Observation 134856: Pluteus Fr.
When: 2013-05-29

Notes: Massive fruiting on Acer macrophyllum. Same as Obs. 134759.

Scales on cap small, appressed. Stipe: stout, becoming larger towards the base, white or off-white. Annulus: none.

Images

332427
Fruiting from across the street.
332428
Fruiting from middle of street.
332429
Fruiting from curb.
332430
Fruiting from fence with telephoto lens.
332431
Close-up of caps 6 inches across the top, taken from fence with telephoto lens.
332432
Close-up of cap with appressed fibrils near cap center.
332433
Gills free, honey-brown tinted, close but not crowded.
332434
Another close-up of gills.
332435
Honey-brown cap, fibrils on cap appressed, obscurred somewhat by recent rains.
332436
Cap flesh and stipe mostly white. No annulus.
333433
Massive spore print. Print extends upward 2mm from paper.
333526
Spore print colors as dried range from light buff to nearly black, as seen here. Moisture content of spores makes considerable difference in color.

Proposed Names

68% (5)
Eyes3
Recognized by sight
49% (4)
Recognized by sight
57% (1)
Eye3
Used references: Arora, Mushrooms Demystified, p. 256, under P. cervinus. Stipe 3 cm diameter.

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Agreed.
By: Daniel B. Wheeler (Tuberale)
2013-05-31 21:21:05 CDT (-0400)

Sorry, all.

Took spore print. Spores massive, defining space between gills. Spores accumulating to 2mm depth. Splotchiness on gills are actually thin layers of spores. In mass and dried, spores are buff to coffee au lait to light brown. No hint of red in massed spores. I’m guessing this may be Pluteus magnus, but need confirmation. Anyone want to scope this out? I’ve got several million spores in the spore print.

Daniel…
By: Richard and Danielle Kneal (bloodworm)
2013-05-29 17:57:04 CDT (-0400)

all u have to do is look at this gill attachment to know this is not Armillaria…

Look at the last pictures
By: Christian (Christian Schwarz)
2013-05-29 17:24:51 CDT (-0400)

Pink spore blushes (unlike in Armillaria) on the gills (which are free, unlike in Armillaria).

The stipe is pure white and stout even in age, unlike those of A. tabescens which have tapered and upwards-darkening stipes in age:
http://mushroomobserver.org/image/show_image/174797?obs=79540&q=1HBIR

Also, there’s really no true fibrils or scales on these caps. Just cracking of the pileipellis, which is a cutis.

Last but not least, look at the map below. A first record for any pacific state in North America really begs for better evidence:
http://mushroomobserver.org/name/map/1461?q=1H9wT

Original Acer macrophyllum
By: Daniel B. Wheeler (Tuberale)
2013-05-29 16:01:15 CDT (-0400)

was about 5 feet across.

Created: 2013-05-29 15:00:53 CDT (-0400)
Last modified: 2013-06-02 22:47:45 CDT (-0400)
Viewed: 131 times, last viewed: 2016-11-19 23:20:28 CST (-0500)
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