The magnificent and enduring spine of the United States, the Rocky Mountains are host to thousands of flora and fauna species, as well as rugged topography and

A substantial glossary and comprehensive checklist are included. This useful guide to genera found abundantly in the region will be welcomed not only by the pro

“A love poem to the living things that inhabit the mountains and rivers of Washington, coastal Oregon, and southwestern British Columbia.” —Saul Weisberg,

North Carolina is home to 66 genera and 195 species of liverworts--small, mosslike plants occupying moist microhabitats that form an inconspicuous part of the v