Patelka 1948 Aug. 28 Prisoner's Harbor, Santa Cruz I. are present on Hodner's sites, covering certain slopes up to the main ridge. With oaks occur Prunus ilicifolia, here a good-sized tree, and Photinia. (if any is present, The understory vegetation consists of grasses or low shrubs, or both. Often there are scattered patches of shrubby herbs, usually some composite. A Solanum is fairly frequent, Urtica occurs in moist areas, and where the ground is not too disturbed, there is Symphoricarpos; but in general, understory vegetation is poor, in part possibly because of the low rain- fall last season, but probably chiefly because of the surface disturbance trampling of both sheep and hogs, and the rooting by the latter when they are hunting for food. (Pearson reports remains of acorns in the droppings of hogs). The driest slopes, facing S or SE along the main canyon above Prisoner's Harbor, are partly barren or eroded, with large rock slides locally, and partly vegetated with Opuntia; which is abundant, shrubs (Cercocarpus abnifolia, Adenostoma), when present, various sorts, and scattered oaks. Herb cover is patchy and sparse. On the canyon flat and along the slope bases, herb cover is locally more abundant. An umbellifer, appa- rently dill (Foeniculum), is common and occurs in masses suggesting Coriaria in the Berkeley area.