have, in a particular Manner, mentioned the Crenations of the Leaves, because no such Circumstance is specified, either by _Dodonæus_, in his Description of the _Chamelæagnus_, or by _Trigautius_ and _Rhodius_, in their Accounts of the Leaves of _Tea_, which, according to _Olearius_, are about an Inch long, half an Inch broad, and, when dried, assume a blackish Colour, all which Circumstances hold true of the _Chamelæagnus_. _Tulpius_ informs us, that the Leaves of _Tea_ are of a dark green Colour, oblong, acuminated, and crenated about the Edges; and _Bontius_ describes them with small Incisions about the Edges, like those of the _Daisy_: Besides, if the Reader compares what _Dodonæus_ advances, with respect to the native Soil of the _Chamelæagnus_, with the Description I have given of it, he will find it probable that it is also produced in _Tartary_; so that we have just Reason to conclude, that the _Cha_ of the _Tartars_, and _Thee_ of the _Chinese_, are nothing else but the _European Chamelæagnus_. Another Analogy is also to be observed between the Leaves of _Tea_, and those of the _Chamelæagnus_, which is, that only the larger Leaves of each of them are crenated. If it should be objected, that _Dodonæus_ inclined to insinuate, that the Leaves of the _Chamelæagnus_ are like those of the _Myrtle_; and that the Leaves of the true _Myrtle_ are not crenated: I answer, that I am sufficiently apprised of this; but, at the same time, would have the Objector remember, that _Caspar Bauhine_ finds some Things wanting in the Figure of the _Chamelæagnus_, exhibited in the _Latin_ Edition of _Dodonæus_, and for that Reason, prefers the Figure in the _Dutch_ Edition to it. His Description is also very defective, since he neither mentions the Crenation of the Leaves, nor the Sporting of Nature, which are very material Points; since the Leaves are not all crenated in the same Manner, and sometimes not crenated at all, especially at the Points, till they have arrived at a certain Age and Bulk. Similar Sportings of Nature are frequently to be observed; since, in one and the same Mallow, it often happens, that one Leaf is not like another. There is also a surprizing Variety, both in the Form and Number of the Leaves of the _Eupatorium Canadense Foliis Enulæ Jacobi Cornuti_ of the _Lysimachia Lutea Major_ and _Minor_, and of the _Pseudolysimachia_. It is also sufficiently known, that the _Peruvian_ Flower in _Europe_, varies every Day considerably from the same Flower in _Peru_; but we are not, for this Reason, to deny that they both belong to the same Species. Thus, though in _Europe_, there is a Kind of Sporting of Nature in the Leaves of the _Chamelæagnus_; yet all these Leaves, when most accurately compared with the _Tartarian_ or _Chinese Tea_, are only found to differ inconsiderably from them in Size, Colour, and Crenations: So that we may conclude, that the Shrub _Chamelæagnus_ belongs to the same