These additions brought the number of North American species to 34.
It is also a native American species, a distinct contribution to the world's religions.
Although the exact number of American species is not known, biologists say that more than 100,000 have been identified.
Then, about 1,800 years later, the North American species showed up.
The name is sometimes applied to similar American species.
There are about seventeen American species, usually growing in the mud under still, shallow water.
The tree has a round growth pattern, as opposed to the vase shape of the American species.
Some American species have also been introduced into Europe and other parts of the world.
Today, some 40 percent of American species are either endangered or candidates for the list.
The series is mostly about a new American species of vampires.