The North American Species of Cactus, Anhalonium, and Lophophora
The North American Species of Cactus, Anhalonium, and Lophophora
Book Excerpt
ew of these facts, I have thought it
advisable to present a preliminary revision of the order, which
shall contain the results of the study of material confessedly
insufficient. With such knowledge as we possess brought
together, it is hoped that the study of this very interesting and
much neglected group will be stimulated, and that more critical
exploration of our southwestern territory and adjacent Mexico
will make a more satisfactory presentation possible. It would be
useless to notice the vast number of reputed species that are not
represented by actual specimens in our possession.
In the proposed preliminary account of the family, of which the present paper is the first part, only those genera are considered which form a part of the flora of the United States, and those species which I have been able to examine and to identify with reasonable certainty. All forms credited to the United States have been studied, and the account of these species may be considered fairly complete, but the far more nu
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