priority of introduction; the enumeration of these, therefore, in succession would be but a list of names, and in no way illustrate the present subject. It will be nothing relevant to our purpose, to know how many Ericas were enumerated by Petiver, Plukenet, Hermann, Oldenland, Ray, &c. &c.; as, before Linnæus had, by his mode of classification, determined the precise limits of the Genus, the confusion that then pervaded all the elder Botanists is such, that any comment from them, would rather perplex, than elucidate. Wherefore, beginning with the Systema Naturæ of Linnæus, Vol. II. of 1767, including the European species, he there enumerates but 42; and Dahlgren, in 1770, edited a dissertation, under his eye, on the genus, containing a catalogue of 58 names from Bergius, the Mantissa, &c. Thunberg returning from Africa in 1772, added 13 to the number; all of which were inserted in the Supplementum Plantarum of 1781. From this last work, and some other sources, Murray has, in his Syst. Veg. of 1784, made up a Catalogue of 74 names. The last to be noticed, till the appearance of the Hort. Kew. is, the Dissertatio de Erica; published under the inspection of Thunberg, in 1785, with a list and descriptions of 91 species. In the year 1789, a Catalogue of the plants cultivated in the Royal Gardens at Kew, was published by Mr. Aiton; where, 41 Heaths are to be found in the 2d Vol.; and four in the addenda at the end of the 3d, making in all 45. Martyn in his Edition of Miller’s Dictionary, fasciculus of 1795, article Erica, enumerates but 84. Willdenow, collating from all the foregoing, and assisted by his friend Wendland, of the Royal Gardens at Herenhausen, Hanover; has mounted the list to 137, in his Species Plantarum, now publishing in continuation at Berlin. This, however, as will appear by the catalogue, falls far short of the number, we have now, in actual cultivation in Britain. From the great number of beautiful specimens lately received by G. Hibbert, Esq. many of which were accompanied by seeds, now living plants, contributing to the present richness of the extensive and superb Collection of that Gentleman at Clapham, and brought from the Cape of Good Hope by Mr. Niven, who was employed for the only purpose, of amassing the vegetable treasures of that country, to enrich the Clapham gardens, and herbarium; as well as, from the numberless importations, by different hands, of seeds, since we have been in possession of that territory; a fair conjecture may be made, that the Genus is not bounded, by double the number of species with which we are at present acquainted. Few, if any, of the species but have been increased by cuttings; which has occasioned the total disuse of