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Petrospongium rugosum (Okamura) Setchell et Gardner

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drawing of Petrospongium rugosum
section of unilocular plant from Setchell and Gardner 1925
Synonyms:
Cylindrocarpus rugosus Okamura
Illustrations:
Sporophyte: Abbott and Hollenberg 1976, p. 178, fig. 144 (habit and reproductive anatomy); Hollenberg 1942a, p. 530, figs. 1–10 (x-sections: unilocular and plurilocular organs, vegetative basal system, zooids, and germlings); Setchell and Gardner 1925, pl. 39, fig. 42 (x-section, unilocular organs), fig. 43 (habit). Gametophytes: Arasaki 1948c, p. 100, figs. 43–46 (plurilocular gametangia) Display references
Pacific Coast Distribution:
Barkley Sound, Vancouver I., British Columbia (Garbary et al. 1985, p. 44); Coos Head, Ore. (ORE 11691, OSC 4365); Humboldt Co., Calif. (Petrolia Beach, 4 miles south of Cape Mendocino: DeCew in UC; Shelter Cove: HSC 10071); Mendocino Co., Calif. (Fort Bragg; Chadbourne Gulch/Mussel Shoals; McKerricher Beach: Kjeldsen 1995, p. 17); Sonoma Co., Calif (Shell Beach; Bodega Head: Kjeldsen 1995, p. 17); Duxbury Reef, Marin Co., Calif. (UC 99392, UC 751362); San Francisco Bay, Calif. (Silva in UC); Moss Beach, San Mateo Co., Calif. (Smith 1944, p. 116); Monterey Peninsula, Calif. (Smith 1944, p. 116); San Luis Obispo Co., Calif. (Sparling 1977, p. 31); Channel Is., Calif. (San Miguel I., Santa Cruz I., San Nicolas I., Santa Barbara I., Santa Catalina I.: Littler 1980b, p. 299; San Clemente I.: Littler and Murray 1977); common throughout southern Calif. (Dawson 1959b, pp. 186, 188); Baja Calif. (Isla San Benito, Isla Asuncion: Dawson 1953b, p. 115) Display references
Taxonomic Notes:
p. 000
Life History:
alternation of heteromorphic phases, with the macroscopic plants bearing unilocular organs (and dubious plurilocular structures on separate macroscopic plants from southern Calif.), thus zoospores, and the microscopic filamentous stage bearing plurilocular gametangia. The gametes can facultatively recycle the gametophytic phase (Arasaki 1948c; Hollenberg 1942a) Display references
Biology/Ecology:
Stewart 1989, p. 441; Littler and Arnold 1982, p. 309; Seapy and Littler 1982; Thom 1980b, p. 105; Murray and Littler 1978, p. 509; Littler and Murray 1977, p. 22 Display references

Pl=plurilocular; U=unilocular; S=sterile
J F M A M J J A S O N D
BRITISH
COLUMBIA
Pl                         Uncommon, on rocks of the upper and mid intertidal. Garbary et al. 1985, p. 44. Display references
U                  x    
S                        
COLUMBIA
RIVER
Pl                         Uncommon, on the side of a surge channel wall. (ORE 11691, OSC 4365).
U            xx        
S            xx        
CAPE
ARAGO
Pl                         Looked for but not found. (DeCew).
U                        
S                        
CAPE
MENDOCINO
Pl                         Uncommon, on rock on long flat slopes in the mid to upper intertidal on exposed coasts (HSC 10071; Kjeldsen 1995, p. 17; DeCew in UC). Display references
U    x  x  x    x    
S                        
POINT
ARENA
Pl                         Common, on mid and upper intertidal rocks in exposed habitats. Johansen 1966a, p. 98. Kjeldsen 1995, p. 17. Display references
U x  x  x    x  xxx
S                        
SAN
FRANCISCO
Pl                         Common, on upper mid intertidal rocks on exposed coast and mouth of San Francisco Bay. Smith 1944, p. 116. Silva 1979, p. 335. Display references
U    x    xx    xx  
S    x    xxxxxxx

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