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Show ANNOTATIONS AND ADDITIONS. 323 see'n two Malvacere, SidaPhyllanthos (Cavan), and Sida pichinchensis, ascend, on the mountain of Antisana and the Volcano Rucu-Pichincha, to the great elevation of 12,600 and 14,136 French (13,430 and 15,066 English) feet. (See our Plantes equin., t. ii. p. 113, pl. 116.) Only the Saxifraga boussingaulti (Brogn.) reaches, on the slope of the Chimborazo, an altitude six or seven hundred feet higher. (18) p. 240.- " The Mimosa form." The finely feathered or pinnated leaves of Mimosas, Acacias, Schrankias, and species of Desmanthus, are most truly forms of tropical vegetation. Yet there are some representations of this form beyond the tropics j in the Northern Hemisphere in the Old Continent I can indeed cite but one, and that only in Asia, and a lowgrowing shrub, the Acacia Stephaniana, according to Kunth's more recent investigations a species of the genus Prosopis. It is a social plant, covering the arid plains of the province of Shirwan, on the Kur (Cyrus), as far as the ancient Araxes. Oliver also found it near Bagdad. It is the Acacia foliis bipinnatis mentioned by Buxbaum, and extends as far north as 42° of latitude. (Tableau des Provinces situees sur la Cote occidentale de la Mer Caspienne, entre les fl.euves Terek et Kour, 1798, pp. 58 and 120.) In Africa the Acacia gnmmifera of Willdenow advances as far as Mogador, or to 32° north latitude. On the New Continent, the banks of the Mississippi and the. Tennessee, as well as the savannahs of Illinois, are adorned with Acacia glandulosa (Michaux), and A. brachyloba (Willd.). Michaux found the Schrankia uncinata extend northwards from Florida into Virginia, or to 37° N. latitude. Gleditschia tricanthos is found, according to Barton, on the east side of the Alleghany Mountains, as far north as the 38th parallel, and on the west side even as far as the 41st parallel. Gleditschia monosperma ceases two degrees farther to the south. These are the limits of the Mimosa form in the Northern Hemisphere. In the Southern Hemisphere, we find beyond the tropic of Capricorn simple leaved Acacias as far as Van Diemen Island; and even the Acacia cavenia, described by Claude Gay, grows in Chili between the 30th and 37th degrees of south latitude. (Molina, Storia Naturale del Chili, 1782, p. 17 4.) Chili |