CENTER FOR PHYCOLOGICAL DOCUMENTATION
DECEW'S GUIDE

Dictyota binghamiae J. Agardh
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habit < missing x. s. > Misapplied Names: Dictyota flabellata ( Collins ) Setchell et Gardner Illustrations: Abbott and Hollenberg 1976, p. 208, fig. 171 ( habit ); Dawson et al. 1960 a, pl. 2, fig. 2 a ( habit ), fig. 2 b ( x-section of blade ); Foster et al. 1972, p. 97, figs. 2, 3 ( photos: habit ), p. 99, figs. 6, 7 ( photos: surface view and x-section of male sorus ), figs. 8, 9 ( photos: surface view and x-section of female sorus ), p. 100, figs. 11, 12 ( photos: surface view and x-section of tetrasporangial sorus ); Setchell and Gardner 1925, pl. 34, figs. l, 2 ( habit: x-section of cells at margin ); Smith 1944, pl. 15, fig. 6 ( habit ) Pacific Coast Distribution: Langara I ., Queen Charlotte Is ., British Columbia ( Hawkes et al. 1979, p. 92 ) to Eagle Pt ., San Juan Is ., Washington ( Waaland 1971, p. 100 ); North Bay, Cape Arago, Coos Co ., Oregon ( Doty 1947, p. 34 ); Crescent City, Del Norte Co ., Calif. ( Silva 7762 in UC ); Mendocino Co ., Calif. ( Fort Bragg, K. Johnson in UC; Point Cabrillo, J. DeMartini in UC ); Salt Point State Park, Sonoma Co ., Calif. ( Kjeldsen 1995, p. 19 ); Monterey Peninsula, Calif, ( Smith 1944, p. 102 ); Diablo Cove, San Luis Obispo Co ., Calif. ( Sparling 1977, p. 33 ); Santa Barbara, Calif. ( J. Agardh 1894, p. 72 ); Channel Is ., Calif. ( Santa Rosa I ., San Nicolas I ., San Clemente I.: Miller in UC; Anacapa I.: Dawson and Neushul 1966, p. 174; Santa Cruz I ., Santa Catalina I: Nicholson and Cimberg 1971, p. 377 ); San Diego Co ., Calif. ( Stewart 1991, p. 48 ); Baja Calif. ( Cortes and Tanner banks: Lewbel et al. 1981, p. 165; Punta Abreojos: Dawson et al. 1960 b, pp. 12, 14; Islas Los Coronados: Miller in UC; Isla Guadalupe: Stewart and Stewart 1984, p. 141; Isla Magdalena: Taylor 1945, p. 88 ) Taxonomy: Dawson 1951 a Life History: uninvestigated, but presumably alternation of isomorphic phases, with a diploid thallus bearing unilocular aplanosporangia and dioecious haploid thalli bearing either oogonia or antheridia Biology/Ecology: Harrold et al. 1988, p. 138; Foster and Schiel 1985, p. 28; Pace 1981, p. 460; Devinny and Kirkwood 1974, p. 102; Scagel 1972; Waaland 1971 Epiphytes: Acrochaetium simplex Chemistry: Manley et al. 1992; Teixeira and Kelecom 1988; Ragan and Glombitza 1986, p. 187

							J	F	M	A	M	J	J	A	S	O	N	D
BRITISH COLUMBIA						Pl													Uncommon ephemeral, in the subtidal to 15 meters. ( Tilden 335. Sackman ' s Pt. near Tracyton, Kitsap Co. Wash. July 1898 in UC ). J. Waaland 1971, pp. 100 & ndash; 102. J. Norris and Abbott 1972, p. 89. Scagel 1972, p. 261. Hawkes et al. 1979, p. 92.
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COLUMBIA RIVER						Pl													Rare, in drift. Doty 1947, p. 34 ( as D. flabellata ).
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CAPE ARAGO						Pl													Rare, on low intertidal rock, Crescent City. ( PCS 1965 ).
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CAPE MENDOCINO						Pl													Rare, in the subtidal to 30 feet. On Laminaria setchellii stipe and on vertical walls of surge channel. ( DeCew in UC ).
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POINT ARENA						Pl													Rare, in the subtidal at 35 feet at Salt Point State Park. Kjeldsen 1995, p. 19.
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SAN FRANCISCO						Pl													Rare, in pools, in the low intertidal; subtidal 15 & ndash; 135 ft. on boulder tops, and partially in Macrocystis beds; on Nereocystis floats and drift. McLean 1962, p. 104. Hollenberg and Abbott 1966, p. 19 [ 629 ]. Devinny and Kirkwood 1974, p. 102.
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