Introduction to Fungi, Third Edition

AQUATIC HYPHOMYCETES (INGOLDIAN FUNGI)
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Fig 25.17 Ingoldiella hamata. (a) Developing dikaryotic conidia.
Note that the septa bear clamp connections. (b) Mature
dikaryotic conidia. (c) Monokaryotic conidium lacking clamp
connections.
conidia, separation is also brought about by
septum dissolution, and this species also has an
inoperculate discomycete as its teleomorph,
Mollisia uda.
Lunulospora curvula (Fig. 25.18c) has crescentshaped
blastoconidia which develop from
specialized conidiogenous cells at the apex of
dark conidiophores. This fungus is more
common in warmer countries than in temperate
regions, and in Britain its season of maximum
abundance is in late summer and autumn.
25.2.3 Other types of spore
Not all aquatic hyphomycetes have branched
or sigmoid conidia. Margaritispora aquatica
forms hyaline, globose phialoconidia bearing
a few conical protrusions (Fig. 25.20a), whilst