LiverwortLiverworts are non-vascular land plants in the division Marchantiophyta ( ), also known as hepatics. Liverworts, mosses, and hornworts are collectively known as bryophytes. Like mosses and hornworts, liverworts have a gametophyte-dominant life cycle in which the sporophyte is dependent on the gametophyte. Liverworts occur as either thallose or leafy forms.
Flowering plantClade of seed plants that produce flowersFlowering plants are plants that bear flowers and fruits, and form the cladeAngiospermae (). The term angiosperm is derived from the Greek words ἀγγεῖον (angeion; 'container, vessel') and σπέρμα (sperma; 'seed'), meaning that the seeds are enclosed within a fruit. The group was formerly called Magnoliophyta.
FernClass of vascular plants Ferns (Polypodiopsida or Polypodiophyta) are a group of vascular plants that reproduce via spores and have neither seeds nor flowers. They reproduce in two phases, a short-lived gametophyte that reproduces sexually to develop a spore-bearing leaf structure. Some ferns produce coiled fiddleheads, which expand into fronds. The group includes over 10,500 extant species.
FlowerFlowers, also known as blossoms and blooms, are the reproductive structures of flowering plants. Typically, they are structured in four circular levels around the end of a stalk. These include: sepals, which are modified leaves that support the flower; petals, often designed to attract pollinators; male stamens, where pollen is presented; and female gynoecia, where pollen is received and its movement is facilitated to the egg.
ConiferGroup of seed plantsConifers () are a group of vascular plants and a subset of gymnosperms. They are woody trees and shrubs, mostly evergreen with a regular branching pattern, reproducing with male and female cones, usually on the same tree. They are wind-pollinated and the seeds are usually dispersed by the wind. Taxonomically, they make up the divisionPinophyta, also known as Coniferae. All extant conifers, except for the gnetophytes, are perennials with secondary growth.
Sexual reproductionSexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete (haploid reproductive cells, such as a sperm or egg cell) with a single set of chromosomes combines with another gamete to produce a zygote that develops into an organism composed of cells with two sets of chromosomes (diploid).
GymnospermThe gymnosperms ( ; from Ancient Greekγυμνός, gymnós'naked' and σπέρμα, spérma'seed', thus 'naked seed') are a group of woody, perennialseed-producing plants, typically lacking the protective outer covering which surrounds the seeds in flowering plants, that include conifers, cycads, ginkgos, and gnetophytes, forming the clade Gymnospermae. The name is based on the unenclosed condition of their seeds (called ovules in their unfertilized state).
HornwortHornworts are a group of non-vascularEmbryophytes (land plants) constituting the division Anthocerotophyta (). The common name refers to the elongated horn-like structure, which is the sporophyte. As in mosses and liverworts, hornworts have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of genetic information; the flattened, green plant body of a hornwort is the gametophyte stage of the plant.
Plant morphologyPlant morphology or phytomorphology is the study of the physical form and external structure of plants. This is usually considered distinct from plant anatomy, which is the study of the internal structure of plants, especially at the microscopic level. Plant morphology is useful in the visual identification of plants.
MossMosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) sensu stricto. Bryophyta sensu lato may also refer to the parent group, bryophytes, which comprises liverworts, mosses, and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations.
SpermSperm (pl.: sperm or sperms) is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger, female reproductive cell and a smaller, male one). Sperm cells contribute approximately half of the nuclear genetic information to the diploid offspring (excluding, in most cases, mitochondrial DNA).
Green algaeThe green algae (sing.: green alga) are a group of chlorophyll-containing autotrophicalgae consisting of the phylum Prasinodermophyta and its unnamed sister group that contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophyta) have emerged deep within the charophytes as a sister of the Zygnematophyceae. Since the realization that the Embryophyta emerged within the green algae, some authors are starting to include them.
dioeciousRelated word or term.monoeciousRelated word or term.*As an Amazon Associate I earn from qualifying purchases.