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Sphacelaria racemosa Greville

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drawing of Sphacelaria racemosa
in part after Prud'homme van Reine 1982
Illustrations:
Abbott and Hollenberg 1976, p. 219, fig. 182 (cellular detail); Hollenberg 1970a, p. 164, fig. l (branching pattern); Prud'homme van Reine 1982, p. 161, figs. 353, 354 (habit), p. 163, figs. 368, 369 (unilocular organs), p. 164, figs. 371, 372 (unilocular organs), figs. 370, 374 (plurilocular organs). Note: Scagel 1967, p. 85, fig. 28 is not this species, but is S. norrisii Display references
Pacific Coast Distribution:
St. Lawrence I., Bering Sea, Alaska (Setchell and Gardner 1925, p. 81, as S. racemosa var. arctica) to Devil's Gate, Cape Mendocino, Humboldt Co., Calif. (Dawson 1965a, p. 13) Display references
Taxonomy:
Prud'homme van Reine 1982, p. 160 Display references
Life History:
unilocular plants are found more common in culture (Prud'homme van Reine 1982, p. 167) Display references
Phenology:
unilocular plants are found in the south, and a mix of unilocular and plurilocular plants are found in the north. Plants reproduce during the winter.
Biology/Ecology:
Burns et al. 1984 (as S. furcigera); Burns et al. 1982 (as S. furcigera); Burns 1981 (as S. furcigera); Dworetzky et al. 1980 (as S. furcigera) Display references
Epiphytes:
Erythrotrichea carnea

 
J F M A M J J A S O N D
BRITISH
COLUMBIA
Pl                  xx   Common, on rocks, shells, and epiphytic on other algae in pools, the low intertidal, and the upper subtidal in moderately exposed habitats. Scagel 1957, p. 73. Scagel 1973, p. 135. Hawkes et al. 1979, p. 95. Display references
U x                  xx
S  xxxxxxx  xx  
COLUMBIA
RIVER
Pl                         Uncommon, present as sand choked tufts in shallow pools and on the rocks of the mid intertidal. Doty 1947, p. 33. Markham and Celestino 1977, p. 259. Display references
U x  x                  
S      xxxx        x
CAPE
ARAGO
Pl                         Uncommon, forming sand choked turfs in inner pools, mid, and low intertidal. Dawson 1965a, p. 13. Display references
U x  x                  
S x    x    x      x  
CAPE
MENDOCINO
Pl                        
U                        
S                        
POINT
ARENA
Pl                        
U                        
S                        
SAN
FRANCISCO
Pl                        
U                        
S                        

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Page dated: Mon Feb 13 21:24:26 2006
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