospore produc-

tion is not known.

Recently, additional anamorph fructifica-

tions of Dacrymycetes have been described.

Dacryoscyphus chrysochilus(Fig.13.6)wasintro-

duced by Kirschner and Yang ( 2005 ), and two

anamorphicDacrymycesspecies,D. pinacearum

andD. subarcticus, proposed by Shirouzu and

Tokumasu (Shirouzu et al. 2009 ), were trans-

ferred toDacryoscyphus(Kirschner et al. 2010 ).

Fig. 13.5Basidiocarps of Dacrymycetales. Figures not to scale, modified from Oberwinkler ( 2012 )

362 F. Oberwinkler