Abstract
Spore appendage development in
Chaetosphaeria chaetosa and
Halosphaeria trullifera is described. In
H. trullifera the polar appendages are initially closely adpressed to the ascospore wall but later separate and finally form long mucilaginous strands at maturity. These appendages are compared with those described for
Halosarpheia. H. trullifera is transferred to
Halosarpheia and the reasons discussed. In
Ch. chaetosa the appendages are formed by fragmentation of an exosporium to form irregular sheet-like, equatorial appendages and polar appendages; the latter are described for the first time in this species. Appendage development is compared with that described for
Corollospora.