Jump to content

Log in or register to remove this advert

Fungus

Veteran Member
 View Profile  See their activity

  • Posts

    2,833

  • Joined

  • Last visited

 Content Type 

Everything posted by Fungus

  1. Fungus
    Matt, Or provided the annual brackets are spongy and soft, it is a Postia or Tyromyces species, which depending on the species, causes a white or a brown rot.
  2. Fungus
    Sean, Nice pictures , well documented. By the way, Daldinia concentrica always "kicks off" in this purplish colour.
  3. Fungus
    Some examples of succession or co-existence of two species of fungi are : - Bjerkandera adusta, a saprotrophic species, which causes a species specific type of white rot with self-produced organohalogens (poly-aromatic hydrocarbons), on beech often followed by Trametes gibbosa, which then starts as a parasite of the mycelium of B. adusta (see first photo). - Trametes versicolor sometimes followed by Lenzites betulinus, which then starts as a parasite of the mycelium of T. versicolor. - Yelly fungi, such as Tremella encephala, a parasite of the mycelium of Stereum sanguinolentum and T. mesenterica, a parasite of other Stereum spp. and of Peniophora species. - Chroogomphus rutilus and Gomphidius glutinosus, parasites of the mycelia of ectomycorrhizal Suillus and Rhizopogon species and Gomphidius roseus, a parasite of the ectomycorrhizae of Suillus bovinus. - Lycoperdon pyriforme, which sometimes fruits on or near (hidden) old crusts of Ustulina deusta (see second photo of the base of a Tilia).
  4. Fungus
    David, Forty years ago, I was a youngster in my early twenties and the vandal was a senior forest ranger over 50 years old, who threatened to fine me if I ever was caught going off the path (and taking pictures) or otherwise "damaging" the forest floor again and he laughed me in the face when I told him what the detrimental effects of his destructive behaviour were .
  5. Fungus
    Sean, You're welcome. And here is an example of an old Phellinus igniarius with recently receeding yearly layers (emergency reproduction) typical of willow, of which the heartwood behind the bracket has been white rotted and decomposed completely.
  6. Fungus
    I once met a Dutch forest ranger and "manager", who said, that all mushrooms fruiting on the forest floor in the vicinity of trees were parasites and had to be removed to protect the roots of the trees and keep the trees from dying, after which he started kicking Amanita's, Boletes, Lactarius and Russula's about !!!
  7. Fungus
    In my Album (Tilia + Ganoderma), Tony asked me to describe the characteristics of the sterile emergency reproduction "lumps" of perennial Ganoderma's, such as G. lipsiense and G. australe. Sometimes they have a smooth greyish to pale brown surface, sometimes a greyish, partially blackening and cracking surface (see photo of G. lipsiense on beech, also showing Ustulina deusta to the right), they can be up to 10-15 centimetres in diameter and they never have developed fertile layers of tubes with pores.
  8. Fungus
    Jack, The main macroscopical difference between Phellinus igniarius and P. robustus is the shape of the perennial brackets. Older, up to 40 x 20 x 15 cm big brackets of Phellinus igniarius mostly are more bracket-like shaped with broad annual growth (see first photo), whereas older up to 25 x 10 x 20 cm big brackets of P. robustus mostly are more compact bulbous to hoof-shaped with more regular annual growth (see second photo). But 100 % sure : microscope.
  9. Fungus
    David, Eating mushrooms is comparable to consuming insects such as locusts, because fungi are closer related to insects then to plants, as they both depend on the photosynthesis by green plants for their energy (sugars) and both have chitine as a major element of the walls of their cells and the outer layers of their "bodies", which is a sugar polymere "derived" from the sugar polymere cellulose.
  10. Fungus
    Sean, I agree on Phellinus , but would choose P. robustus as a more likely candidate. The main difference in the perennial brackets of Ganoderma's, like G. lipsiense and the perennial brackets of Phellinus species, such as P. robustus, is that you can push in/down the crust of Ganoderma's, because of the soft tissue within, and you can drive nails into wood with P. robustus.
  11. Fungus
    Apart from a lot of Polyporus squamosus, the yellow species probably is Pleurotus cornucopiae or an(other) "escape" from a nursery such as P. citrinopileatus, both (also) cultivated for the human food chain.
  12. Fungus
    Judging by the whitish to cream colour of the hymenium, so would I : Trametes versicolor it is .
  13. Fungus
    This is not a mycelium, but one of the many saprotrophic Aphyllophorales without pores and tubes or spines living in/on/of bark without damaging the condition of the tree, of which it is impossible to give a name without using a microscope. A wild guess would be, that it is a Botrybasidium or Hyphoderma species.
  14. Fungus
    Tony, A bit more info might be helpful : annual/perennial, soft/brittle or tough tissue, smell, tree species, and anything else you might think of to keep you (and me) from crying .
  15. Fungus
    Tony, 1. Probably an "escape" from a nursery of Pleutotus species like P. ostreatus fm. Florida, of which the mycelium does not need a frostbite to fruit, or P. citrinopileatus, both "created" and cultivated for the human food chain. 2. Gymnopilus sapineus (= G. penetrans). 3. Hard to say without knowing the colour of the spores and whether the stem has a bulbous base. Could f.i. be a Lepiota or perhaps an Inocybe.
  16. Fungus
    David, No need to send a sample to Kew, this is a (partially) sterile "tuber", i.e. the typical form of emergency reproduction of Daedalea quercina, as it is sometimes seen on Quercus robur, but more often is documented from Q. rubra. A warning : the mycelium fruits in this deformed and half to complete sterile way once the substrate, the heartwood of the tree, has completely been brown rotted and there is to little "nourishment" left to produce a normal fertile perennial bracket. Especially at great hight affected Q. rubra can be very dangerous. I'll attach one of my photo's of the phenomenon as an illustration.
  17. Fungus
    Sean, The macroscopic characteristics and the host (beech) point in the direction of Ganoderma lipsiense (= G. applanatum), but without the presence of nipple-shaped galls of Agathomyia wankowisczi, microscopic identification by measering the spores is needed to be 100 % sure.
  18. Fungus
    Tony, Helas, both times wrong. The first one is Pholiota squarrosoides, an extremely rare species from very old forests with beech and abies, i.e. the Bavarian Biosphere Reserve and National Forest of Zwieseler Waldhaus (Germany), of which the photo of Hericium flagellum also originated. And the second one is Pholiota limonella, an also extremely rare species living on fallen trunks of very old poplars, only once found by me in The Netherlands.
  19. Fungus
    Hi Matt, The first two (or three ?) photo's probably show Anthrodiella semisupina, which has as a field identification characteristic, that you can not bite through the bracket with your front teeth. The following three photo's show the saprotrophic Psilocybe (= Hypholoma) fascicularis, of which the mycelium produces organohalogens (poly-aromatic hydrocarbons) to decompose the wood with.
  20. Fungus
    Tony, So what names would you give to the following two Pholiota's ?
  21. Fungus
    Are you sure it's not dogshit your pointing at ?
  22. Fungus
    Looks dramatic, but from the photo alone I can not determine whether it is caused by Auricularia, or f.i. by a parasitic Armillaria, because I have seen quite a few comparable disruptions of woundwood caused by as cambium killers operating rhizomorphs of A. ostoyae.
  23. Fungus
    Tony, Looks like it, I've often seen similar root and trunk base decay caused by C. fusipes in Q. robur and Carpinus forests in the Eifel, where I, until last year, lived for 8 years, but without fruiting 100 % proof is missing.
  24. Fungus
    Sean, I think Tony meant, please also show an image from the topside and I would like to know what tree species it is on, is pink the natural colour or is it from sunlight falling through and does the downside have pores or is the hymenium smooth ?
  25. Fungus
    Tony, Thanks , very valuable documentation of quite impressive damage caused by such an insignificant fungus.

About

Arbtalk.co.uk is a hub for the arboriculture industry in the UK.  
If you're just starting out and you need business, equipment, tech or training support you're in the right place.  If you've done it, made it, got a van load of oily t-shirts and have decided to give something back by sharing your knowledge or wisdom,  then you're welcome too.
If you would like to contribute to making this industry more effective and safe then welcome.
Just like a living tree, it'll always be a work in progress.
Please have a look around, sign up, share and contribute the best you have.

See you inside.

The Arbtalk Team

Follow us

Articles

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

  I accept