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InvisibleinskiM
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Re: Mushroom Hunting Term Of The Day [Re: Gravija]
    #17961433 - 03/15/13 07:10 PM (8 years, 1 month ago)

Quote:

Gravija said:
I am actually deeply interested in the mechanism behind pileus "rugosity"( I don't think that's a word), particularly in the genus Panaeolus. We see so many Panaeolus observations on this site and there doesn't seem to a straight forward rhyme or reason to why some pilei are rugose and others are not. antillarum, semiovatus, papilionaceus even cinctulus occasionally present as slightly rugose to extremely rugose. I don't think that moisture level has that much to do with it.
I believe that the mechanism is a response to environmental stimulation, Perhaps a defense against microorganisms, such as bacteria. Clearly an inner layer of tissue collapses to cause the wrinkling. What happens to it? Does it constrict and harden as skeletal hyphae do in lentinus?

I really hope that someone addresses this phenomenon someday! It's one of those things that always tickles my curiosity.



I believe the answer lies in the microscopic form of the pileipellis, in Psathyrella, Panaeolus and in Descolea the pileipellis is in the form of a derm, the cells are perpendicular to the surface of the pileus, as the cells dry unevenly the rugose characteristic is formed, in other genera that have a cutis the cells are arranged parallel to the surface of the pileus and usually form the macroscopic characteristics of a glabrous (smooth) pileus surface.


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InvisibleGravija
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Re: Mushroom Hunting Term Of The Day [Re: inski]
    #17961487 - 03/15/13 07:24 PM (8 years, 1 month ago)

I would expect to see more observations of old or dried Panaeolus with rugose pieli if this were the case!
I suppose it is far more simple, and therefore more likely that moisture content is the sole or primary factor responsible for pileus rugosity. Even so, I'd still like to know why these genera developed a derm instead of an epithelium or cutis!:grin:


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InvisibleinskiM
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Re: Mushroom Hunting Term Of The Day [Re: Gravija]
    #17961554 - 03/15/13 07:39 PM (8 years, 1 month ago)

It may not be the moisture content but rather the differing speed of growth of the individual cells that make up the pileipellis.

An epithelium is a derm, more correctly termed a polycystoderm, the terminal cells are inflated and in layered chains, this type of pileipellis can be observed nicely in the genus Cystodermella and Cystolepiota.


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InvisibleGravija
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Re: Mushroom Hunting Term Of The Day [Re: inski]
    #17961692 - 03/15/13 08:07 PM (8 years, 1 month ago)

So so so much to learn. Inski, can you recommend a good book or collection of books that discusses fungal biology?


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InvisibleinskiM
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Re: Mushroom Hunting Term Of The Day [Re: Gravija]
    #17961776 - 03/15/13 08:29 PM (8 years, 1 month ago)

Quote:

Gravija said:
So so so much to learn. Inski, can you recommend a good book or collection of books that discusses fungal biology?




It's a great field to be learning in because there is no chance of exhausting the information that could possibly be learned:cool:

Here is a good series of invaluable books that everyone should get.
http://www.amazon.com/How-Identify-Mushrooms-Genus-Macroscopic/dp/0916422003
Get the three books listed on this page that are "frequently brought together"


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InvisibleGravija
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Re: Mushroom Hunting Term Of The Day [Re: inski]
    #17961793 - 03/15/13 08:35 PM (8 years, 1 month ago)

Oh yeah! Kuo mentions these somewhere at ME. They must be pretty good if they've got the inski seal of approval.


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OfflineUser_7
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Re: Mushroom Hunting Term Of The Day [Re: Gravija]
    #17961831 - 03/15/13 08:44 PM (8 years, 1 month ago)

Quote:

Gravija said:
I'm pretty sure that bolete pileus is reticulate, as opposed to rugose. It looks like a network of ridges as opposed to wrinkles.



Cheers, I posted it because I wasn't too sure how to describe it. I didn't think reticulate was appropriate because it doesn't look veiny enough. Perhaps we have can cover reticulate another day.


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OfflineDr.Tooty
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Re: Mushroom Hunting Term Of The Day [Re: inski]
    #17962743 - 03/16/13 01:34 AM (8 years, 1 month ago)

Quote:

inski said:
Quote:

Gravija said:
So so so much to learn. Inski, can you recommend a good book or collection of books that discusses fungal biology?




It's a great field to be learning in because there is no chance of exhausting the information that could possibly be learned:cool:

Here is a good series of invaluable books that everyone should get.
http://www.amazon.com/How-Identify-Mushrooms-Genus-Macroscopic/dp/0916422003
Get the three books listed on this page that are "frequently brought together"



Those books looks awesome. I think I need them....Yes, ordered.


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Re: Mushroom Hunting Term Of The Day [Re: Dr.Tooty]
    #17963385 - 03/16/13 07:04 AM (8 years, 1 month ago)

Saturday 3/16/2013

caespitose

ses-pə-ˌtōs

Having a tufted form of growth. growing in clusters,  with the stems fused together or packed right up against one another at the base.

Gymnopilus "junonius"


Edited by Gravija (03/16/13 07:13 AM)


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InvisibleJoust
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Re: Mushroom Hunting Term Of The Day [Re: Gravija]
    #17963979 - 03/16/13 12:57 PM (8 years, 1 month ago)

Quote:

Gravija said:
Saturday 3/16/2013

caespitose

ses-pə-ˌtōs

Having a tufted form of growth. growing in clusters,  with the stems fused together or packed right up against one another at the base.

Gymnopilus "junonius"




Awesome term of the day :super:
:nyan:


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~~~~~~***Psilocybin Mushrooms***~~~~~~
_________A Practical Guide To Psilocybin Mushrooms_________

:sporedrop:                      "Think about the species, not your scale". -NeoSporen                      :sporedrop:

"Mr. Joust, I see you don't actually partake in the psilocin, but it looks like it may partake in you!" -Gojira


       


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InvisibleGravija
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Re: Mushroom Hunting Term Of The Day [Re: Joust]
    #17964001 - 03/16/13 01:04 PM (8 years, 1 month ago)

Pholiota aurivella, By Noah



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Invisiblebloodworm
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Re: Mushroom Hunting Term Of The Day [Re: Gravija]
    #17964547 - 03/16/13 03:58 PM (8 years, 1 month ago)

Gymnopilus spectabilis.



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OfflineHashfinger
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Re: Mushroom Hunting Term Of The Day [Re: bloodworm]
    #17964584 - 03/16/13 04:09 PM (8 years, 1 month ago)

Quote:

bloodworm said:
Gymnopilus spectabilis.





Those look spectabular! Did you consume?  :awesome:


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Species List (Georgia): Psilocybe caerulescens/weilii, Psilocybe atlantis/galindoi, Psilocybe cubensis, Psilocybe ovoideocystidiata, Psilocybe caerulipes, Psilocybe semilanceata, Psilocybe fagicola, Copelandia cyanescens, Panaeolus cinctulus, Panaeolus fimicola, Panaeolus olivaceus, Gymnopilus luteofolius, Gymnopilus aeruginosus, Gymnopilus junonius, Pluteus salicinus

(Ohio): Psilocybe ovoideocystidiata, Psilocybe caerulipes, Pluteus cyanopus, Pluteus salicinus sensu lato..., Panaeolus cinctulus, Gymnopilus luteus, Gymnopilus luteofolius, Gymnopilus junonius, Gymnopilus aeruginosus


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Invisiblebloodworm
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Re: Mushroom Hunting Term Of The Day [Re: Hashfinger]
    #17964588 - 03/16/13 04:10 PM (8 years, 1 month ago)

nope.
they are in the herbarium.
bc of that very reason, i have no idea if they are active or not.


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OfflineAnglerfishM
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Re: Mushroom Hunting Term Of The Day [Re: Gravija]
    #17964613 - 03/16/13 04:18 PM (8 years, 1 month ago)

Would it be reasonable to say that "fasciculate" implies "caespitose" but not opposite?



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InvisibleinskiM
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Re: Mushroom Hunting Term Of The Day [Re: Anglerfish]
    #17964638 - 03/16/13 04:26 PM (8 years, 1 month ago)

Caespitose is used to describe the growth habit of sporocarps, growing close together but not attached to each other.
Fasciculate is a descriptive term for sporocarp features, Fascicle describes a group of basidiocarps, hyphae or cystidia.


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Re: Mushroom Hunting Term Of The Day [Re: inski]
    #17964799 - 03/16/13 05:17 PM (8 years, 1 month ago)

It has always been my understanding that caespitose means the mushrooms all rise from the same primordia and are fused at the base. This is incorrect?


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Re: Mushroom Hunting Term Of The Day [Re: Gravija]
    #17966213 - 03/16/13 11:32 PM (8 years, 1 month ago)

Quote:

Gravija said:
It has always been my understanding that caespitose means the mushrooms all rise from the same primordia and are fused at the base. This is incorrect?



No, caespitose means growing in clumps/clusters but not joined.
When they are not clumped but still in groups they are gregarious.
When they are joined at the base they are connate.


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Re: Mushroom Hunting Term Of The Day [Re: TimmiT]
    #17966379 - 03/17/13 12:26 AM (8 years, 1 month ago)

Quote:

TimmiT said:
Quote:

Gravija said:
It has always been my understanding that caespitose means the mushrooms all rise from the same primordia and are fused at the base. This is incorrect?



No, caespitose means growing in clumps/clusters but not joined.
When they are not clumped but still in groups they are gregarious.
When they are joined at the base they are connate.



:super:
:nyan:


--------------------
~~~~~~***Psilocybin Mushrooms***~~~~~~
_________A Practical Guide To Psilocybin Mushrooms_________

:sporedrop:                      "Think about the species, not your scale". -NeoSporen                      :sporedrop:

"Mr. Joust, I see you don't actually partake in the psilocin, but it looks like it may partake in you!" -Gojira


       


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Offlinewintersbefore
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Re: Mushroom Hunting Term Of The Day [Re: Joust]
    #17967347 - 03/17/13 06:47 AM (8 years, 1 month ago)

Sunday 3/17/2013

lamellula (plural lamellulae).

"Short gills that extend only part way to the stalk." "The presence or absence of short-gills is sometimes important in identifying mushrooms, as is the arrangement of the short-gills (randomly, in tiers, only occurring near the cap margin, and so on)"



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Mushrooms, Mycology and Psychedelics >> Mushroom Hunting and Identification

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