pine. Many plants of the subtropical region extend to the temper ate and even to the Alpine district, this being especially true of low growing plants like Oalis, Stellaria, Trifolium and several of the Malvae. The temperate zone is character- ized nevertheless by many genera & families that are not present or are hardly noticeable in the more tropical regions. The genus Salvia & Order Lythraceae have an especi- ally large distribution. Of the latter, Cephela is the most element, growing in great abund- ance under all conditions of soil & moisture. There are many representatives from the Gerania- ceae, Boraginese, Scrophularinese, Verbeneceae, Acencharicee & Amaranthaceae which take the place in a great measure of the Rubiaceae, Aclepiadae, Solanums, Euphorbiae and Cornel- inae in the tropics. Great & rapid changes are experienced in the flora as the slopes are as- cended above 7000°, and there are still marked zones for the distribution of the plants till the limit of vegetation is reached. Between 9000° and 10,000°, species of Sieybrimium, Lepidium, Geum Lava, Epilobium, Aerothera, Krypitzkie, Mimulus, Castilleia, Verbena, Salvia, Plantago and Chenopodium are the most characteristic forms of the herbaceous flora. Prominent among the Compositae are Shiva, Alkilea, Dahlia & Tagetes and besides Eupatorium & Baccharis, the shrubby flora is represented by Rubus, Symphoricarpus & Buddleia. Prominent among the grasses are Bromus, Festuca, Agrostis and Muhlenbergia and the ferns are represented by