In his description of the Cinnamon of Ceylon, he supposes differences in the manner of veining the leaf, which are not found in the leaves themselves. He supposes, that the Cinnamon of Ceylon differs from that of Malabar by its berries growing in cups like acorns; which is apparently the same in both, as may be seen in its figure in the _Hortus Malabaricus_. The other differences taken notice of by the botanic writers are as follow: In the _Flora Zeylanica_, p. 545. and in the _Materia Medica_, 190. the Cinnamon of Ceylon is called _Laurus foliis trinerviis ovato-oblongis nervis unientibus_: which description is adhered to in the _Hortus Cliffordiensis_, p. 154. under the name _Laurus foliis oblongo-ovatis nitidis planis_. And Burman, in his _Flora Zeylanica_, 62. T. 27. calls it _Cinamomum foliis latis ovatis_. Whereas the Cassia of Sumatra is distinguished by these writers: that in _Flora Zeyl._ 146. and in _Materia Medica_, 191. is called _Laurus foliis trinerviis lanceolatis nervis supra basin unitis_: and Burman, _Zeylan._ 63. T. 28. calls it _Cinamomum perpetuo florens folio tenuiore acuto_. The distinction therefore, which these writers would make us believe there is between these plants, consists in the leaves of the one being oval, the other sharp-pointed; and that the nerves are limited at the bottom in the Cinnamon, but not so in the Cassia: for as to the _semper florens_, mentioned by Burman, that must undoubtedly be common to both. Now as to the different shape of the leaves, we know how often this happens by seminal varieties, and from the age of plants, as in the leaves of holly and ivy; and that even the shapes of leaves vary greatly on the very same plant, and sometimes on the same branch; as in the ash, and many other plants, the leaves of the young shoots are more oval than those on the old boughs, which are generally more pointed. But this variety is much more frequent in the plants of warm countries. In the sassafras, part of the leaves generally near the bottom of the plant are plain, whilst the other leaves are divided into three lobes or segments. I have observed great difference also in the leaves of almost every one of the American oaks. In the Virginian cedar, the berries of the same plant produce some plants with juniper leaves, and others with leaves like the savin; and some plants with both leaves growing on the same plant. I must observe that Burman has, in his figures of the two plants before mentioned, made them extremely different. In that of Ceylon he has made all the leaves oval; and, to make the difference greater, has drawn the rudiments of the berries; to which he has added the flower, or part of it, at the top of the style or rudiment of the fruit: and in that of Malabar he has drawn the flower growing in the umbel.