Rhizoclonium tortuosum (Dillwyn) Kützing

Synonyms:

Chaetomorpha tortuosa (Dillwyn) Kleen

Illustrations:

Blair 1983, p. 200, fig. 12 (photo: habit), fig. 13 (photo: reproductive cell with anisogametes); Kornmann 1972a, p. 21, fig. 16 (photos: vegetative and zoosporangial filaments), p. 22, fig. 17A (zoospores), fig. 17B, C (germlings from zoospores), fig. 17D (gametes); Kornmann and Sahling 1977, p. 39, fig. 13:A, B (photos: habit), C, D (photos: vegetative filaments)

Pacific Coast Distribution:

Alaska (Unalaska Bay, Aleutian Is.: Setchell and Gardner 1903, p. 221, as Chaetomorpha cannabina; to Annette I., Revillagigedo Channel: Saunders 1901, p. 413, as C. cannabina); British Columbia (Felix Bay: Blair 1983, p. 199; Barkley Sound, Vancouver I.: Garbary et al. 1985, p. 43); Washington (San Juan I.: Blair 1983, p. 199; Whidbey I.: Setchell and Gardner 1903, p. 223); Oregon (Coos Bay, Coos Co. to Chetco Cove, Curry Co.: Doty 1947, p. 25); Duxbury Reef, Marin Co., Calif. (Silva 8013 in UC); Land's End, San Francisco, Calif. (Silva 10160 in UC); Moss Beach, San Mateo Co., Calif. (Blair 1983, p. 199); Monterey Peninsula, Calif. (Smith 1944, p. 62); Long Beach, Los Angeles Co., Calif. (Blair 1983, p. 199); San Elijo Lagoon, San Diego Co., Calif. (Hollenberg 1971b, p. 283)

Taxonomy:

Miyaji 1992; Burrows 1991, p. 175; Blair 1983; Patel 1971

Life History and Morphology:

probably alternation of isomorphic phases, with quadriflagellate zoospores and biflagellate isogametes (Kornmann 1972a); vegetative reproduction predominating in nature (Burrows 1991, pp. 175, 177)

Chromosomes:

Miyaji 1992; Patel 1971; Sinha 1958

Biology/Ecology:

Lubchenco 1982