Notes: A fairly normal species to find among the grass of irrigated lawns about now. I’ve been finding plenty of these for the past few weeks, small brown, with a very dark spore print (almost but not quite black…), and a hygrophanous cap.
But in class this week we were looking a number of distinctive microscopic details, and these have the epithelial pileipelis (I think I got that right…). This is where the surface of the cap is made of large globous, thin walled cells, without any fiberous hyphae suporting them. This can be seen in the first microscopic photo. This was taken at 400x, mounted in KOH, and the divisions are 2.5 microns. The cap was covered with spores, in the section I grabbed, maybe from cutting through the gills, or probably from just the fact that the cap was covered in spores. Next time, if there is a next time, I’ll try for a cap without lots of spores. Anyway, you can see lots of big fat round cells that make up the cap surface.
The second microscopic photo is still on the cap surface, but this time focused on the spores. This was taken at 1000x in oil immersion, and the divisions are each 1 micron.
Panaeolus foenisecii (Pers.) J. Schröt. on MyCoPortal
Panaeolus foenisecii on MycoBank
Alternative Name: Panaeolina foenisecii (Pers.) Maire
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Created: 2007-10-02 08:57:31 CEST (+0200)
Last modified: 2007-10-03 00:43:43 CEST (+0200)
Viewed: 81 times, last viewed: 2016-09-27 14:06:43 CEST (+0200)