Term
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Definition
| Group composed of phylum Anthophyta; flowering plants |
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Definition
| Specialized reproductive structure of angiosperms |
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Term
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Definition
| Sporangium-bearing leaves |
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Term
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Definition
| Seed vessel of angiosperms |
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Term
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Definition
| Dicots, Eudicots; flower parts occurring in fours and fives, embryos with two cotyledons, true secondary growth, stem vascular bundles in a ring, net-like leaf veination |
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Term
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Definition
| Monocots; flower parts usually in threes, embryos with one cotyledon, no true secondary growth, scattered stem vascular bundles, parallel leaf veination |
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Term
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Definition
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Term
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Definition
| Non-reproductive flower parts |
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Term
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Definition
| Reproductive parts of a flower; sporophylls |
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Term
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Definition
| Collectively known as the calyx |
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Term
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Definition
| Collectively known as corolla |
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Term
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Definition
| Collective of sepals and petals together |
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Term
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Definition
| Swollen end of the flower stalk, place where all floral parts are attached to or embedded in |
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Definition
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Definition
| Stalk of a solitary flower or of an inflorescence |
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Term
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Definition
| Stalk of an individual flower within an inflorescence |
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Term
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Definition
| Male part of the flower, microsporophylls |
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Term
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Definition
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Term
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Definition
| Female part of flower; magasporophylls |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Top of male parts; composed of two pairs of pollen sacs (microsporangia) |
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Term
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Definition
| Producers of pollen grains within pollen sacs of anther |
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Term
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Definition
| Solitary carpel or several fused carpels |
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Term
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Definition
| Pistil composed of single carpel |
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Term
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Definition
| Pistil composed of two or more fused carpels |
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Term
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Definition
| Pollen receptive portion of carpel |
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Term
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Definition
| Portion through which pollen tubes grow from carpel |
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Term
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Definition
| Portion of carpel including ovules |
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Term
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Definition
| Extension of inner ovary wall |
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Term
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Definition
| Chamber surrounding each ovule or group of ovules |
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Term
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Definition
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Term
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Definition
| Flower in which the sepals, petals, and stamens are attached to the receptacle below the base of the flower |
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Term
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Definition
| Flower in which sepals, petals, and stamens are attached to an upward extension of the hypanthium |
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Term
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Definition
| Receptacle that surrounds the ovary |
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Term
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Definition
| Flower in which the bases of the sepals, petals, and stamens are all fused to one another and the ovary wall and appear as separate organs only above the top of the ovary |
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Term
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Definition
| Actinomorphic, or radial symmetry in a flower |
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Term
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Definition
| Zygomorphic, or bilateral flower |
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Term
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Definition
| Flower having all four whorls - calyx, corolla, androecium, and gynoecium |
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Term
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Definition
| Flower lacking one or more whorls |
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Term
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Definition
| Flower having both fertile whorls (stamens and carpels) |
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Term
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Definition
| Flower lacking one of the fertile whorls (stamens or carpels) |
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Definition
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Term
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Definition
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Term
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Definition
| Plant on which both both male and female flowers are present |
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Term
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Definition
| Plant bearing flowers of a single sex |
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Term
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Definition
| Flower parts fused with other parts of the same whorl, such as petals being fused to form a corolla tube |
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Term
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Definition
| Flower parts fused with parts of another whorl, such as when stamens are fused to the pistil |
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Term
| Ancestral characteristics |
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Definition
| Characteristics similar to to ancestors of present day species, like having separate and similar parts in each whorl |
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Term
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Definition
| Characteristics changed from the ancestral condition, such as flowers having smaller numbers of parts |
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Term
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Definition
| Four haploid microspores produced as a result of meiosis |
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Term
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Definition
| Two celled, highly reduced male gametophytes developing from each microspore by mitosis |
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Term
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Definition
| large cell occupying the inside of a pollen grain wall |
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Term
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Definition
| Small cell found within the tube cell |
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Term
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Definition
| Male gamete formed in generative cell that divides by mitosis, usually after formation of pollen tube |
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Term
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Definition
| Natural outer covering of an ovule; angiosperms have two |
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Term
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Definition
| A tough outer protective layer surrounding the ovules; Angiosperms have two |
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Term
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Definition
| Occurrence in angiosperms where two sperm fertilize the ovule, resulting in formation of a diploid embryo and the polyploid endosperm |
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Term
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Definition
| Diploid "baby" within a seed |
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Term
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Definition
| Polyploid tissue that provides the developing embryo with a food source |
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Term
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Definition
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Term
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Definition
| Opening though which the pollen tube grows prior to fertilization |
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Term
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Definition
| Megasporangium, where embryo develops; located just inside integuments |
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Term
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Definition
| Diploid cell in which meiosis will occur, resulting in the production of four megaspores |
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Term
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Definition
| Female gametophyte, megagametophyte; located within the nucellus |
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Term
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Definition
| Three haploid cells in a mature embryo sac located opposite the micropyle |
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Term
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Definition
| Two haploid cells flanking an egg cell at the micropyle end of an embryo sac |
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