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DECEW'S GUIDE

Ectocarpus commensalis Setchell et Gardner
	CONTENTS     FIGURES     ABOUT     INDEXES: Reds · Greens · Browns     KEYS: Browns

intercalary and pedicellate plurangia, rhizoidal holdfast Synonyms: Ectocarpus siliculosus var. parvus Saunders, E. confervoides f. parvus ( Saunders ) Setchell et Gardner, E. eramosus Setchell et Gardner, E. mesogloiae Setchell et Gardner, E. dimorphus Silva, E. parvus ( Saunders ) Hollenberg, E. confervoides f. variabilis Saunders, E. variabilis ( Saunders ) Smith Illustrations: Abbott and Hollenberg 1976, p. 128, fig. 89 ( plurilocular plant and plurilocular detail ); Apt et al. 1988, p. 58, fig. 15 ( photomicrograph: habit, plant with plurilocular sporangia ); Hollenberg and Abbott 1968, p. 1236, fig. 2 ( plurilocular plant, as E. confervoides var. pygmaeus ); Saunders 1898, pl. 15, figs. 5 & ndash; 9 ( plurilocular and unilocular plants, as E. confervoides var. pygmaeus ) Pacific Coast Distribution: Shumagin Is ., Alaska ( Scagel 1957, p. 71, as E. pygmaeus ) to Punta Descanso, Baja Calif. ( Dawson 1945 f, p. 64, as E. confervoides f. pygmaeus ); Channel Is ., Calif. ( Santa Cruz I.: Apt et al. 1988, p. 41 ); Laguna Juluapan, Colima, M & eacute; xico ( Mateo Cid and Mendoza Gonz & aacute; lez 1991, p. 23 ); Pared & oacute; n, Chiapas ( Mendoza Gonz & aacute; lez and Mateo Cid 1996: 69 ) Taxonomy: H. Kim and Lee 1992 a; Hollenberg 1971 b, p. 283 Life History: uninvestigated, but presumably alternation of isomorphic phases Biology/Ecology: Devinny 1978, p. 358; Emerson and Zedler 1978, p. 317

							J	F	M	A	M	J	J	A	S	O	N	D
BRITISH COLUMBIA						Pl													Rare, epiphytic on larger brown algae and Codium setchellii in the low intertidal and upper subtidal in moderately sheltered to fully exposed habitats. Scagel 1973, p. 133. Hawkes et al. 1979, p. 92.
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COLUMBIA RIVER						Pl													Rare, epiphytic on Laminaria sinclairii , Pterygophora , and Nereocystis . Doty 1947, p. 32. Markham and Celestino 1977, p. 258.
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CAPE ARAGO						Pl													Rare, epiphytic on Cystoseira , on rocks and gooseneck barnacles. Dawson 1965 a, p. 12.
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CAPE MENDOCINO						Pl													Rare, epiphytic on Postelsia , Pterygophora , Cystoseira , Codium , Egregia , Laminaria , Schizymenia , Lessoniopsis . Kjeldsen 1995, pp. 19, 20.
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POINT ARENA						Pl													Rare, epiphytic on Postelsia , Pterygophora , Cystoseira , Codium , Egregia , Laminaria , Schizymenia , Lessoniopsis in moderately to fully exposed habitats. Johansen 1966 a, p. 93. ( as various Ectocarpus spp. ) Kjeldsen 1995, pp. 19, 20.
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SAN FRANCISCO						Pl													Rare, epiphytic on Laminariales, Desmarestia , and Egregia in the lower intertidal. Smith 1944, p. 84. Silva 1979, p. 332.
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