Abstract

The bryophytes of El Malpais National Monument in west-central New Mexico were collected and inventoried. The study area is dominated by lava flows and tubes some of which form ice caves and fascinating moss gardens. These gardens contain disjunct bryophyte populations enabled by ice and cool year-round temperatures at cave entrances. A total of 110 bryophyte species were found including 95 moss species in 23 families, and 15 liverwort species in 10 families. Six of these bryophyte species are new state records for New Mexico. No hornworts were found. We review past work on bryophytes in this unique habitat, and present a short biography of Alton A. Lindsey. This is a fragile habitat and global warming may put it at risk.

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