When: 2014-09-19

Collection location: UC San Diego, La Jolla, California, USA [Click for map]

Who: Jacob Kalichman (Pulk)

No specimen available

just practicing microscopy…


fb associated with the next 3 images

Proposed Names

-19% (5)
Recognized by sight
-64% (3)
Recognized by sight: If the spores are ornamented when mature
27% (3)
Recognized by sight
Based on microscopic features: cheilocystidia is wrong for Panaeolina.
47% (2)
Recognized by sight
Based on microscopic features: Relatively broad cheilocystidia.

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

= Observer’s choice
= Current consensus


Add Comment
Example of sulphidia
By: Rocky Houghtby
2014-09-26 18:11:25 CDT (-0400)


Scroll down the comments, they are the cells that resemble turkey legs.

more micro?
By: Jacob Kalichman (Pulk)
2014-09-26 18:01:15 CDT (-0400)

I can take a bunch more spore pics, and measure them… For sulphidia, am I just looking for distinct yellowish cystidia?

Spore color?
By: Byrain
2014-09-26 11:38:13 CDT (-0400)

Can you try to photograph more spores and describe the ornamentation better? Stuff like if the germ pore is oblique in the side view or not (Can be a very subtle characteristic) and spore size can help a lot. There is nothing about the cheilocystidia that indicates Panaeolus over Panaeolina, but the blackish gills and seemingly smooth spores seem to point towards Panaeolus. The broad cheilocystidia would be consistent with P. cinctulus, but I wouldn’t vote strongly on that name without more details. Are there any sulphidia?

By: Rocky Houghtby
2014-09-26 08:30:14 CDT (-0400)

For adding a picture of the specimen, pulk. I can see now why you were insistent about Panaeolina. the spores are smooth though, right?

Psathyrella was just a suggestion
By: Rocky Houghtby
2014-09-26 03:14:46 CDT (-0400)

Panaeolina have very verrucose spores. If the spores are smooth then Panaeolus is likely.

By: Jacob Kalichman (Pulk)
2014-09-26 02:54:47 CDT (-0400)

I’d like to believe I can say it’s 100% not Psathyrella. I just picked up some Panaeolina/us in the grass on the way while walking to the lab…

I’ll try to remember to note the make/model next time I go in.

By: Rocky Houghtby
2014-09-26 02:36:58 CDT (-0400)

make and model microscope are you using?