When: 2009-03-25

Collection location: Canyon, Contra Costa Co., California, USA [Click for map]

Who: Richard Sullivan (enchplant)

No specimen available

This looks like the same thing Debbie collected ( Her photo was better!)


I did collect it and scope it.

I had also observed it before at another location and Clive was kind enough to suggest the name


Species Lists


This is viewed at 1000x, each sphere is 7 -8µm in diameter
This shows the matrix with spores at 1000×. 1% phloxine stain used
This shows the matrix with spores at 1600×. 1% phloxine stain used

Proposed Names

85% (1)
Recognized by sight

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

= Observer’s choice
= Current consensus


Add Comment
ID’ing Arcyria
By: Clive Shirley (myxo)
2009-03-28 13:59:00 MDT (-0600)

I think this is going to an interesting challenge :)

Richard we will need to know one or two other things beside what the capillitium looks like. The first is how it the capillitium attached to the calyculus. The calyculus is the disk shape cup at the top of the stalk (all that remains of the peridium). It will be ether

1. Firmly attached over the entire surface
2. Loosely attached just to the center
3. Not attached at all and easily breaks free

Also what size are the spores?

Better Microscopy
By: Richard Sullivan (enchplant)
2009-03-28 06:52:04 MDT (-0600)

Dimitar would have been horrified by the first 2 images of the matrix. So I had to add some stain to give a little color to these added images.

great job, amazing details.
By: Debbie Viess (amanitarita)
2009-03-27 22:08:13 MDT (-0600)
By: Richard Sullivan (enchplant)
2009-03-27 20:10:23 MDT (-0600)
Here are some strands of the matrix that the “spores” were released from. Spaghetti with spikes.

Have at it Clive!

that is so cool! It’s almost like Huck and Canyon are one contiguous zone, eh? ;)
By: Debbie Viess (amanitarita)
2009-03-27 19:08:49 MDT (-0600)

for those unfamiliar with both or either, Huckleberry at the very edge of Oakland is at the top of a fairly dry ridge and down into a wet canyon, lots of fruiting huckleberry and manzanita, but into the Bay zone below, whereas Canyon is at the bottom of the same canyon; much wetter and with redwood.

I don’t know beans about slime molds, but according to Clive, to get it to sp. we need to be looking at the ornamentation of the elongate cells found between the spores, not the spores themselves. A spore matrix as it were, if my fungal dictionary has me on target.

BTW your shot is plenty fine, and I am very grateful for the opportunity to have hunted with you last weekend. it was fun, and fungal. can’t make those pretty pictures w/out beautiful subjects!