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BioImages: The Virtual Field-Guide (UK)
Ingold, C.T., 1975
Guide to Aquatic Hyphomycetes
Despite the title, this guide is concerned with the aero-aquatic (or "Ingoldian") hyphomycetes, the mould fungi which grow under water but produce spores (asexual conidia) on the water surface. These spores have characteristic shapes - often tetrahedral - that enable them to adhere to the surface film. A downside of this is that they get trapped and concentrated in the foam that builds up below waterfalls and rapids in streams. This is a guide to the identification of spores found in such foams.
The guide is essentially a picture book or atlas of spores of aero-aquatic fungi from all over the world. Three charts of spore drawings of representative species lead to species entries where related species can be considered.
The author, Prof Ingold, discovered them and is commemorated in their other name.
| Publisher |
Freshwater Biological Association (FBA) |
| Volume |
No. 30 |
| Pages |
96 |
| ISBN |
900386 22 |
| Coverage |
Most species from around the world, as known at the time. Obviously the UK species are best known. |
| Illustrations |
Line drawings accompany the text, plus a few half-tone photomicrographs. |
| Identify |
Under a Compound Microscope. |
| Specimen Prep. |
Foam samples should be killed on collection with FAA etc to prevent germination that otherwise occurs as soon as a solid surface is encountered. Otherwise examine fresh. Microscope preparations in water, lactic acid or lactophenol may be examined under phase contrast or stained with cotton blue, although they only stain weakly. |
| Difficulty |
Fairly straightforward, although the differences are often subtle. Remember to count septa, not just look at general appearance. You will often find conidia that are not included. |
Malcolm Storey
Taxonomic Scope
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