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"x.s. after Doty 1947, surface after Setchell and Gardner 1920b"
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Illustrations:
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Abbott and Hollenberg 1976, p. 86, fig. 42 (habit); J. Phillips 1989, p. 422, fig. 5 (photos: habit, plants of various ages and habitats), p. 449, fig. 27: a (photo: holotype), b (photo: isotype), p. 451, fig. 28: a–d (photos: surface views, various portions of plant), f–i (photos: x-sections, various portions of plant), p. 452, fig. 29: a (photo: gametes), b (photo: zoospores), c–g (photos: development of plants in culture); Setchell and Gardner, 1920b, pl. 21, fig. 2 (photo: surface of vegetative plant), pl. 24 (photo: holotype); Smith 1947, p. 82, figs. 7–13 (zoospores, anisogametes, zygote)
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Pacific Coast Distribution:
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Vancouver I., British Columbia (Barkley Sound: Tanner 1979, p. 78; Glacier Pt.: R. Lee 1965b, p. 118); Oregon (Phinney 1977, p. 102); Fort Bragg, Mendocino Co., Calif. (Kjeldsen 1995, p. 13); Sonoma Co., Calif. (Shell Beach, Bodega Head, and Estero Americano: Kjeldsen 1995, pp. 12–13); Marin Co., Calif. (Dillon Beach: Kjeldsen 1995, p. 13; Bolinas: Smith 1944, p. 47); Monterey, Calif. (Smith 1944, p. 47). Note: Doty 6126 (in UC) from Chetco Cove, Curry Co., Ore., reported by Doty (1947, p. 10) as U. stenophylla, is U. fenestrata according to Tanner's annotation. Doty 4039 (in UC) from Big Sur, Monterey Co., Calif., was also reported by Doty as U. stenophylla but is probably not that species.
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Taxonomy:
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J. Phillips 1989, p. 452; Tanner 1979, p. 78; Setchell and Gardner 1920b, p. 271
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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 mostly of gametophytes, less commonly of sporophytes (J. Phillips 1990; Smith 1947)
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Biology/Ecology:
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R. Lee 1965b, p. 118
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