http://hdl.handle.net/10150/297193 Sun, 12 Apr 2026 13:05:12 GMT 2026-04-12T13:05:12Z http://hdl.handle.net/10150/550787 How the Distribution of Manzanita in Arizona is Governed by Winter Rain, Acid Soil, Topographic Elevation and Freezing Weather Thu, 01 Jan 1981 00:00:00 GMT http://hdl.handle.net/10150/550787 1981-01-01T00:00:00Z http://hdl.handle.net/10150/550801 Cousins to the South: Amphitropical Disjunctions in Southwestern Grasses Allred, Kelly W. Thu, 01 Jan 1981 00:00:00 GMT http://hdl.handle.net/10150/550801 1981-01-01T00:00:00Z http://hdl.handle.net/10150/550786 A Climatologic Summary for Punta Cirio, Sonora, Mexico Humphrey, Robert R. Climatological data have been collected at several stations in the general vicinity of Puerto Libertád, Sonora, Mexico at various intervals from 1925 to the present. The general area is a focal point for both research and teaching activities. For this reason and because the Sonoran Desert coastal climate is distinct from that of other portions of this desert, the data from these stations are here summarized and discussed. They are presented here primarily to make them available to future students of the area. Thu, 01 Jan 1981 00:00:00 GMT http://hdl.handle.net/10150/550786 1981-01-01T00:00:00Z http://hdl.handle.net/10150/550800 Wetland Trees of Arizona for Possible Oasis Use in Arid Regions Rodiek, Jon Thu, 01 Jan 1981 00:00:00 GMT http://hdl.handle.net/10150/550800 1981-01-01T00:00:00Z