K.Hosaka & Castellano (2007)
Sphaerobolaceae J.Schröter (1889)
Geastrales is an order of gasterocarpic basidiomycetes (fungi) that are related to Cantharellales. The order contains the single family Geastraceae, commonly known as "earthstars", which older classifications had placed in Lycoperdales, or Phallales.
Approximately 64 species are classified in this family, divided among eight genera, including the Geastrum, Myriostoma and Sphaerobolus. The Sphaerobolus are known as "shotgun fungus" or "cannonball fungus". They colonize wood-based mulches and may throw black, sticky, spore-containing globs onto nearby surfaces.
The fruiting bodies of several earthstars are hygroscopic: in dry weather the "petals" will dry and curl up around the soft spore sac, protecting it. In this state, often the whole fungus becomes detached from the ground and may roll around like a tumbleweed. In wetter weather, the "petals" moisten and uncurl; some even curl backward lifting the spore sac up. This allows rain or animals to hit the spore sac so, emitting spores when enough moisture is present for them to germinate and establish.
- Hosaka K, Bates ST, Beever RE, Castellano MA, Colgan W 3rd, Domínguez LS, Nouhra ER, Geml J, Giachini AJ, Kenney SR, Simpson NB, Spatafora JW, Trappe JM. (2006). "Molecular phylogenetics of the gomphoid-phalloid fungi with an establishment of the new subclass Phallomycetidae and two new orders". Mycologia. 98 (6): 949–959. doi:10.3852/mycologia.98.6.949. PMID 17486971.CS1 maint: uses authors parameter (link)
- Corda ACJ. (1842). Icones fungorum hucusque cognitorum (in Latin). 5. Prague: J.G. Calve. pp. 1–92 (see p. 25).
- Kirk et al. 2008, p. 648
- Kirk PM, Cannon PF, David JC, Stalpers JA. (2001). Ainsworth & Bisby's Dictionary of the Fungi (9th ed.). CABI Bioscience. p. 205. ISBN 978-0-85199-377-5.CS1 maint: uses authors parameter (link)
- Kirk, PM; Cannon, PF; Minter, DW; Stalpers, JA (2008). Dictionary of the Fungi (10th ed.). CAB International. p. 274. ISBN 9780851998268.
- Lehman R (1985). "Black spots on houses—an insect or disease problem?". Penn Dept Agric Bur Pl Ind, Reg Hort. 11: 15–16.
- Brantley EA, Davis DD, Kuhns L (2001). "Biological control of the artillery fungus, Sphaerobolus stellatus, with Trichoderma harzianum and Bacillus subtilis". Journal of Environmental Horticulture. 19 (1): 21–23. doi:10.24266/0738-2898-19.1.21 (inactive 2020-01-22).
- Media related to Geastrales at Wikimedia Commons
- "Geastrales K. Hosaka & Castellano". Atlas of Living Australia.
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