Thursday, 14 December 2017

Fungi that bite ...

Velvet Tooth (Hydnellum spongiosipes)




H. spongiosipes (Thelephorales: Bankeraceae) is an uncommon stipitate hydnoid fungus. These are a group of ‘tooth fungi’ [fungi that release their spores from tooth-like structures], which have a short stalk or 'stipe', hence the name 'stipitate'.

Stipitate hydnoid fungi are ectomycorrhizal; forming close symbiotic relationships with trees and deriving some of their nutrients from the tree's roots. This aids them in obtaining nutrients where soil quality is poor and means they are always found in association with trees. H. spongiosipes is typically associated with oak, sweet chestnut and, less frequently, beech; this provides a useful, but not necessarily accurate way of distinguishing between this species and H. ferrugineum, which occurs mainly under pine.

References:

Ainsworth, A.M., Parfitt, D., Rogers, H.J. and Boddy, L. (2010). Cryptic taxa within European species of Hydnellum and Phellodon revealed by combined molecular and morphological analysis. Fungal Ecology, 3(2), pp. 65-80.
Dickson, G. (2000). A field key to British non-resupinate hydnoid fungi. Field Mycology, 1(3), pp. 99-104.
Kibby, G. (2017). Mushrooms and Toadstools of Great Britain & Europe, Volume 1, pp.40-41.
O’Reilly, P. (2016). Fascinated by Fungi – exploring the majesty and mystery, facts and fantasy of the quirkiest kingdom on earth. Llandysul: First Nature, pp. 203-205.
Phillips, R. (2006). Mushrooms. London: Pan Macmillan, pp. 323-327.
Sterry, P. and Hughes. B. (2009). Collins Complete Guide to British Mushrooms and Toadstools. London: HarperCollins, pp. 296-301.

Thursday, 7 December 2017

Neottiella ...

Neottiella (Octospora) rutilans




Despite its rich peach-orange appearance N. rutilans (Pezizales: Pyronemataceae) is a small ascomycete fungus that can easily be overlooked where it grows, buried amongst Polytrichum mosses on heathland or in light sandy soils. The shallow cup or disc-shaped fruiting bodies, growing to around 5-15mm across, may become undulating and somewhat contorted where several fruiting bodies are condensed and crowded together. The above examples were recently photographed in a Sussex dune system.

References:

Phillips, R. (2006). Mushrooms. London: Pan Macmillan, p. 367, fig. p. 366, e.
Sterry, P. and Hughes. B. (2009). Collins Complete Guide to British Mushrooms and Toadstools. London: HarperCollins, p. 314, fig. p. 315.