Sandy stiltball (Battarrea phalloides)

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Sandy stilt puffball
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Sandy stiltball fact file

Sandy stiltball description

KingdomFungi
PhylumBasidiomycota
ClassBasidiomycetes
OrderTulostomatales
FamilyBattarreaceae
GenusBattarrea (9)

This strange fungus has a small, rounded head borne on a shaggy ochre-brown stalk (1). The head is a mass of spores(3), which have a warty appearance and are brown and spherical (5).

WARNING: many species of fungus are poisonous or contain chemicals that can cause sickness. Never pick and eat any species of fungus that you cannot positively recognise or are unsure about. Some species are deadly poisonous and can cause death within a few hours if swallowed.

Size
Stipe (stem) height: 10-25 cm (1)
Spore mass diameter: 2.5- 9 cm (1)
Stipe (stem) diameter: 1- 2.5 cm (1)
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Sandy stiltball biology

Fungi are neither plants nor animals but belong to their own kingdom. They are unable to produce their own food through the process of photosynthesis, as plants do; instead, they acquire nutrients from living or dead plants, animals, or other fungi, as animals do. In many larger fungi (lichens excepted) the only visible parts are the fruiting bodies, which arise from a largely unseen network of threads called 'hyphae'. These hyphae permeate the fungus's food source, which may be soil, leaf litter, rotten wood, dung, and so on, depending on the species.

Very little is known of the bizarre sandy stiltball fungus (2). The fruiting body is produced between September and November (5), either singly or in small groups (6). The stalk remains in place throughout winter, a feature that allows the presence of the species to be identified for a longer period (3).

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Sandy stiltball range

Rare, usually a Mediterranean or Atlantic species (5), and has a scattered distribution in Europe. It has also been recorded from North America, Africa and Australia, but it may have been confused with another species (7). In Britain it is known mainly from the south and east of England (7); the best-known location is a hedgebank in Suffolk; at 70m in length, this site is thought to be Britain's smallest nature reserve (3).

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Sandy stiltball habitat

Found in very dry areas on sandy soils, on banks and at the edges of woods (5). It seems to be associated with decaying wood (6), and can sometimes be located inside hollow trees facing towards the light (2). It has been found in association with ash, yew and pine (7), and in Suffolk it is most often found under elm hedges (8).

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Sandy stiltball status

Provisionally classified as Endangered in Great Britain (2), and fully protected in the UK under Schedule 8 of the Wildlife and Countryside Act 1981 (2). Digging up fungi without permission could also constitute theft under the Theft Act of 1968 (4).

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Sandy stiltball threats

The hedge bank in Suffolk is known to have become overgrown in the past, and faces threats from road-widening and re-surfacing work (2). In addition the stumps of dead trees, which may provide valuable habitat for the species, are often removed (8).

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Sandy stiltball conservation

Under Schedule 8 of the Wildlife and Countryside Act it is an offence to pick, uproot, cut, destroy, collect or sell any listed species. The sandy stiltball is one of just four species of non-lichenized fungi to receive protection under this schedule, furthermore it is a priority species under the UK Biodiversity Action Plan (UK BAP), and is included in English Nature's Species Recovery Programme. The Species Action Plan sets out the aims of maintaining and protecting current populations and promoting research into the ecological requirements of the species in order to inform habitat management (2). The hedge-bank in Suffolk is regularly monitored and is managed appropriately by the Suffolk Wildlife Trust (2).

The UK Biodiversity Action Plan for this species is available at UK BAP.
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Find out more

For further information on British fungi, see:

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Authentication

Information authenticated by Carl Borges of English Nature:
http://www.english-nature.org.uk/ and by Dr Peter Roberts of Royal Botanic Gardens, Kew:
http://www.rbgkew.org.uk/

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Glossary

Fruit body
In fungi, the fruit body is the visible part of the fungus which bears spores (microscopic particles involved in both dispersal and reproduction).
Photosynthesis
Metabolic process characteristic of plants in which carbon dioxide is broken down, using energy from sunlight absorbed by the green pigment chlorophyll. Organic compounds are made and oxygen is given off as a by-product.
Spores
Microscopic particles involved in both dispersal and reproduction. They comprise a single or group of unspecialised cells and do not contain an embryo, as do seeds.
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References

  1. National Biodiversity Network Species Dictionary (November 2001)
    http://www.nhm.ac.uk/nbn/nhm/index.html
  2. Jordan, M. (1995) The Encyclopaedia of fungi of Britain and Europe. Harper Collins Publishers, London.
  3. UK Biodiversity Action Plan Species Action Plan (November 2001):
    http://www.ukbap.org.uk
  4. English Nature (1998) The wild mushroom pickers code of conduct. English Nature, Peterborough.
  5. Marren, P. (2001) Waxcaps and woodland mushrooms. Conservation of fungi in Britain and Northern Europe. Plant Talk On-line
    http://www.plant-talk.org/Pages/26fungi.html
  6. Courtecuisse, R. (1999) Collins mushrooms of Britain and Europe. HarperCollins Publishers, London.
  7. Pegler, D. N., Læssøe T. & Spooner B.M. (1995) British Puffballs, Earthstars and Stinkhorns: an account of the British Gasteroid Fungi. Royal Botanic Gardens, Kew.
  8. Buczacki, S. (1992) Collins Guide. Mushrooms and toadstools of Britian and Europe. Herper Collins Publishers, London.
  9. Carl Borges (2002) English Nature. Pers. comm.
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Image credit

Sandy stilt puffball  
Sandy stilt puffball

© Carl Borges

Carl Borges
carl.borges@english-nature.org.uk

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