Hooker recognises the existence of "altered states" of continental species in island floras. The botanists' difficulty in determining a new species is no grounds for dismissing the important question of altered forms. Will look for Ascension plants for Ehrenberg. French Galapagos collections confirm Hooker's view that plants arrived from north. Cannot agree with Forbes on North Atlantic flora. Botanical definition of "highness" and "lowness" usually means complexity and simplicity. Some plants, such as aquatic ones, are cleistogamous. Cannot see why they should not be.
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