- For the chronologer/historian occasionally mentioned in the works of early Christian writers, see Thallus (historian). Thallus was a Historian who wrote in Greek It is uncertain when he wrote but it was probably in the early 2nd century
Thallus, from Latinized Greek θαλλος (thallos), meaning a green shoot or twig, is an undifferentiated vegetative tissue of some non-mobile organisms, which were previously known as the thallophytes. Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome. Greek (el ελληνική γλώσσα or simply el ελληνικά — "Hellenic" is an Indo-European language, spoken today by 15-22 million people mainly Shoots are new plant growth they can include stems, flowering stems with flower buds leaves A twig is a small terminal Branch section that may bear leaves, Buds and sometimes the Flowers and Fruit of Plants Only In Developmental biology, cellular differentiation is the process by which a less specialized cell becomes a more specialized Cell type. The thallophytes are a Polyphyletic group of non-mobile Organisms traditionally described as " relatively simple Plants " or "
An organism or structure resembling a thallus is called thalloid, thallodal, thalliform, thalline, or thallose.
Even though thalli do not have organized and distinct parts (leaves, roots, and stems) as do the vascular plants, they may have analogous structures that resemble their vascular "equivalents". In Botany, a leaf is an above-ground Plant organ specialized for Photosynthesis. ROOT is an object-oriented program and library developed by CERN. A stem is one of two main structural axes of a Vascular plant. Vascular plants (also known as tracheophytes or higher plants) are those Plants that have lignified tissues for conducting Analogy is both the cognitive process of transferring Information from a particular subject (the analogue or source to another particular subject (the target and The analogous structures have similar function or macroscopic structure, but different microscopic structure; for example, no thallus has vascular tissue. This is an article about vascular tissue in plants For transport in animals see Circulatory system.
Although a thallus is largely undifferentiated in terms of its anatomy, there can be visible differences and functional differences. A kelp, for example, may have its thallus divided into three regions. Kelp are large Seaweeds ( Algae) belonging to the Brown algae and classified in the order Laminariales The parts of a kelp thallus include the holdfast (anchor), stipe (supports the blades) and the blades (for photosynthesis).
The thallus of a fungus is usually called a mycelium. A fungus (ˈfʌŋgəs is a eukaryotic Organism that is a member of the kingdom Fungi (ˈfʌndʒaɪ Mycelium (plural mycelia) is the vegetative part of a Fungus, consisting of a mass of branching thread-like Hyphae The mass of hyphae is sometimes called In seaweed, thallus is sometimes also called frond. Seaweed is a loose colloquial term encompassing macroscopic Multicellular, benthic marine Algae. A frond is a large Leaf with many divisions to it and the term is typically used for the leaves of palms Ferns or Cycads A frond is
The gametophyte of some non-thallophyte plants -- clubmosses, horsetails, and ferns is termed "prothallus". In Plants and Algae that undergo Alternation of generations, a gametophyte is the multicellular structure or phase that is Haploid, containing Lycopodiopsida is a class of plants often loosely grouped as the fern allies, and includes the clubmosses Equisetum is a genus of Vascular plants that reproduce by spores rather than seeds A fern is any one of a group of about 20000 Species of Plants classified in the phylum or division Pteridophyta, also known as Filicophyta
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