Observation 1081: Lepiota sequoiarum Murrill

When: 2006-11-25

Collection location: Los Trancos Preserve, Palo Alto, California, USA [Click for map]

Who: Douglas Smith (douglas)

No specimen available

Some notes were sent into me by Dr. Else C. Vellinga:
Your picture of Lepiota seminuda in fact is a species in the L. sequioarum complex. Cystolepiota seminuda is small (caps up to half an inch, more or less), with a rounded cap and a fine granulose covering, which in young fruitbodies hangs down the cap margin in triangular teeth. The stipe is thin, also finely powdery, with a wine-red tinge to it under the cover. A ring is not really present, there may be traces left on the stipe where the cap broke off from the stipe Your specimen here is bigger, with a flatter cap, radially fibrillose silky, with a prominent ring on the stipe (and lots of microscopic characters which also distinguish it from C. seminuda). Unfortunately, what has been called L. sequoiarum here is in fact a complex of 5 or 6 different species. I’m in the midst of figuring it all out.
So, thanks to Else, and what do you know?

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Created: 2006-11-27 17:13:09 NZDT (+1300)
Last modified: 2007-11-16 18:29:05 NZDT (+1300)
Viewed: 42 times, last viewed: 2018-02-28 22:32:36 NZDT (+1300)
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