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Lepidocollema
''Lepidocollema'' is a genus of lichens in the family Pannariaceae. It was circumscribed in 1890 to contain a single Brazilian species that has not been collected since. In 2016, the entire family was revised and updated, resulting in the expansion of ''Lepidocollema'' to 24 tropical species. Taxonomay ''Lepidocollema'' was originally circumscribed in 1890 by Finnish lichenologist Edvard August Vainio with only the type species, '' L. carassense''. This lichen is a gelatinous ''Parmeliella''-like species that has a photobiont from the genus ''Nostoc''. It has only been collected once from Brazil. The family Pannariaceae was revised in 2014 with the help of molecular phylogenetics. As a result, the genus was accepted and 23 tropical species were transferred into it, mostly from the genus ''Parmeliella''. Phylogenetically, ''Lepidocollema'' is sister to '' Physma''. Description ''Lepidocollema'' is characterised by the formation of large, flat rosettes on a thick layer of rh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidocollema Brisbanense
''Lepidocollema'' is a genus of lichens in the family Pannariaceae. It was circumscribed in 1890 to contain a single Brazilian species that has not been collected since. In 2016, the entire family was revised and updated, resulting in the expansion of ''Lepidocollema'' to 24 tropical species. Taxonomay ''Lepidocollema'' was originally circumscribed in 1890 by Finnish lichenologist Edvard August Vainio with only the type species, '' L. carassense''. This lichen is a gelatinous ''Parmeliella''-like species that has a photobiont from the genus ''Nostoc''. It has only been collected once from Brazil. The family Pannariaceae was revised in 2014 with the help of molecular phylogenetics. As a result, the genus was accepted and 23 tropical species were transferred into it, mostly from the genus ''Parmeliella''. Phylogenetically, ''Lepidocollema'' is sister to '' Physma''. Description ''Lepidocollema'' is characterised by the formation of large, flat rosettes on a thick layer of rh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidocollema Borbonicum
''Lepidocollema'' is a genus of lichens in the family Pannariaceae. It was circumscribed in 1890 to contain a single Brazilian species that has not been collected since. In 2016, the entire family was revised and updated, resulting in the expansion of ''Lepidocollema'' to 24 tropical species. Taxonomay ''Lepidocollema'' was originally circumscribed in 1890 by Finnish lichenologist Edvard August Vainio with only the type species, '' L. carassense''. This lichen is a gelatinous ''Parmeliella''-like species that has a photobiont from the genus ''Nostoc''. It has only been collected once from Brazil. The family Pannariaceae was revised in 2014 with the help of molecular phylogenetics. As a result, the genus was accepted and 23 tropical species were transferred into it, mostly from the genus ''Parmeliella''. Phylogenetically, ''Lepidocollema'' is sister to '' Physma''. Description ''Lepidocollema'' is characterised by the formation of large, flat rosettes on a thick layer of rh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidocollema Carassense
''Lepidocollema'' is a genus of lichens in the family Pannariaceae. It was circumscribed in 1890 to contain a single Brazilian species that has not been collected since. In 2016, the entire family was revised and updated, resulting in the expansion of ''Lepidocollema'' to 24 tropical species. Taxonomay ''Lepidocollema'' was originally circumscribed in 1890 by Finnish lichenologist Edvard August Vainio with only the type species, '' L. carassense''. This lichen is a gelatinous ''Parmeliella''-like species that has a photobiont from the genus ''Nostoc''. It has only been collected once from Brazil. The family Pannariaceae was revised in 2014 with the help of molecular phylogenetics. As a result, the genus was accepted and 23 tropical species were transferred into it, mostly from the genus ''Parmeliella''. Phylogenetically, ''Lepidocollema'' is sister to '' Physma''. Description ''Lepidocollema'' is characterised by the formation of large, flat rosettes on a thick layer of rh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidocollema Allochroum
''Lepidocollema'' is a genus of lichens in the family Pannariaceae. It was circumscribed in 1890 to contain a single Brazilian species that has not been collected since. In 2016, the entire family was revised and updated, resulting in the expansion of ''Lepidocollema'' to 24 tropical species. Taxonomay ''Lepidocollema'' was originally circumscribed in 1890 by Finnish lichenologist Edvard August Vainio with only the type species, '' L. carassense''. This lichen is a gelatinous ''Parmeliella''-like species that has a photobiont from the genus ''Nostoc''. It has only been collected once from Brazil. The family Pannariaceae was revised in 2014 with the help of molecular phylogenetics. As a result, the genus was accepted and 23 tropical species were transferred into it, mostly from the genus ''Parmeliella''. Phylogenetically, ''Lepidocollema'' is sister to '' Physma''. Description ''Lepidocollema'' is characterised by the formation of large, flat rosettes on a thick layer of rh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidocollema Adpressum
''Lepidocollema'' is a genus of lichens in the family Pannariaceae. It was circumscribed in 1890 to contain a single Brazilian species that has not been collected since. In 2016, the entire family was revised and updated, resulting in the expansion of ''Lepidocollema'' to 24 tropical species. Taxonomay ''Lepidocollema'' was originally circumscribed in 1890 by Finnish lichenologist Edvard August Vainio with only the type species, '' L. carassense''. This lichen is a gelatinous ''Parmeliella''-like species that has a photobiont from the genus ''Nostoc''. It has only been collected once from Brazil. The family Pannariaceae was revised in 2014 with the help of molecular phylogenetics. As a result, the genus was accepted and 23 tropical species were transferred into it, mostly from the genus ''Parmeliella''. Phylogenetically, ''Lepidocollema'' is sister to '' Physma''. Description ''Lepidocollema'' is characterised by the formation of large, flat rosettes on a thick layer of rh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pannariaceae
The Pannariaceae are a family of lichens in the order Peltigerales (suborder Collematineae). Species from this family have a widespread distribution, but are especially prevalent in southern temperate regions. Genera According to a recent (2020) estimate, the family contains 27 genera and about 360 species. The following list indicates the genus name, the taxonomic authority, year of publication, and the number of species: *'' Atrophysma'' – 1 sp. *'' Austrella'' – 3 spp. *'' Austroparmeliella'' – 5 spp. *''Degelia'' – 16 spp. *'' Erioderma'' – 32 spp. *'' Fuscoderma'' – 5 spp. *''Fuscopannaria'' – 58 spp. *'' Kroswia'' – 4 spp. *'' Gibbosporina'' – 13 spp. *'' Homothecium'' – 4 spp. *'' Joergensenia'' – 1 sp. *'' Leciophysma'' – 2 spp. *'' Leightoniella'' – 1 sp. *'' Leioderma'' – 7 spp. *'' Lepidocollema'' – 22 spp. *'' Leptogidium'' – 3 spp. *''Nebularia'' – 2 spp. *'' Nevesia'' – 1 sp. *''Pannaria'' – ca. 40 spp. *''P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosette (botany)
In botany, a rosette is a circular arrangement of leaves or of structures resembling leaves. In flowering plants, rosettes usually sit near the soil. Their structure is an example of a modified stem in which the internode gaps between the leaves do not expand, so that all the leaves remain clustered tightly together and at a similar height. Some insects induce the development of galls that are leafy rosettes. In bryophytes and algae, a rosette results from the repeated branching of the thallus as the plant grows, resulting in a circular outline. Taxonomies Many plant families have varieties with rosette morphology; they are particularly common in Asteraceae (such as dandelions), Brassicaceae (such as cabbage), and Bromeliaceae. The fern '' Blechnum fluviatile'' or New Zealand Water Fern (''kiwikiwi'') is a rosette plant. Function in flowering plants Often, rosettes form in perennial plants whose upper foliage dies back with the remaining vegetation protecting the plant. Ano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alga
Algae (; singular alga ) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular microalgae, such as ''Chlorella,'' ''Prototheca'' and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow up to in length. Most are aquatic and autotrophic (they generate food internally) and lack many of the distinct cell and tissue types, such as stomata, xylem and phloem that are found in land plants. The largest and most complex marine algae are called seaweeds, while the most complex freshwater forms are the ''Charophyta'', a division of green algae which includes, for example, ''Spirogyra'' and stoneworts. No definition of algae is generally accepted. One definition is that algae "have chlorophyll ''a'' as their primary photosynthetic pigment and lack a sterile covering of cells around t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypha
A hypha (; ) is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium. Structure A hypha consists of one or more cells surrounded by a tubular cell wall. In most fungi, hyphae are divided into cells by internal cross-walls called "septa" (singular septum). Septa are usually perforated by pores large enough for ribosomes, mitochondria, and sometimes nuclei to flow between cells. The major structural polymer in fungal cell walls is typically chitin, in contrast to plants and oomycetes that have cellulosic cell walls. Some fungi have aseptate hyphae, meaning their hyphae are not partitioned by septa. Hyphae have an average diameter of 4–6 µm. Growth Hyphae grow at their tips. During tip growth, cell walls are extended by the external assembly and polymerization of cell wall components, and the internal production of new cell membrane. The S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mycobiont
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not s. They may have tiny, leafless branches (); flat leaf-like structures ( |
Ascospore
An ascus (; ) is the sexual spore-bearing cell produced in ascomycete fungi. Each ascus usually contains eight ascospores (or octad), produced by meiosis followed, in most species, by a mitotic cell division. However, asci in some genera or species can occur in numbers of one (e.g. ''Monosporascus cannonballus''), two, four, or multiples of four. In a few cases, the ascospores can bud off conidia that may fill the asci (e.g. ''Tympanis'') with hundreds of conidia, or the ascospores may fragment, e.g. some ''Cordyceps'', also filling the asci with smaller cells. Ascospores are nonmotile, usually single celled, but not infrequently may be coenocytic (lacking a septum), and in some cases coenocytic in multiple planes. Mitotic divisions within the developing spores populate each resulting cell in septate ascospores with nuclei. The term ocular chamber, or oculus, refers to the epiplasm (the portion of cytoplasm not used in ascospore formation) that is surrounded by the "bourrelet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
