Fungal gall of Exocarpus sp.

Tuggeranong DC, ACT

Identification history

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User's notes

6 comments

MichaelMulvaney wrote:

   8 Feb 2019

See page 159 of Farrow (2016)

Mike wrote:

   8 Feb 2019

Thanks Michael. Page 158 also solves one of my other ID problems.

KenT wrote:

   8 Feb 2019

Unfortunately as it is currently known, the genus Uromycladium is restricted in its host range to four genera within the Fabaceae (see Doungsa-ard, C.; McTaggart, A.R.; Geering, A.D.W.; Shivas, R.G. (2018) Diversity of gall-forming rusts (Uromycladium, Pucciniales) on Acacia in Australia, Persoonia Volume 40, June 2018, pp. 221-238). One or more fungi may be involved but not Uromycladium until someone can demonstrate otherwise.

julielindner wrote:

   9 Feb 2019

It looks to me to be a fasciation a condition that causes distortion of the growing tip. This can be caused by a hormonal imbalance, genetic mutation, bacterial, fungal or viral infection, insect attack or physical injury.

Mike wrote:

   9 Feb 2019

I added this sighting because of discussion on Exocarpos cupressiformis (Cherry Ballart) on 7 Oct 2017 about galls on Exocarpos cupressiformis.

KenT wrote:

   9 Feb 2019

Some of the information presented concerning Exocarpos cupressiformis (Cherry Ballart) on 7 Oct 2017 is now out of date. Uromycladium tepperianum has been split into a further 16 species, Uromycladium tepperianum in the strict sense is currently only known from Acacia cupularis, A. ligulata, A. rostellifera, A. sclerosperma and A. xanthina and occurs in South Australia and Western Australia. Uromycladium notabile was found to be based on two separate species so it has ceased to be recognised. The paper referenced by Scurfield 1965 appears not to have been followed up by anyone since that I can find - it might make a decent honours thesis to repeat the work and apply modern molecular techniques to the problem.

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Location information

• Coordinates 149.118333-35.385000
• Altitude 752.0m
• Maps Wanniassa Hill
• Places Tuggeranong DC, ACT

Species information

• Fungal gall of Exocarpus sp. Scientific name
• Common name
• Not Sensitive
• Local Native
• Non-Invasive

Sighting information

• 16 - 100 Abundance
• 11 Oct 2017 12:01 PM Recorded on
• Mike Recorded by