Subject: Lichen "rings"

From: Nancy Harrison <[email-masked]>
Date: Tue, 31 Oct 95 08:30:26 -0500

I need references on relation between lichen growth on trunks of Red Fir
and Hemlock in the Sierra-Cascade ranges and mean snowfall levels.
Anyone done any work on this? Field experience? Please e-mail info to
[email-masked] or [email-masked], or reply here. Thanks!
-Nan in Calif