 Trees
and Shrubs of Alabama and the Southeast. Lisa Samuelson et al. A truly
great site on the trees and shrubs of the southeastern United States from
Auburn University. Each of the species is covered in a separate page with
a description of the species, its biology, and a series of one or more
pictures.
Silvics
of North America. U.S. Forest Service. Silvics of North America is
a Department of Agriculture Handbook now available through the internet.
The handbook comes in two volumes, one covering the conifers and the other
the hardwoods. Not all tree species are covered in the handbook, although
the majority are. Each species has its own page and the information covered
include the species native distribution, some identification characters,
habitat, physical requirements, life history, abundance, pests, uses,
and an extensive bibliography. A truly incredible piece of work and anyone
interested in trees should take a look.
Atlas
of Relations between Climatic Parameters and Distributions of Important
Trees and Shrubs in North America. Robert W. Thompson et al., U.S.
Geological Survey. A magnificent resource for anyone interested in the
distribution of trees in North America. Each tree species (and most are
covered) consists of a single Adobe Acrobat (pdf) document containing
a distribution map for the species and a series of graphs depicting the
physical requirements of the species. Mexican species are covered in addition
to U.s. and Canadian species. A tremendous resource.
Native Plants
of Arizona. T. Ayers, T. Kolb, and E. Taylor. This general site has
a nice selection of gymnosperms with descriptions of the families and
genera as well as photographs and information on representative species.
Trees
of California. University of California at Fullerton. This site has
extensive information on many of the trees of California including several
species of conifers.
Christmas
Trees. This site has information and photographs of the different
species of conifers used as Christmas trees. The information includes
their biology, propagation, and other uses.
The
Ancient Bristlecone Pine. Leonard Miller. This site is devoted to
facts about the Bristlecone Pine, the species with the oldest known living
individuals. You will find a wealth of information and gallery of photographs.
A very well done and attractive site.
Coastal
Redwoods. A series of essays on the coastal redwoods given in 1965
by the University of California School of Forestry. Very informative.
Tree
of Life - Ephedra. Michael Donoghue. Photographs of
the Ephedra (Mormon Tea), a North American representative of the
gymnosperm group Gnetales. |
