By James D. Mauseth
This booklet provides the tales of 3 avid box biologists who over the process 15 years often traveled jointly looking for cacti in Bolivia, Peru, and Argentina. The conversational type of this travelogue permits us to proportion within the authors' pleasure as they come upon vegetation that experience infrequently, if ever, been written approximately. approximately 195 notable colour images accompany the shiny descriptions of bizarre cacti turning out to be along non-succulent vegetation, at altitudes of 8000 ft or more-and even in rainforests! A Cactus Odyssey will curiosity gardeners, tourists, and conservationists from all over the world who desire to examine extra approximately those impossible to resist crops, and it's the desire of the authors that this booklet will motivate others to adopt their very own cactus odyssey.
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Additional resources for A Cactus Odyssey: Journeys in the Wilds of Bolivia, Peru, and Argentina
Many cacti of humid coastal regions, such as those of Acanthocereus, Leptocereus, and Pereskia, have little succulence. Cacti in habitats that routinely have only one period of rain a year, on the other hand, must contain large amounts of succulent tissue, not enough to last merely a year, but enough in case there are two bad years in a row. Armatocerei, copi- Cacti: Introduction, Biology, and History 15 apoas, and soehrensias survive years without rain, relying on their abundance of stored water.
Tortuga, and G. tudae are all listed by David Hunt in the cites Cactaceae Checklist as being variations of one species, G. marsoneri. It is not particularly important if each of these is considered a species or a variety; what is important is that we realize they are a closely related group that share a common ancestor. Closely related species are grouped together in a genus (the plural of genus is genera). As problematical as the definition of species is, the definition of a genus is more so. Each genus should contain only those species that have 26 Cacti: Introduction, Biology, and History all descended from the same ancestral plants.
5 cm) per year, a particular area of habitat that was carried into a desert zone would probably stay in the zone for thirty or forty million years before emerging into the moister equatorial zone on the other side. Unfortunately, we lack so much knowledge about when and where cacti originated and diversified, and about the topography and climate of South America that we cannot fill in the many holes in the sketchy outline we offer 24 Cacti: Introduction, Biology, and History in this chapter. Without the Andes present, was there an Amazon River, or did multiple rivers drain the continent in various directions?
A Cactus Odyssey: Journeys in the Wilds of Bolivia, Peru, and Argentina by James D. Mauseth