GENERA PLANTARUM, ad Exemplaria imprimis in Herbariis Kewensibus servata definita. By GEORGE BENTHAM, F.R.S., President of the Linnean Society, and Dr. J. D. HOOKER, F.R.S., Assistant-Director of the Royal Gardens, Kew. Vol. I. Part I. pp. 454. Royal 8vo, 21_s_. Part II., 14_s_. This important work comprehends an entire revision and reconstruction of the Genera of Plants. Unlike the famous Genera Plantarum of Endlicher, which is now out of print, it is founded on a personal study of every genus by one or both authors. The First Part contains 56 Natural Orders and 1287 Genera. The Second, now printing, will contain as many more. The whole will be completed in Four or Five Parts. -------------- FLORA OF THE ANTARCTIC ISLANDS; being Part I. of the Botany of the Antarctic Voyage of H.M. Discovery Ships ‘Erebus’ and ‘Terror,’ in the years 1839-1843. By Dr. J. D. HOOKER, F.R.S. Royal 4to. 2 vols., 574 pp., 200 Plates, £10. 15_s_. coloured. Published under the authority of the Lords Commissioners of the Admiralty. The ‘Flora Antarctica’ illustrates the Botany of the southern districts of South America and the various Antarctic Islands, as the Falklands, Kerguelen’s Land, Lord Auckland and Campbell’s Island, and 1370 species are enumerated and described. The plates, which are executed by Mr. Fitch, and beautifully coloured, illustrate 370 species, including a vast number of exquisite forms of Mosses and Seaweeds. -------------- FLORA OF NEW ZEALAND; being Part II. of the Botany of the Antarctic Voyage of H.M. Discovery Ships ‘Erebus’ and ‘Terror,’ in the years 1839-1843. By Dr. J. D. HOOKER, F.R.S. Royal 4to, 2 vols., 733 pp., 130 Plates. £16. 16_s_. coloured. Published under the authority of the Lords Commissioners of the Admiralty. The ‘Flora of New Zealand’ contains detailed descriptions of all the plants, flowering and flowerless, of that group of Islands, collected by the Author during Sir James Ross’ Antarctic Expedition; including also the collections of Cook’s three voyages, Vancouver’s voyages, etc., and most of them previously unpublished. The species described amount to 1767; and of the Plates, which illustrate 313 Species, many are devoted to the Mosses, Ferns, and Algæ, in which these Islands abound. -------------- FLORA OF TASMANIA; being Part III. of the Botany of the Antarctic Voyage of H.M. Discovery Ships ‘Erebus’ and ‘Terror,’ in the years 1839-1843. By Dr. J. D. HOOKER, F.R.S. Royal 4to, 2 vols., 972 pp., 200 Plates, £17. 10_s_., coloured. Published under the authority of the Lords Commissioners of the Admiralty. The ‘Flora of Tasmania’ describes all the Plants, flowering and flowerless, of that Island, consisting of 2203 Species, collected by the Author and others. The Plates, of which there are 200, illustrate 412 Species.