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section of unilocular plant from Setchell and Gardner 1925
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Synonyms:
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Cylindrocarpus rugosus Okamura
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Illustrations:
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Sporophyte: Abbott and Hollenberg 1976, p. 178, fig. 144 (habit and reproductive anatomy); Hollenberg 1942a, p. 530, figs. 1–10 (x-sections: unilocular and plurilocular organs, vegetative basal system, zooids, and germlings); Setchell and Gardner 1925, pl. 39, fig. 42 (x-section, unilocular organs), fig. 43 (habit). Gametophytes: Arasaki 1948c, p. 100, figs. 43–46 (plurilocular gametangia)
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Pacific Coast Distribution:
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Barkley Sound, Vancouver I., British Columbia (Garbary et al. 1985, p. 44); Coos Head, Ore. (ORE 11691, OSC 4365); Humboldt Co., Calif. (Petrolia Beach, 4 miles south of Cape Mendocino: DeCew in UC; Shelter Cove: HSC 10071); Mendocino Co., Calif. (Fort Bragg; Chadbourne Gulch/Mussel Shoals; McKerricher Beach: Kjeldsen 1995, p. 17); Sonoma Co., Calif (Shell Beach; Bodega Head: Kjeldsen 1995, p. 17); Duxbury Reef, Marin Co., Calif. (UC 99392, UC 751362); San Francisco Bay, Calif. (Silva in UC); Moss Beach, San Mateo Co., Calif. (Smith 1944, p. 116); Monterey Peninsula, Calif. (Smith 1944, p. 116); San Luis Obispo Co., Calif. (Sparling 1977, p. 31); Channel Is., Calif. (San Miguel I., Santa Cruz I., San Nicolas I., Santa Barbara I., Santa Catalina I.: Littler 1980b, p. 299; San Clemente I.: Littler and Murray 1977); common throughout southern Calif. (Dawson 1959b, pp. 186, 188); Baja Calif. (Isla San Benito, Isla Asuncion: Dawson 1953b, p. 115)
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Taxonomic Notes:
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p. 000
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Life History:
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alternation of heteromorphic phases, with the macroscopic plants bearing unilocular organs (and dubious plurilocular structures on separate macroscopic plants from southern Calif.), thus zoospores, and the microscopic filamentous stage bearing plurilocular gametangia. The gametes can facultatively recycle the gametophytic phase (Arasaki 1948c; Hollenberg 1942a)
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Biology/Ecology:
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Stewart 1989, p. 441; Littler and Arnold 1982, p. 309; Seapy and Littler 1982; Thom 1980b, p. 105; Murray and Littler 1978, p. 509; Littler and Murray 1977, p. 22
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