The plant kingdom covers the entire earth, offering our senses great pleasure and the delights of summer.
Carl LinnaeusAll the species recognized by Botanists came forth from the Almighty Creator's hand, and the number of these is now and always will be exactly the same, while every day new and different florists' species arise from the true species so-called by Botanists, and when they have arisen they finally revert to the original forms. Accordingly to the former have been assigned by Nature fixed limits, beyond which they cannot go: while the latter display without end the infinite sport of Nature.
Carl LinnaeusThe names of the plants ought to be stable [certa], consequently they should be given to stable genera.
Carl Linnaeus