Observation 184020: Pleurotus ostreatus (Jacq.) P. Kumm.

When: 2014-10-19

Collection location: Prishakhtinsk forest, Karaganda town vicinity, Kazakhstan [Click for map]

49.90236° 73.03411° 544m

Who: Igor (Igor_Yevdokimov)

No specimen available

Pleurotus ostreatus (Jacq.) P. Kumm. Tricholomatace, Agaricales (Oyster Mushroom, Вешенка обыкновенная).
Light-brown crowded mushroom clusters at deciduous wood.
Cap: 5-20cm wide, circle or asymmetrical up to fan-shaped or spoon-shaped, thick gently convex and margin curved in up to flat rarely sunken with wavy margin when old, light grayish-brown, light brown, yellowish-brown, medium brown and chocolate brown, odor is pleasant. It has radial cracks when wet weather changes to very dry with cool nights.
Flesh is white, yellowish-white when old mushroom died.
Gills: descending stalk (60-80%of stalk), narrow when young up to broad, close and white; then yellowish-white up to dull yellowish-brown when died and dry.
Stalk: 2-6cm long (sometimes absent in crowded clusters), 1-3cm thick and often curved up and sometimes branched; white, then yellowish- or light brownish-white, it stiff when old. Stalk is slightly or much off centers up to rudimental at a cap edge.
Edibility: good and tasty.
Habitat: scattered small groups or crowded clusters on the old maple (Acer negúndo) and elm (Ulmus densa) or partially rotten trunks or stumps in pine-tree forest.
Season: July – October.


Oyster mushroom_767.jpg
On elm (Ulmus densa)
Oyster mushroom_767_1.jpg
On elm (Ulmus densa)
Oyster mushroom_767_2.jpg
On elm (Ulmus densa)

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Created: 2014-10-19 12:58:45 CDT (-0400)
Last modified: 2014-10-19 12:59:06 CDT (-0400)
Viewed: 22 times, last viewed: 2017-06-19 03:48:12 CDT (-0400)
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