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Synonyms:
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Derbesia pacifica Jao
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Illustrations:
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Abbott and Hollenberg 1976, p. 114, fig. 73 (habit, sporangial plant); Burrows 1991, p. 185, fig. 58:A (branch septum), C (young sporangium), D (mature sporangium); Hollenberg 1935, pl. 3, figs. 20, 21 (zygotes), figs. 22–33 (germinating zygotes and germlings); Kornmann and Sahling 1977, p. 52, fig. 21:A, B (photos: sporangial plant); Scagel 1966, pl. 1, figs. A, F (branching pattern), fig. B (rhizoidal holdfast), fig. C (branch tip), fig. D (protoplast detail), fig. E (branch septum), figs. G, H (development of sporangia), fig. I (stephanospore); Scagel 1967, p. 67, fig. 21:c (habit)
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Pacific Coast Distribution:
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Alaska (Adak I., Aleutian Is.: Scagel 1966, p. 114; Yakutat Bay: D. Saunders 1901, p. 415 (as D. vaucheriaeformis); Sitka: D. Saunders 1901, p. 415); British Columbia (Langara I., Queen Charlotte Is.: Hawkes et al. 1979, p. 89; to Flat Top Is., Strait of Georgia: Lindstrom 1973, p. 103); Washington (Turn I., San Juan Is.: Jao 1937, p. 107; Whidbey I.: Jao 1937, p. 107 (as D. vaucheriaeformis); Seattle: Thom et al. 1977, p. 269); Cape Arago, Coos Co., Oregon (Doty 1947, p. 28); Fort Bragg, Mendocino Co., Calif. (Kjeldsen 1995, p. 6); Bodega Head, Sonoma Co., Calif. (Johansen 1966a, p. 91); Monterey Peninsula, Calif. (Smith 1944, p. 71); Channel Is., Calif. (Santa Cruz I.: Apt et al. 1988, p. 40; Santa Barbara I.: Murray and Littler 1989, p. 66; Santa Catalina I.: Murray 1974, p. 39); Palos Verdes, Los Angeles Co., Calif. (Moe 22 in UC); Laguna Beach, Orange Co., Calif. (Fosberg in UC); San Diego Co., Calif. (La Jolla: Smith 1944, p. 72; Mission Bay and Pt. Loma: Stewart 1991, p. 35); Banco de Cortés, Baja Calif.: Lewbel et al. 1981, p. 165); Punta Banda, Baja Calif. (Devinny 1978, p. 358) to Zipolite, Oaxaca (León Tejera and González González 1994, p. 492), including Gulf of California north to Bahía Concepción, Baja Calif. (Mateo Cid et al. 1993, p. 52)
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Taxonomy:
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Scagel 1966, p. 112
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Life History:
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not completely known for Pacific coast populations, but probably same as in Europe, where unisexual spherical gametophytes (Halicystis ovalis); alternate with a siphonous sporophyte (Derbesia marina) by means of biflagellate anisogametes and stephanospores (Kornmann 1938); Neumann 1974; Neumann 1969b; Neumann 1967
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Chromosomes:
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Neumann 1967
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Biology/Ecology:
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Devinny 1978, p. 358; Devinny and Kirkwood 1974, p. 102
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Chemistry:
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Rönnerstrand 1943, p. 48
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