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About jacquemontii

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  1. Can anyone ID this tree please? A group of 3 planted in a city centre location. They have been lopped and topped within the last year, so the whole crown comprises new growth. Quite large alternate serrate leaves (10x20cm).
  2. Does a local authority have the ability to TPO trees in a new landscape scheme even though the trees have yet to be planted? This is to protect trees being removed by the future residents of a housing development, rather than to replace any existing TPO trees. If this is the case could anyone please point me to the section of TPO legislation which refers to this?
  3. I recently surveyed a small pollarded lime with a stem diameter of 500mm (RPA radius 6m). As the tree is being well managed with a smaller crown size relative to the trunk (crown is 8m high, 3m spread in all directions) I'm now considering if this should be reflected in a reduced size of the RPA? I'm thinking along the lines that root growth is limited by a reduced supply of carbohydrate as a result of crown pruning (root:shoot ratio as described in 'TREE ROOTS IN THE BUILT ENVIRONMENT' Roberts et al, 2006). Has anyone else adjusted the size of an RPA in a BS5837 survey based on the management of the tree?
  4. Check out this fella flexing his 'guns'
  5. I know the kind of thing you mean Mick, but in this instance I think its the real deal. The tree is in Studley Royal deer park, just been doing a bit of research and it was apparently one of the largest cherry trees in UK until the crown collapsed a few years ago! Surprising as I've always considered cherry to be a relatively short lived species...couple of other photos here
  6. Found this interesting veteran Prunus avium in the local deer park. Surviving with one branch and possibly some natural layering occurring.
  7. Just found this useful case study: http://www.geosyn.co.uk/wp-content/uploads/2016/08/Case-Study-Cellweb-TRP-69-Church-Lane-Extended-CS-1.pdf
  8. What does anyone consider to be the maximum depth of build up for a ‘no dig’ permeable drive construction without causing compaction damage to the soils below? Currently looking at a scheme to create a new drive (using 3D Cellular Confinement System products backfilled with clean aggregate) which crosses through root protection areas of mature birch and sycamore. The ‘no dig’ element is not a problem as the site levels are lower than the adjacent highway, so it will be possible to tie in to the road without any excavation. However, the engineering solution (designed by the project engineer) will create a level change of 700mm above the existing soils at one particular point along its course. My feeling is that at a depth of 700mm the weight of stone will consolidate the soil of the RPA below, regardless of being laid onto Geo-grid/geo-web products. After all, tree roots tend to grow in the top 600mm to 1m of soil, because at greater depths the conditions become less favourable…..I think I may have answered my own question….
  9. Thanks. I was using Lonsdale as a guide to common hosts (no mention of H.chestnut in there), but now Ive got home and checked all my other guides, of course they all mention chestnut as a host! I had no idea about it changing name though...where do you check this? Must admit we were referring to it as Polyporus in a recent assignment.
  10. Thanks paul, that's my guess too. I think the tree has been initially weakened by bleeding canker, which I think would then allow the colonisation of a sapwood exposed strategist, i.e Polyporus squamosus.
  11. Found these lying around the base of a horse chestnut. I think they look like brackets of Polyporus squamosus, which have dropped off the stem, rather than being from the roots. Not sure if this is commonly found on Aesculus though?
  12. Oh dear....can we rename the thread before anyone notices!? I took these back in the summer, which I think are dryadeus? different tree though...
  13. Found this fungus today (what I believe to be a type of Ganoderma) on many mature oaks throughout the local deer park. Thought I would share these photos which are of the best example I could find.
  14. Thanks, not familiar with this one, although I've just found it in Mattheck's Encyclopedia...is it common?


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