Abstract | The first and principal purpose of this article is a portrayal of the Mesilla Valley flora, and a portrayal of it as it is; not as I myself, anyone else, or any theory would have it, but as I have found it to exist and have sketched or noted it to the best of my ability. After having done this by relating carefully observed facts, with no view whatever of verifying any hypothesis, I purpose to offer a few thoughts in explanation of the several, and somewhat sharply marked life zones of this valley. |