Mushroom ID?

Thom O'Dell odellt at fsl.orst.edu
Mon Aug 14 18:13:18 EST 2000


The definitive character for Bondarzewia: spores with amyloid (dark-blue 
reaction) in melzers reagent (iodine sometimes works in a pinch).


Thom O'Dell

odellt at fsl.orst.edu
or
todell at fs.fed.us

----------
In article <20000805065444.24218.00000571 at ng-ck1.aol.com>, basidium at aol.com
(David W. Fischer -- www.fischer.nu) wrote:


>>Berkley's polypore doesn't have mazed-like pores unless there's a variation
>>out
>>there I haven't read about
>
> The pores of Berkeley's Polypore (Bondarzewia berkelyi)---not the spelling:
> Berkeley [3 Es] was the man's name---like most large fleshy polypores, e.g.
> Laetiporus, Meripilus, and many others of lesser dimensions, often become
> maze-like in age; this is a common developmental character.  It can be a
useful
> and interesting field character.  On such specimens, if one studies the newest
> pores at the cap margins, it is easy to see that they are round (or, in some
> cases, more-or-less polygonal).  As the cap grows, the "older" pores nearer
the
> point of attachment (to the stalk or to the substrate) typically show
> progressive tearing of the ends of the tube walls; how maze-like they become
> varies depending on environmental factors, e.g. temperature, humidity, wind,
> direct sunlight.
>
> On specimens of polypores with typically gill-like hymenia---e.g. Lenzites,
> Daedalia, Daedaliopsis, Gloeophyllum---if one uses a loupe to examine the
pores
> nearest the cap edge, one will see that the "gills" began as true pores.
>
> This is a wonderful example of convergent evolution.  When most of a
polypore's
> tube-walls' ends split in such a way that the pores become labyrinthine or
> "lamellate," the hymeium looks much like that of an agaric, and has the same
> spore-producing advantages as a true gilled mushroom---this despite the
distant
> evolutionary relationships between the different fungi.
> David W. Fischer
> Coauthor, "Edible Wild Mushrooms of North America" and
>    "Mushrooms of Northeastern North America"
> E-mail: basidium at aol.com
> Website: http://members.aol.com/mycology
>
> 







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