Strange callus and poor growth

[Graham]

Few pics from a job started today clearing out some 60s landscaping. These are from ash trees which are c45 yo. They seem to have topped out at 12 feet max with a dia of 8". Maybe poor provenance or the ground conditions don't suit. Other spp seem to have matured ok.

 

 

 

 

 

[Bundle 2]

Strange growths...probably chrlorophyll in the bark giving it that color. Abnormal cell division perhaps....? From the images, this growth characteristic is all located on wound/infection courts?

Or are you suggesting that the Ash's inability to grow in height and stature is an associated issue?

[Graham]

Strange growths...probably chrlorophyll in the bark giving it that color. Abnormal cell division perhaps....? From the images, this growth characteristic is all located on wound/infection courts?

Or are you suggesting that the Ash's inability to grow in height and stature is an associated issue?

 

Some of the growths seem to emanate from previous wounds but not all. Images don't reveal that too well. At first glance the callus formations look like depressed

brackets.

 

I don't think their size/growth is connected to this but more likely their provenance. I would guess that they would have been supplied by the same grower whose seed source was questionable.

[elicokiz]

Hi Folks is that a spheroblast? a dormant bud whose diameter is increased every year by another ring of including annual growth?? judging by the location of the removed branch I would guess it was a lateral bud that did not develop?? just a guess???

 

dave

[Tom2020]

Did you find the quid in the tree as well?

 

 

Cracking top pic tho

[Bundle 2]

Dave...Have you any references for the the term "spheroblast" ?

[chris cnc]

i have heard of spheroplasts, small spherical growths similar to warts, growing on the stem or main branches of broadleaves. usually no bigger than a marble in my experience. can be broken off quite easily. i have seen them most often on beech.

[chris cnc]

saying that, i cant find a reference to "spheroplasts on trees" on the internet, so maybe someone's got the name wrong

[stihllearning]

i believe the term spheroblast is what americans call meristematic cell disorders

[Bundle 2]

I understand spheroplast as a scientific term but that it is applied to describe the loss of cell wall structure....

Spheroplast - Wikipedia, the free encyclopedia

 

Spheroblast appears to be an invented term...( I can find no reference on internet either)

I do know what you mean chris cnc...I have a couple which I cleaned up and oiled and they sit on a mantle piece as " oddities/junk". They were taken from the floor around cedars....

Oh well....any one else with any thoughts as to either the meristematic disruptions or spheroplasts?