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Unformatted text preview: or prothallus, is small but independent from the sporophyte and photosynthetic. It is often heart shaped. The motile sperm require H 2 0 for transport to egg. Most ferns are homosporous. Antheridia and archegonia may be on the same gametophyte or on separate gametophytes. After fertilization, the zygote and young sporophyte develop from within the archegonium. . The sporophyte rapidly becomes independent, however, and the gametophyte plant dies. Fern gametophyte Antheridia, ls Antheridia from surface...
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This note was uploaded on 01/08/2012 for the course BIO 213 taught by Professor Makina during the Fall '09 term at SUNY Stony Brook.
- Fall '09