| A | B |
|---|
| angiosperms | Phylum Anthophyta |
| carpel | parent diploid sporophytic tissue |
| parasites | mistletoe, dodder, beechdrops); mycotrophs (derive nutrients from fungi |
| epiphytes | some orchids); “carnivorous” (ex. pitcher plants, sundews, Venus flytrap |
| eudicots and monocots | by far most of the living angiosperm species are found within two monophyletic groups, |
| eudicots | most have embryos have two cotyledons (seed leaves) |
| cotyledons | seed leaves |
| annuals | entire growth cycle in one year or less |
| monocots | embryos have one cotyledon |
| Laurasia | North America, Europe, Asia |
| Gondwanaland | South America, Africa, Australia, Antarctica, India, New Zealand) |
| calyx | sepals; |
| corolla | petals |
| androecium | stamens |
| gynoecium | female reproductive structure |
| ovary | swollen base with 1 to hundreds of ovules; develops into fruit |
| stigma | tip; sticky and/or feathery to catch pollen |
| style | usually present; separates stigma from ovary |
| polar nuclei | one nuclei from each group migrates toward center; these are |
| embryo sac or megagametophyte | female gametophyte) |
| dichogamous | stamens and pistils reach maturity at different times |
| genetic self-incompatibility | pollen tube arrested or never germinates |
