Created: 2007-10-16 08:11:31
By: (eukaryotica)
Summary: Slime mould

Thanks Darvin. While the slime mould was photographed in Colombia within about 1000 miles from the equator, it was at about 11,000 feet in Murillo, and the climate is not tropical, but mild to cold year round, with mixed coniferous and hardwood forest. It would be interesting to take another look microscopically. I will be back there next summer.

Created: 2007-10-16 07:58:49
By: (eukaryotica)
Summary: H. cantharellus

Thanks Nathan. I am using field guides and the Smithsonian guide and Arora both mention wood as a substrate. I am more concerned about the concolorous gills and the weak decurrence. The gills should be lighter I think, and the photos I have seen descend the stipe more. But I will stick with this until I can see the references you gave me.

Created: 2007-10-15 22:23:37
By: Nathan Wilson (nathan)
Summary: Reference for Chrysomphalina

I haven’t read any of them, but here are some references that Mike Wood sent me. It looks like the come from a list that Dennis Desjardin at SFSU put together.

From REFERENCE LIST FOR TAXONOMIC TREATMENTS OF AGARICS (Desjardin):

Norvell, L. L., S. A. Redhead, & J. F. Ammirati.
1994. Omphalina sensu lato in North America 1-2.
1: Omphalina wynniae and the genus
Chrysomphalina. 2: Omphalina sensu Bigelow.
Mycotaxon 50: 379-407.

Redhead, S. A. 1986. Mycological observations
17-20: Nomenclatural notes on some omphaloid
genera in Canada: Chrysomphalina, Rickenella,
Gerronema, Omphalina. Acta Mycol. Sinica,
Suppl. I: 297-304.

Clemençon, H. 1982. Kompendium der
Blätterpilze Europäische omphalinoide
Tricholomataceae. Z. Mykol. 48: 195-237.

Kost, G. 1986. Zur Gültigkeit der Gattung
Chrysomphalina Clç. Z. Mykol. 52: 233.

Mike also mentioned “Both Hesler and Smith (No. Am. Sp. Hygrophorus) and Largent note that H. cantharellus sometimes grows on wood.”

Created: 2007-10-15 17:33:28
By: Darvin DeShazer (darv)
Summary: White slime mold

The white slime mold on the wood is Ceratiomyxa fruticulosa, which is common in the tropics.

Created: 2007-10-15 04:24:17
By: (eukaryotica)
Summary: H. cantharellus on wood

I understand I am jumping the gun on all of my identifications, since I don’t have microscopic or nucleic acids work, however H. cantharellus is as close as I can come right now. I am also worried about the concolorous cap, stem and gills. It is omphaloid, and grows on wood, and the gills are not strongly decurrent, however these characteristics are included in photos and descriptions of the species both in references and in Kuo. I am interested in the comment about growing on wood. is there a reference I can go to? Thanks for the comment.

Created: 2007-10-14 21:19:29
By: Nathan Wilson (nathan)
Summary: Chrysomphalina aurantiaca?

Given that’s they were growing in wood, Hygrocybe is unlikely. I was similarly confused by a collection from the Sierra Nevada, but later learned about Chrysomphalina and it made a lot more sense.