Childs 1957 Plant Communities 2 July Pitmegea River, Cape Sabine, Alaska. The following descriptions and species lists were provided by Dr. John Cantlon of Michigan State University who had considerable experience on the arctic slope in 1953 and who knew the plant species better than anyone I have met at Barrow. He had worked out a scheme of classification of the plant communities and was able to map the entire area within several miles of camp. This map is attached. I Barrow: (Symbol D5b on map) This plant type is found on sandstone outcrops where the soil is an Arctic Brown - Lithoool soil complex. 1. Dryas alaskensis and other dwarf shrubs and perennial herbs. Arenaria macrocarpa, Saifraza sachachotzia Silene acaule, Bupleurum americanum, Festuca brachyphylla, Salix phyllophylla Oxytropis migrescens, Potentilla uniflora plus mosses and crustose, foliose, and fruticose lichens. 2. Alluvial gravel and Sandbars: Artemisia app., Epilobium angustifolia, grasses. 3. Beaches: Elymus arenaria, Sagina intermedia.