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Chapter 21 Divisions
| Term | Definition |
|---|---|
| Division Bryophyta | -Most familiar bryophytes are the mosses. -Structures that are similar to leaves. -Produce rootlike, multicellular rhizoids that anchor them to soil or another surface. -Water and other substances move throughout a moss by osmosis and diffusion. |
| Division Anthocerophyta | -Anthocerophytes are called hornworts. -Water, nutrients,and other substance move in hornworts by osmosis and diffusion. -One large chloroplast in each cell of the gametophyte and sporophyte. -Spaces around cells are filled with mucilage, or slime. |
| Division Hepaticophyta | -Hepaticophytes are referred to as liverworts. -Found in a variety of habitats. -Water, nutrients, and other substances are transported by osmosis and diffusion. |
| Division Lycophyta | -Sporophyte generation of lycophytes is dominant. -Reproductive structures produce spores that are club-shaped or spike-shaped. -Have roots, stems,and small, scaly, leaf like structures. |
| Division Pterphyta | -Ferns,horsetails.-Sporophyte produces roots and a thick underground stem called a rhizome, a food-storage organ.-The frond sporophyte generation of ferns.-Fern spores form in a structure called a sporangium.-Clusters of sporangia form a sorus. |
| Division Cycadophyta | -Cones contain male or female reproductive structures of cycads and other gymnosperm plants. -Evolved before plants with flowers. -The natural habitats for cycads are the tropics or subtropics. |
| Division Gnetophyta | -Can live as long as 1500-2000 years -Three genera of gnetophytes -Ephedrine is a compound found naturally in gnetophytes. |
| Division Ginkgophyta | -Only one living species, ginkgo biloba. -Has small, fan-shaped leaves. -Male and female reproductive systems are on separate plants. |
| Division Coniferophyta | -Reproductive structures of most conifers develop in cones. -Male and female cones are different branches. -Wax Like coating called cutin reduces water loss. -Conifer |
| Division Anthophyta | -First appeared in the fossil record about 130 million years ago. -Botanist classify anthophytes as monocots, dicots, or eudicots.(The same) |
Created by:
Alayna Long
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