Observation 83182: Mycena leptocephala (Pers.) Gillet

When: 2011-11-22

Collection location: Hillsboro, Washington Co., Oregon, USA [Click for map]

Who: Sava Krstic (sava)

Specimen available

Growing on wood chip mulch, under shrubs.

Spores 8-10 × 5-6 microns. Basidia 4-spored.

Odor and taste mild, raphanoid (?), vegetable-like, not unpleasant. My low confidence vote is because of this odor: in the literature, the odor of M. leptocephala is typically described as nitrous/alcaline. (See http://home.online.no/~araronse/Mycenakey/leptocephala.htm)

The site is about 150 m from where the “leptocephala” in observation 82776 was found a few days earlier. The two are probably not the same because of the different habitat, odor, and spore size.

Species Lists


A caulocystidium and a spore.
Cheilo- and pleurocystidia.
Hyphae of the pileipellis.

Proposed Names

57% (1)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Sava Krstic (sava)
2011-11-26 16:39:47 CST (-0600)

It turns out there are two: Journal of Irreproducible Results and Journal of Improbable Research. I learned about the latter via Leslie Lamport’s web page; he publihed a funny article “On hair color in France” there.

Another mathematical method for catching a lion uses inversion in a circle: build a circular fence and apply this transformation with respect to this circle. Everything outside gets mapped inside… We heard of this in high school when they taught us geometric transformation.

This would be a good submission to the Journal of Unreproducible Results [edit]
By: R. E. Tulloss (ret)
2011-11-25 16:08:34 CST (-0600)

Journal of Unreproducible Results…

I think I’ve got the name correct…or it could have been the Journal of Irreproducible Results. They used to publish things like electronmicrographs that had a shape suggesting a silhouette of Mickey Mouse, etc….as well as very funny articles—-such as how persons of different scientific disciplines might catch a lion.

I recall that a COBOL programmer would divide all of Africa into Lion-size squares on a grid and then search all the squares beginning with the southeasternmost one. The program would terminate when a lion was found in a grid square. In case there were no lions or the program had a bug, a lion would be placed in a grid square in Cairo in order to force termination. That said a lot about business programming in those ancient days.

A student of optics directed a lion into a cage at the focal point of a parabola made of catnip plants.

The student of Real Analysis used a Riemannian method: Draw and arbitrary east-west line across Africa. The lion is either to the north or south of that line. Say it is to the North. Divide that part of Africa by a north-south line. The line is either to the east or west of that line. Say to the east. Divide this region of Africa by a east-west line. Continue until the remaining part of Africa is a convenient size for a lion cage. Build a cage around that region. You have caught the lion…at least in principle.

There were quite a few methods put forward. I used to have a few old copies of the Journal. I wonder where they are….


The face
By: Sava Krstic (sava)
2011-11-25 00:36:49 CST (-0600)

I said “Picasso” too when I saw it.

That looks like a face painted by Picasso.
By: Christian (Christian Schwarz)
2011-11-25 00:21:57 CST (-0600)

Created: 2011-11-24 23:42:29 CST (-0600)
Last modified: 2011-11-24 23:49:49 CST (-0600)
Viewed: 141 times, last viewed: 2017-09-14 03:24:42 CDT (-0500)
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