Benthic Algae — DAWSON 
399 
Fucus parksii Gardner 
Gardner, 1940 
Humbolt Bay; Eureka, Calif. 
Pelvetia fastigiata (J. Agardh) G. De Toni f. 
fastigiata 
Dawson, 1934; Scagel, 1957; Dawson, 1959c 
Horswell Channel, British Columbia; Coos 
Bay, Oreg., to Punta Baja, Baja Calif. 
Pelvetia fastigiata f. gracilis Setchell & Gardner 
Smith, 1944; Dawson, 1954 
Monterey Peninsula; Channel Islands, Calif.; 
northern Baja Calif. 
Pelvetiopsis arborescens Gardner 
Gardner, 1940 
Point Carmel, Calif. 
Pelvetiopsis limitata (Setchell) Gardner f. lim- 
itata 
Scagel, 1957 
Hope I., British Columbia, to Carmel, Calif. 
Pelvetiopsis limitata f. lata Gardner 
Smith, 1944 
Tomales Point to Monterey, Calif. 
Hesperophycus harveyanus (Decaisne) Setchell 
& Gardner 
Dawson, 1954, 1959c 
Santa Cruz, Calif., to Islas San Benito, Baja 
Calif. 
fam. SARGASSACEAE 
Cystophora brandegeei (Setchell & Gardner) 
Dawson 
Dawson, 1954, 1945 c 
La Jolla, Calif., to Isla Guadalupe, Baja Calif. 
Cystophora galapagensis (Piccone & Grunow in 
Piccone) comb. nov. 
Taylor, 1945 (as Blossevillea galapagensis ); 
Piccone, 1886: 40 (as Fucodium galapa- 
gense) 
Galapagos Arch. 
Cystoseira geminata C. Agardh 
Scagel, 1957 
Bering Sea to northern Wash. , 
Cystoseira neglecta Setchell & Gardner 
Dawson, 1954 
Santa Catalina I., Calif., to Desembarcadero 
de Miller, Baja Calif. 
Cystoseira osmundacea (Menzies) C. Agardh 
Doty, 1947; Dawson, 1954, 1959c; Dawson, 
Neushul & Wildman, I960. 
Seaside, Oreg., to Punta Abreojos, Baja Calif. 
Cystoseira setchellii Gardner 
Setchell & Gardner, 1925 
Redondo to San Diego, Calif. 
Halidrys dioica Gardner 
Dawson, 1954, 1959c; Dawson, Neushul & 
Wildman, I960 
Redondo, Calif., to Isla Asuncion, Baja Calif. 
Sargassum acinacif olium Setchell & Gardner 
Dawson, 1954 
Puerto Libertad to Guaymas, Sonora 
Sargassum agardhianum Far low 
Dawson, 1954, 1959c, 1960a; Dawson, Neu- 
shul & Wildman, I960 
Point Dume, Calif., to Punta Eugenio, Baja 
Calif. 
Sargassum, albemarlense Taylor 
Taylor, 1945; Dawson, 1957 
Galapagos Arch. 
Sargassum brandegeei Setchell & Gardner 
Taylor, 1945; Dawson, 1954, 1959 
Puerto Libertad to Isla San Pedro Nolasco, 
Gulf of Calif.; Galapagos Arch. 
Sargassum camouii Dawson 
Dawson, 1954 
Bahia Viscaino, Baja Calif.; east central Gulf 
of Calif. 
Sargassum ecuadoreanum Taylor 
Taylor, 1945 
Vicinity of Guayas, Ecuador 
