Hecatonema primarium (Setchell et Gardner) Loiseaux

after Setchell and Gardner 1922a and 1922b

Synonyms:

Myrionema primarium Setchell et Gardner, M. foecundum f. simplissimum Setchell et Gardner, M. foecundum f. ramulosum Setchell et Gardner, M. foecundum f. divergens Setchell et Gardner, M. foecundum f. majus Setchell et Gardner, M. compsonematoides Setchell et Gardner, M. hecatonematoides Setchell et Gardner

Illustrations:

Abbott and Hollenberg 1976, p. 163, fig. 129 (plurilocular plant); Loiseaux 1970b, p. 256, figs. 4a, b (plurilocular plant), fig. 4c (plurilocular cultured plants); Setchell and Gardner 1922a, pl. 32, fig. 7 (plurilocular plant), pl. 33, fig. 8 (plurilocular plant), figs. 9, 10 (plurilocular plant), pl. 34, fig. 8 (plurilocular plant), fig. 11 (plurilocular plant), fig. 12 (plurilocular plant)

Pacific Coast Distribution:

Kodiak I., Gulf of Alaska, Alaska (Setchell and Gardner 1925, p. 461); Bamfield, Vancouver I., British Columbia (Scagel 1973, p. 133) to Carmel Bay, Monterey Peninsula, Calif. (Smith 1944, p. 105); Pt. Conception, Santa Barbara Co., Calif. (Loiseaux 1970b, p. 257)

Taxonomy:

Loiseaux 1970b, p. 257

Life History:

only plurilocular organs known from nature. These plants usually recycle themselves in culture. However, on rare occasions, unilocular plants have been found in culture. When cultures were started from these unilocular plants, plurilocular plants resulted, thus meiosis probably did not take place in the unilocular organ, and thus an alternation of generations may take place without a change in ploidy level (Loiseaux 1970b, p. 257)