1959 Gustman 205a Oct. Talk with Prof. H.L. Mason of U.C. Botany dept Has the Paso Robles formation been geologically dated? [and is it late Pleistocene?] U.S.D.A. people have dug into pear deposits at Holt, near Stockton, and at 35 ft. depth ran into salt water pear. Sand dunes on w. side of central valley have plants with close coastal strand affinities: Gilia capitata are these remnants of saltwater inundation. also Cordilanthus mollis in alkali marshes at Los Banos & about the Bay area what about Onya crossing the valley near (5.) of Newman? check Caulter Prof. Green on Sagittaria Aristolocia (for rattle snake bits) all have w. juglans (N. cal. type only? ) teas affinities red sand Bunch grass near Dvin Eriogonum glauculatum in road cuts about the hay area were planted by U.S. forest Service to hold the bare soil.