Lecture Notes8

Develops haploid green heart shaped 1cm diameter

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: , Antheridia at base & archegonia near apex. Antheridia Despite being bisexual, gametophytes generally can't Despite fertilize own eggs. Fern Lifecycle: (p 422) Sporophyte (2N) Sori & Sporangia Mitosis Zygote (2N) Fertilization Archegonium & egg antheridium & sperm 2N 1N Meiosis Spores Mitosis Gametophyte (1N) = “Prothallus” Heterosporous vs. Homosporous Hetero orous lifecycles (p. 397) Homosporous: 1 type of spore, can develop into type male, female, or bisexual gametophyte. gametophyte. Most seedless vascular plants. Heterosporous: Produce 2 types of spores: megaspores megaspores Develop into female Develop gametophytes. gametophytes. microspores microspores Develop into male Develop gametophytes. gametophytes. All Seed Plants. 2 Lycophyte families & 3 fern Lycophyte families families Azolla caroliniana: a heterosporous water fern The End! The Version 12.10...
View Full Document

Ask a homework question - tutors are online