| A | B |
| alternation of generations | cycling of plants between gametophyte and sporophyte |
| angiosperms | flowering plants |
| anther | pollen-bearing portion of stamen |
| Anthophyta | division name of the angiosperms |
| bryophytes | avascular land plants |
| calyx | outermost whorl of flower, contains sepals |
| carpel | portion of flower that contains ovule |
| coevolution | mutual adaptation of two types of organims that put selective pressure on each other |
| Coniferophyta | gymnosperms that make seeds in cones |
| corolla | collective term for the petals of a flower |
| cuticle | waxy outer layer secreted by plants to retard water loss |
| Cycadophyta | gymnosperms with broad leaves that look like palms |
| dicot | angiosperms with seeds having two cotyledons and flower parts in fours or fives |
| double fertilization | mode of fertilization in angiosperms |
| endosperm | seed tissue serving as food for developing embryo |
| Equisetophyta | fern allies with silica in cell walls, true roots, jointed stems and complex leaves |
| filament | flower part that anchors anther to rest of flower |
| gametangium | chamber where sex cells are made |
| gametophyte | haploid phase of plant that makes sex cells |
| Gingkophyta | gymnosperms whose males have strobili and females have fleshy, stinky seeds |
| Gnetophyta | gymnosperms having properties of both conifers and angiosperms |
| gymnosperms | seed producers who do not make flowers |
| heterosporous | having distinct male and female gametophytes |
| homosporous | gametophytes make both male and female gametes |
| Lycophyta | fern allies having true roots, stems and simple leaves |
| megaphyll | leaf with several veins |
| microphyll | leaf with only one vein |
| monocot | angiosperms with seeds having only one cotyledon and flower parts in threes |
| nucellus | megasporangium in seed producing plants |
| ovule | nucellus + integuments |
| petal | modified leaf found in flowers that is usually large and brightly colored |
| phloem | vascular tissue that transports sugar, composed of living cells |
| plant | multicellular photoautotrophic eukaryote |
| Psilotophyta | fern allies lacking true roots and leaves |
| Pterophyta | ferns |
| seed | fertilized ovule and its contents |
| sepal | modified leaf found in outer whorl of flowers, protects petals |
| sporangium | chamber in which spores are made |
| spore | haploid reproductive cells made by diploid plant |
| sporophyll | leaf that produces spores |
| sporophyte | diploid form of plants that produce haploid reproductive cells |
| stamen | anther + filament |
| stomata | pores that open and close to regulate water and gas levels in plants |
| tracheophytes | vascular plants |
| vascular | having specialized tissues for transport of water and nutrient throughout organism |
| whorl | arranged in a circular pattern |
| xylem | vascular tissue for transport of water, composed of dead cells |