Local Government Partner :: ACT GovernmentSupported by :: Australian Native Plants Society (ANPS) Canberra Region :: Gearys Gap/Wamboin Landcare Group
Home Fungi Other fungi on wood Other non-black fungi Septobasidium sp.

Septobasidium sp.


Septobasidium fruit bodies appear on woody plants, generally as flat growths over branches and these growths range from a square centimetre or so to many square centimetres in area. The fruit bodies are velvety in appearance and generally are some shade of brown (from very pale grey brown to deep chestnut brown to blackish brown, but often with a pale margin). In larger coverings there may be cracks or gaps in these flat growths (as you see at https://www.anbg.gov.au/fungi/images-captions/septobasidium-sp-0202.html).


At first glance it is natural to suppose that these fungi are parasitic on the plants on which they appear and, while they do rely on their supporting plants for nutrients, the fungi gain those nutrients indirectly since species of Septobasidium are parasitic on scale insects (without killing them), which in turn are directly parasitic on plants. Some fungal hyphae penetrate scale insects and extract nutrients while others grow over scale insect colonies to form that brown covering. There is a brief explanation on this page: https://www.anbg.gov.au/fungi/ecology-invertebrates.html


If you wish to find out more you should try to find a copy of The Genus Septobasidium by J.N. Couch (University of North Carolina Press, 1938). This magnificent monograph has numerous drawings and photographs and presents a great deal of information about the genus Septobasidium.


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Septobasidium sp. at Aranda Bushland - 21 Dec 2017 by CathB
Septobasidium sp. at Aranda Bushland - 21 Dec 2017 by CathB


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Species information

  • Septobasidium sp. Scientific name
  • Common name
  • Not Sensitive
  • Local Native
  • Non-Invasive

Location information

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