Patelca 1943 June 11. 2 mi' S'E Beegum, 1650 ft., Tehama Co., Calif. is replaced by fairly extensive areas of Adenostoma with scattered digger pines. June 12 Hunted today north of Camp, in part over the flat between the road and the small stream beside which our camp is located. I continued, then, along one side of the stream northward to its headwaters and to the ridge which separates the drainage of our collecting locality from that of Cottonwood Creek to the north. Two main habitats were sampled: First, the blue oak-digger pine-manzanita in the vicinity of camp. Secondly, the Adenostoma chaparral along the slopes and higher ridges. The chaparral generally is broken up into patches of several square hundred square feet to several acres in extent. The individual shrubs are spaced with 1-3 feet of clear space between them. A number of dead shrubs have been noted, and some are made up of fresh growth from the basal portions of otherwise dead shrubs. This may indicate a burn perhaps two or three years ago. Over flat areas and along draws in the vicinity of the chaparral, there again occur blue oak-digger pine- and manzanita and the marginal mixtures