Friday, 10 April 2015

Chesser 09/04/2015

Psathyrella spadiceogrisea

Almost immediately identified on field characters and time of year, but we persevered with keying anyway. After some investigation it seemed that we would never have identified this species that way. Noted was the cellular nature of the cuticle which narrows down your field of search greatly (though not examined or at least photographed). Also worth noting was that the key required this species to be "not radially grooved" although the species descripton calls it "striate". Hmmm. Three dimensionally striate?

Lichenomphalina ericetorum
Our next species has a checkered past with its lichen association causing some trouble. In fact to record this I had to call it Lichenomphalia umbellifera. There's an interesting blurb about it here: link. Three noteworthy features are the decurrent gills, the dark area at the base of the gills on the stipe and the algae at the base of the stipe. This one was from Mossmorran in Fife


Trametes ochracea
Another one from Cullaloe and another species for which  field characters win the day. Spore checking was done for shape and size. If you cut into the fb you can see there's no black line as there is in T.versicolor

Hyphoderma praetermissum
A species we've seen many times before. This was on decorticated wood and formed a thin waxy rosaceous layer over the wood . Sphaerocysts were not found but two types of cystidia were located and spores were ok. I didn't note where this one was from - perhaps Bawsinch.

Botryobasidium subcoronatum
An old favourite, quickly processed and identified on a brief description

Tubulicrinis subulatus
Another one seen before but not at Chesser meetings, this is a fine performer under the microscope, and the cystidia are visible under a hand lens

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