Observation 32411: Rhizopogon Fr. & Nordholm
When: 2010-01-20
No herbarium specimen


[admin – Sat Aug 14 02:02:18 +0000 2010]: Changed location name from ‘Leo J. Ryan Memorial Park, Foster City, CA’ to ‘Leo J. Ryan Memorial Park, Foster City, California, USA

Proposed Names

84% (1)
Recognized by sight: Rhizomorphs on the peridium plus the loculate interior prove Rhizopogon. But which species? Need to know nearby trees and shrubs, plus need a shot of the interior to prove species. R. occidentalis usually found with 2-needle pine in sandy soils; R. ochraceorubens should have red-tints to the peridium plus the smokey-grey interior. The Rhizopogonaceae are notorious for similar sized spores, so accurate identification of possible host plants becomes nearly essential for positive identification, unless you have an extensive herbarium collection of Rhizopogons available. The late Dr. Alexander H. Smith, said to have been the foremost expert in Rhizopogons, once quipped that yes, he had identified more Rhizopogons than anyone else. But continued he also had the largest collection of unidentified Rhizopogons of anyone.

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Created: 2010-01-23 07:55:59 CET (+0100)
Last modified: 2011-03-29 20:58:54 CEST (+0200)
Viewed: 61 times, last viewed: 2016-10-23 09:10:18 CEST (+0200)
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