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Synonyms:
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Ulva angusta Setchell et Gardner, Enteromorpha angusta ( Setchell et Gardner ) Doty, Ulva scagelii Chihara
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Illustrations:
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Abbott and Hollenberg 1976, p. 80, fig. 35 ( habit ); Chihara 1969 a, p. 93, fig. 3: A, C ( surface views, vegetative plant ), B, D & ndash; F ( x-sections, different portions of vegetative plant ), G, H ( surface view and x-section, male plant ), I, J ( male gametes ), K, L ( female gametes ), M ( syngamy, N & ndash; U ( development of sporophyte from zygote ), p. 95, fig. 4: A, B ( surface view and x-section, sporophyte ), C & ndash; F ( zoospores ), G & ndash; X ( development of gametophyte from zoospore ), p. 96, fig. 5: A, B ( further development of gametophyte from zoospore ), C, D ( further development of sporophyte from zygote ), p. 99, fig. 8: A & ndash; E ( photos: habit, plants of various ages and seasons, including holotype of U. scagelii ); Doty 1947, pl. 1, figs. 1 & ndash; 4, 6 ( x-sections, various parts of plant ), fig. 5 ( surface view ), pl. 2, figs. 6 & ndash; 10 ( x-sections, various parts of plant ); Setchell and Gardner 1920 b, pl. 22 ( photo: habit, type collection of U. angusta ), pl. 26, fig. 1 ( photomicrograph: surface view ); Tanner 1986, p. 514, figs. 1 & ndash; 8 ( habit, types and other representative specimens ), p. 515, figs. 9 & ndash; 18 ( photos: development of plants in culture ), p. 516, fig. 19 ( photos: development of plants in culture )
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Pacific Coast Distribution:
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Alaska ( Alaska Peninsula and Khantaak I ., Yakutat Bay: Tanner 1986, p. 517 ); British Columbia ( Vancouver: Chihara 1969 a, p. 90; Departure Bay to Victoria, Vancouver I.: Tanner 1986, p. 517 ); Whidbey I ., Wash. ( Tanner 1986, p. 517 ); Oregon ( Short Sand Beach, Tillamook Co.: Tanner 1986, p. 517; South Bay, Cape Arago, Coos Co. to Chetco Cove, Curry Co.: Doty 1947, p. 11 ); Humboldt Co ., Calif. ( Smith 1944, p. 45 ); Chadbourne Gulch near Westport, Mendocino Co. to Duxbury Reef, Marin Co ., Calif. ( Kjeldsen 1995, p. 12 ), including Bodega Head, Sonoma Co ., Calif. ( Johansen 1966 a, p. 87 ); San Francisco, Calif. ( Setchell and Gardner 1920 b, p. 264 ); Moss Beach, San Mateo Co ., Calif. ( Setchell and Gardner 1920 a, p. 283 ); Monterey Peninsula, Calif. ( Pacific Grove: Doty 6065 in UC; Pebble Beach: Smith 1944, p. 45 ); San Luis Obispo Co ., Calif. ( San Simeon to Shell Beach: Sparling 1977, p. 30 ); Channel Is ., Calif. ( San Miguel I ., Anacapa I ., Santa Catalina I.: Murray and Littler 1989, p. 65; Santa Cruz I.: Apt et al. 1988, p. 40; San Clemente I.: Murray 1974, p. 39 ); throughout southern Calif. ( Dawson 1959 b, pp. 186, 188 ); Punta Bandera, Baja Calif. ( L. Aguilar Rosas and Pacheco Ruiz 1986, p. 77 ) to Caleta de Campos, Michoac & aacute; n ( Le & oacute; n et al. 1993, p. 199 ), including Gulf of California as far north as Bah & iacute; a Kino, Sonora ( Mendoza Gonz & aacute; lez and Mateo Cid, 1986, p. 419 )
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Taxonomy:
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Tanner 1986
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Life History:
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alternation of isomorphic phases, with the sporophyte producing quadriflagellate zoospores and unisexual gametophytes producing biflagellate anisogametes; male and female gametes capable of parthenogenetic development ( Tanner 1986; Chihara 1969 a; Smith 1947 )
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Biology/Ecology:
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R. Aguilar Rosas and Machado Galindo 1990, p. 188; Stewart 1989, p. 440; Foster et al. 1988, p. 35; Sousa 1984, p. 1923; Littler and Arnold 1982, p. 309; Seapy and Littler 1982; Littler 1981, p. 401; Sousa et al. 1981, p. 298; Littler 1980 a; Thom 1980 b, p. 105; Littler and Murray 1978, p. 588; Murray and Littler 1978; Seapy and Littler 1978, p. 298; Littler and Murray 1977, p. 11; Devinny and Kirkwood 1974, p. 102; Littler and Murray 1974 b, p. 132; Murray and Littler 1974, p. 72; Rigg and Miller 1949
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Physiology:
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Wiltens et al. 1978, p. 2790
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