At the present moment there must be at least 200,000 plants named and described by botanists. So that the number of ecstatic moments enjoyed by humanity has been undoubtedly increased. The Egyptians, the Babylonians, and the Arabs named a great many plants, but for the most part those names are quite lost. Most of the knowledge of the Egyptians and Babylonians remained a close secret confined to their priestly colleges or universities, and has entirely perished. For centuries those fragments of the knowledge of Greece and Egypt which were preserved seem to have been translated and taught in Latin. Long after the Roman Empire had passed away, all knowledge, including that of medicine, of botany, and of law, was imparted in Latin, which indeed was supposed to be learnt by every educated person almost until the present century. Even now descriptions of new plants have to be given in Latin, and the name must have a classical appearance. Of course, nowadays, it would be much more convenient and much more generally useful if every person learnt English, German, French, and Japanese, but in this case of naming plants, the Holy Roman Empire still exercises its sway over the whole world. Very often the names given to plants are of the most extraordinary character. The Latin is curious and the Greek remarkable, yet sometimes they are both pleasant to the ear and have a pretty and poetical meaning. _Poggeophyton_, on the other hand, for example, means the plant discovered by Dr. Pogge, a German botanical explorer. _Wormskioldia_, _Zahlbrucknera_, _Krascheninikowia_, _Acanthosicyos_, _Chickrassia_, _Orychophragmus_, _Warczewiczia_, _Lychnophoriopsis_, _Krombholtzia_, _Pseudorhachicallis_, _Sczegleewia_, _Zschokkia_, are all names that sound harsh and look odd to us. Yet most of them are just called after those who discovered them, or their friends. In many of the smaller microscopic plants the names are really much longer than the plants themselves. Thus _Pseudocerataulus Kinkeri_ is a diatom which cannot possibly be seen without the use of a microscope. Names are and were given in the most extraordinary way. Not merely great botanists, but Themistocles, Aristides, Aristobulus, Virgil, and even Gyas and Clianthes, have plants named after them. Yet that is not inexcusable, if people had not sufficient inventive power to do better. There was a naturalist who quarrelled with the great French scientist Buffon. Therefore he baptized as _Buffonia_ a group of ugly, unimportant little plants which had an unpleasant smell. In other cases people have named plants after their sweethearts or friends. A British plant called Bartzia has a rather melancholy, desolate appearance. It was named when the author had just received the news of the death of his friend Dr. Bartsch.