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In botany, "seta" refers to the stalk supporting the capsule of a moss or liverwort (both closely related in a clade called "Setaphyta"), and supplying it with nutrients. The seta is part of the sporophyte and has a short foot embedded in the gametophyte on which it is parasitic.
This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary of leaf morphology.
Seta – the area of the sporophyte between the capsule and foot (base). Stegocarpous – referring to a capsule with a differentiated and dehiscent operculum. Stoma – the "mouth" of the sporangia, from which spores are dispersed when the sporangia is mature. Tapetum – tissue which nourishes spores.
Fertilized eggs become zygotes, which develop into sporophyte embryos inside the archegonia. Mature sporophytes remain attached to the gametophyte. They consist of a stalk called a seta and a single sporangium or capsule. Inside the sporangium, haploid spores are produced by meiosis. These are dispersed, most commonly by wind, and if they land ...
seta A stiff chitinous or sclerotised hair or bristle. Also chaeta, cheta setaceous. being like or having the nature of a seta or of setae; setose; setose bearing, or covered in setae. setula Diminutive of seta. A small chitinous hair or bristle. setulose bearing, or covered in setulae. shade see central shade spiracle
caption=Setaria distantiflora (A.Rich.) Pilg., herbarium sheet. Setaria is a widespread genus of plants in the grass family. [5] [6] The name is derived from the Latin word seta, meaning "bristle" or "hair", which refers to the bristly spikelets.
Funaria is a genus of approximately 210 species of moss. Funaria hygrometrica is the most common species.Funaria hygrometrica is called “cord moss” because of the twisted seta which is very hygroscopic and untwists when moist.
While learning Latin is now less common, it is still used by classical scholars, and for certain purposes in botany, medicine and the Roman Catholic Church, and it can still be found in scientific names. It is helpful to be able to understand the source of scientific names.