Ectocarpus acutus Setchell et Gardner

habit of plurilocular plant and chloroplast detail

Note:

Ectocarpus acutus is considered conspecific with E. fasciculatus by H. Kim and Lee (1992a)

Synonyms:

Ectocarpus acutus var. haplogloiae Doty

Illustrations:

Abbott and Hollenberg 1976, p. 125, fig. 83 (plurilocular plant); Doty 1947, pl. 8, fig. a (epiphytic habit); Saunders 1898, pl. 21, fig. 3, 4 (plurilocular plants); Setchell and Gardner 1922d, pl. 48, fig. 36 (habit), fig. 37 (plurilocular organ variation), fig. 38 (chloroplast morphology), fig. 39 (detail of branching), pl. 49, fig. 41 (plurilocular organs)

Pacific Coast Distribution:

Bamfield, Vancouver I., British Columbia (Scagel 1973, p. 133) to Monterey Peninsula, Calif. (Smith 1944, p. 81); Lion Rock, near Diablo Cove, San Luis Obispo Co., Calif. (Sparling 1977, p. 33); San Pedro, Los Angeles Co., Calif. (Abbott and Hollenberg 1976, p. 124)

Life History:

uninvestigated, but presumably alternation of isomorphic phases. Plants exclusively plurangial in the north may recycle directly. Unilocular organs seen for first time (in UC)

Phenology:

this annual species appears sooner in the south than the north

Biology/Ecology:

Devinny and Kirkwood 1974, p. 102

Ultrastructure:

Bailey and Bisalputra 1969