![North American Species of Cactus](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
![North American Species of Cactus](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
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North American Species of Cactus
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- 2,99 €
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- 2,99 €
Publisher Description
Another classic converted by eBooksLib.com.In the fall of 1890 Dr. George Vasey, then Botanist of the Department of Agriculture, arranged with me to prepare a revision of North American Cactaceae. Owing to the peculiar difficulty of preserving material the family was poorly represented, even in our leading herbaria. To secure a large amount of additional material in the way of specimens and field notes the Department authorized me to visit the region of the Mexican boundary during the summer of 1891