mushroom for id

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ajinkya gadave

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13-Jul-2010, 11:29:53 pm13/07/10
to Indian Trees
i found this mushroom at khadakwasala dam road .
mushroom 1.JPG
mushroom 2.JPG

Dinesh Valke

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14-Jul-2010, 12:25:56 am14/07/10
to ajinkya gadave, Indian Trees
... would this be Macrolepiota procera ?
Some days back had posted similar mushroom, sighted at Lion's point, Lonavala.
Regards.

tanay bose

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14-Jul-2010, 12:34:09 am14/07/10
to Dinesh Valke, ajinkya gadave, Indian Trees
Macrolepiota procera indeed Dinesh ji
I identified your mushroom
turning to mycologist !!!
I am very happy to see


Tanay

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Tanay Bose
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Inderjeet Sethi

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14-Jul-2010, 2:15:54 am14/07/10
to tanay bose, Dinesh Valke, ajinkya gadave, Indian Trees
Looking at the colour of the pileus it can be Macrolepiota rhacodes (shaggy parasol). Pls confirm
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Dr.Inderjeet Kaur Sethi
Associate Professor
Department of Botany
SGTB Khalsa College
University of Delhi
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nabha meghani

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14-Jul-2010, 6:03:17 am14/07/10
to Inderjeet Sethi, Dinesh Valke, ajinkya gadave, Indian Trees
I also was not sure of the ID.
 One feature of Macrolepiota rhacodes (shaggy parasol) is that its stipe is slender, but bulbous at the base. The Foto doesn't show tha base.
Feature of Macrolepiota procera is that the ring is movable, It has a pleasant nutty smell. When sliced, the white flesh may turn a pale pink, don't know if it is so.
 
So can't make up my mind.
Regards
Nalini
 
----- Original Message -----

tanay bose

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14-Jul-2010, 8:18:59 am14/07/10
to nabha meghani, Inderjeet Sethi, Dinesh Valke, ajinkya gadave, Indian Trees

Dear Nalini ji ,

The base of the stipe is quite visible in the photo and its doesn’t show the characteristic bulbous nature which is a diagnostic character of Chlorophyllum rhacodes [or "Lepiota rhacodes" or "Macrolepiota rhacodes" in the past] another very important point to consider is the colour of the stipe in C rhacodes the stipe is completely white in colour and in Macrolepiota procera it is brown, the mushroom in the photo shown a brown colouration of the stipe. The stipe is much thicker in case of C rhacodes (2-3.5 cm) in contrast to M procera (0.5-1.5 cm).

The scales on the cap in C rhacodes are much larger in size and nearly cover up the complete upper surface where as in M procera it is restricted to the central region of the cap mainly the marginal portions have scales which are tiny in size. A prominent central bump is visible in M procera absent in the other one.

The moveable ring is visible in both the species hence cant be considered as a diagnostic character at all, but in C rhacodes the rig is much bigger in size.

Hope this few points will help to discriminate between this two species.

Hence this mushroom is Macrolepiota procera for me as it supports the character.

 

Best Regards

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