There is an article on cave restoration in the November issue of Wildflower magazine. (and a larger article on the benefits of peyote): https://issuu.com/wildflowercenter/docs/2019_v36_no2_issuu
-- Nico Hauwert, Ph.D. 2403 Bahama Road Austin, Texas 78733 01-512-695-4597 nmhauw...@gmail.com
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