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DECEW'S GUIDE

Myrionema balticum ( Reinke ) Foslie
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from Setchell and Gardner 1922 a Synonyms: Phycocelis balticum ( Reinke ) Foslie, Myrionema balticum f. pedicellatum Setchell et Gardner; M. balticum f. californicum Setchell et Gardner; M. attenuatum Setchell et Gardner; M. attenuatum f. doliforme Setchell et Gardner Illustrations: Abbott and Hollenberg 1976, p. 159, fig. 122 ( plurilocular plant ); Loiseaux 1970 b, p. 250, fig. l ( habit, morphological variation ); Setchell and Gardner 1922 a, pl. 33, figs. 11, 12 ( plurilocular plant ), pl. 34, figs. 6, 7 ( plurilocular plant ), figs. 4, 5 ( plurilocular organs ) Pacific Coast Distribution: Sitka, Alaska ( Setchell and Gardner 1903, p. 239, as Phycocelis baltica ); Trinidad, Humboldt Co ., Calif. ( Dawson 1965 a, p. 13 ); Bodega Head, Sonoma Co ., Calif. ( Kjeldsen 1995, p. 25 ); Moss Beach, San Mateo Co ., Calif. ( Loiseaux 1970 b, p. 249 ); Monterey Peninsula, California ( Smith 1944, p. 106 ) Taxonomy: Loiseaux 1970 b, p. 248 Life History: microscopic field plants with uniseriate plurilocular organs bore zooids which gave rise to germlings which grew into microscopic discs. Uniseriate filaments grew from these discs, many of which differentiated into uniseriate plurilocular organs identical to the parent plants. Upon discharge, these organs were replaced with pluriseriate plurilocular organs. The life history appears to be asexual via a direct recycling ( Loiseaux 1970 b, p. 248 ) Phenology: only plurilocular plants known

							J	F	M	A	M	J	J	A	S	O	N	D
BRITISH COLUMBIA						Pl
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COLUMBIA RIVER						Pl
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CAPE ARAGO						Pl													Uncommon, subtidal epiphyte on Pterygophora stipes. Dawson 1965 a, p. 13.
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CAPE MENDOCINO						Pl
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POINT ARENA						Pl													Common, subtidal epiphyte on the blades of Laminaria setchellii in moderately exposed habitat. Johansen 1966 a, p. 9. Kjeldsen 1995, p. 25.
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SAN FRANCISCO						Pl													Uncommon, subtidal epiphyte on the stipes of Macrocystis , Laminaria , and the base of Mazzaella corymbifera and outer ends of Phyllospadix leaves. Smith 1944, pp. 105, 107.
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