Pitelka 1943 Plants, page 2 160 LILIAKEAE Brodiaea elegans Hoover (B. coronaria (Salisb.) Jepson of Jepson's manual). Harvest Brodiaea.--In open grassy areas about Garry oak-Ceanothus-manzanita at Hayfork. Brodiaea multiflora Benth.--In openings of fir-pine-forest at lower elevations (3200-3300 ft.) of Hayfork Bally. Calochortus maweanus Leicht. ?--A dwarf Mariposa lily, 5800 ft., Hayfork Bally. IRIDACEAE Iris macrosiphon Torr. Ground Iris.--4500 ft., Hayfork Bally. ORCHIDACEAE Corallo rhiza striata Lindl. Coral-root.--4500 ft., Hayfork Bally. SALICACEAE Salix lasiandra Benth. Yellow Willow. Large willow along stream near Hayfork camp. Salix laevigata Bebb. ? Red Willow.--Common willow about Hayfork camp. Salix melanopsis Nutt. Longleaf Willow.--Common willow on flat south of Hyampom camp. Salix lasiolepis Benth. ? Arroyo Willow.--Scattered small shrubs along stream near Beegum camp. Populus trichocarpa T. & G. Black Cottonwood.--Along stream near Hayfork camp. Common on Hyampom flat. BETULACEAE Alnus rhombifolia Nutt. Red Alder. Along Big Creek, Hayfork FAGACEAE Quercus lobata Nee. Valley Oak.--Predominant tree along Dry Creek west of Red Bluff. Quercus garryana Dougl. Oregon Oak.--Common at Hayfork and Hyampom. Quercus douglasii H. & A. Blue Oak.--Predominant in wood- land areas at Beegum. Quercus dumosa Nutt. Scrub Oak.--On steep SW-facing slope above Beegum camp. Quercus chrysolepis Liebm. Canen Oak, Golden Oak.--Hayfork Bally, 3200-ft. and upward; also N-facing slope along Hayfork Creek at 2400 ft. Hyampom. Quercus wislizenii A. DC. Interior Live Oak.--On NE-facing slope near Beegum camp; shrub 6-8 ft. high on east slope of Duncan Gulch, near Hayfork.