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Acrochaete geniculata ( Gardner ) O ' Kelly
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from Setchell and Gardner 1920 b Synonyms: Pseudodictyon geniculatum Gardner Illustrations: Abbott and Hollenberg 1976, p. 63, fig. 15 ( surface view, microscopic detail ); O ' Kelly 1983 a, p. 17, figs. 1 & ndash; 3 ( photos: endophytic habit ), figs. 4 & ndash; 11 ( photos: development of sporophyte and gametophyte in culture ), p. 18, fig. 12 ( zoospore ), fig. 13 ( male gamete ), fig. 14 ( female gamete ), fig. 15 ( pseudoparenchymatous cushion in culture ); Setchell and Gardner 1920 b, pl. 11, fig. 5 ( surface view, microscopic detail ), fig. 6 ( x-section, sporophyte with sporangia ) Pacific Coast Distribution: Vancouver I ., British Columbia ( Barkley Sound, Port Renfrew, Sooke: O ' Kelly 1983 a, p. 15; San Juan I ., Wash. ( R. Norris and West 1967, p. 115; O ' Kelly 1983 a, p. 15 ); Sunset Bay, Coos Bay, Ore. ( Doty 1947, p. 7 ); Trinidad Bay, Humboldt Co ., Calif. ( Dawson 1965 a, p. 6 ); San Francisco, Calif. ( Gardner 1909, p. 375 ); Monterey Peninsula, Calif. ( Pacific Grove: Smith 1944, p. 37; Moss Beach: O ' Kelly 1983 a, p. 15 ); Redondo Beach, Los Angeles Co ., Calif. ( Hollenberg 1971 b, p. 281, endophytic in Chondracanthus and thus dubious ) Taxonomy: O ' Kelly 1983 a; O ' Kelly 1980, p. 42 Life History: alternation of isomorphic phases; unisexual or bisexual gametophytes producing biflagellate anisogametes, sporophyte producing quadriflagellate zoospores ( O ' Kelly 1983 a ) Physiology: O ' Kelly 1982 b, p. 134

							J	F	M	A	M	J	J	A	S	O	N	D
BRITISH COLUMBIA						Repr													Uncommon, subtidal endophyte in Cymathere triplicata , Egregia menziesii , and Laminaria setchellii . R. Norris and West 1967, p. 115. O ' Kelly 1983 a, p. 15.
						Ster
COLUMBIA RIVER						Repr													Uncommon, in pools in the low intertidal and the subtidal, on the outer ends of Laminaria sinclairii . Doty 1947, p. 7.
						Ster
CAPE ARAGO						Repr													Uncommon, in pools in the low intertidal and the subtidal, in Laminaria . Dawson 1965 a, p. 6.
						Ster
CAPE MENDOCINO						Repr
						Ster
POINT ARENA						Repr
						Ster
SAN FRANCISCO						Repr													Uncommon, in pools in the low intertidal and the subtidal as an endophyte in the cortex of Dictyoneurum californicum , L. setchellii , L. sinclairii , and Egregia menziesii . O ' Kelly 1983 a, p. 15.
						Ster