Myrionemataceae

From Palaeos.org

Myrionemataceae

Parent taxa: Phaeophyceae, Melanophycidae, Ectocarpales.

Description: (based on information from DeCew's Guide) Minute epiphytic filamentous or disk-shaped brown algae. Unilocular and/or plurilocular reproductive organs. Reproduction may be either sexual or asexual.

Comments: The Myrionemataceae seem to receive relatively little attention, probably because of their minute size. Spores from filamentous individuals in at least some species may give rise to disc-shaped progeny, or vice versa, but there does not appear to be a proper alternation of generations as progeny may also have the same growth habit as their parent.

Taxonomy

<==Myrionemataceae
   |--Compsonema
   |    |--C. sessile Setchell & Gardner 1922
   |    `--C. sporangiiferum Setchell & Gardner 1922
   `--Myrionema
        |--M. compsonematoides Setchell & Gardner 1922
        |--M. foecundum
        |    |--M. f. f. foecundum
        |    |--M. f. f. ramulosum Setchell & Gardner 1922
        |    `--M. f. f. simplicissimum Setchell & Gardner 1922
        |--M. globosum
        |    |--M. g. f. globosum
        |    `--M. g. f. affine Setchell & Gardner 1922
        |--M. primarium Setchell & Gardner 1922
        `--M. strangulans Greville 1827

* Type species of genus indicated

Links

DeCew, T., & P. C. Silva. 2003. DeCew's Guide to the Seaweeds of British Columbia, Washington, Oregon, and Northern California.

References

Scagel, R. F. 1957. An annotated list of the marine algae of British Columbia and northern Washington (including keys to genera). National Museum of Canada Bulletin 150: 1-289.

Credits

description CKT071220; taxonomy CKT071031