What is most commonly recognized in Colombia as guaco, or Vejuco del guaco, would appear to be Mikania Guaco (Humboldt and Bonpland, Pl.
1 They are particularly important in that they counteracted the popular and interestingly written books of Max Muller: for instance, Muller, like Renan and Wilhelm von Humboldt, regarded language as an innate faculty and Whitney considered it the product of experience and outward circumstance.
Humboldt, for example, defined his view of the scope of plant geography as follows:
Alexander von Humboldt (1769-1859) was the first modern geographer to become a great traveller, and thus to acquire an extensive.
The theory of geograph y was advanced by Humboldt mainly by his insistence on the great principle of the unity of nature.