Bryophyte - Bryophyte Sexuality

Bryophyte Sexuality

Individual liverwort, moss and hornwort plants can be unisexual or bisexual. The terms for this are as follows:

  • Dioicous bryophytes produce only antheridia (sperm producing structures) or archegonia (egg producing structures) on a single plant body.
  • Monoicous bryophytes produce both antheridia and archegonia on the same plant body.

Notice that these terms are not the same as monoecious and dioecious, which refer to whether or not a sporophyte plant bears megasporangia, microsporangia or both. Those terms generally apply only to seed plants.

Some bryophyte species may be either monoicous or dioicous depending on environmental conditions. Other species are exclusively unisexual or bisexual.

Read more about this topic:  Bryophyte