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Dictyosiphon foeniculaceus (Hudson) Greville

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drawing of Dictyosiphon foeniculaceus
habit, branch tip, and x.s.
Synonyms:
Dictyosiphon sinicola Gardner
Illustrations:
Sporophyte: Gardner 1940, pl. 31 (photo: habit) Setchell and Gardner 1925, pl. 40, fig. 47 (habit), fig. 48 (branch tip), fig. 49 (unilocular sporangia); Peters and Müller 1985, p. 443, fig. 1 (photo: habit), figs. 9, 10 (photos: young protonemal plants). Gametophytes: Peters and Müller 1985, p. 443 fig. 2 (photo: plurilocular plant) Display references
Pacific Coast Distribution:
Amchitka I., Aleutian Is., Alaska (Lebednik and Palmisano 1977, p. 360) to Friday Harbor, San Juan I., Wash. (Setchell and Gardner 1903, p. 248, as D. chordaria f. gelatinosa); Cape Blanco, Ore. (G. Hansen 1997, p. 189) Display references
Life History:
alternation of heteromorphic phases. Isolates from Sweden and Newfoundland had a macroscopic sporophyte with unilocular organs which bore zoospores which germinated to form dioecious microscopic filaments with plurilocular gametangia. Zygotes and unfused isogametes gave rise to filamentous protonemas from which grew macroscopic plants similar to field sporophytes (Saga 1986; Peters and Müller 1985; Arasaki 1949) Display references
Chromosomes:
Cole 1967b, p. 522 Display references
Biology/Ecology:
Lüning 1990 Display references
Physiology:
Lüning 1990 Display references
Chemistry:
Ragan and Glombitza 1986 Display references

 
J F M A M J J A S O N D
BRITISH
COLUMBIA
Pl                         Uncommon, on stones and on other algae in the mid and low intertidal where the water is quiet. Scagel 1957, p. 92. Display references
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COLUMBIA
RIVER
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CAPE
ARAGO
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CAPE
MENDOCINO
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POINT
ARENA
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SAN
FRANCISCO
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Page dated: Mon Feb 13 21:24:26 2006
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