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Toensbergia
''Toensbergia'' is a genus of lichen-forming fungi in the family Sporastatiaceae. The genus was circumscription (taxonomy), circumscribed by Mika Bendiksby and Einar Timdal in 2013. The genus name honours Norwegian lichenologist Tor Tønsberg, "in appreciation of his important work on sorediate, corticolous lichens". The type species is ''Toensbergia leucococca'', which was formerly classified in genus ''Hypocenomyce'', presumably due to its resemblance (morphology (biology), morphological, chemical, and ecological) to ''Hypocenomyce xanthococca''. Description ''Toensbergia'' species are characterised by having a thallus comprising tiny, adnate, crenulate (with a finely scalloped edge), grayish-white areolae. The lichens lack a hypothallus (a growth of undifferentiated fungal mycelium below the thallus), and contain the secondary metabolite, secondary chemical alectorialic acid. Species *''Toensbergia blastidiata'' – Alaska *''Toensbergia geminipara'' *''Toensbergia leucococc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toensbergia Leucococca
''Toensbergia'' is a genus of lichen-forming fungi in the family Sporastatiaceae. The genus was circumscribed by Mika Bendiksby and Einar Timdal in 2013. The genus name honours Norwegian lichenologist Tor Tønsberg, "in appreciation of his important work on sorediate, corticolous lichens". The type species is '' Toensbergia leucococca'', which was formerly classified in genus ''Hypocenomyce'', presumably due to its resemblance ( morphological, chemical, and ecological) to '' Hypocenomyce xanthococca''. Description ''Toensbergia'' species are characterised by having a thallus comprising tiny, adnate, crenulate (with a finely scalloped edge), grayish-white areolae. The lichens lack a hypothallus (a growth of undifferentiated fungal mycelium below the thallus), and contain the secondary chemical alectorialic acid. Species *'' Toensbergia blastidiata'' – Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sporastatiaceae
Sporastatiaceae is a small family of crustose lichens in the order Rhizocarpales. It contains two genera, '' Sporastatia'' and '' Toensbergia'', with a total of five species. Sporastatiaceae was circumscribed in 2013 by Mika Bendiksby and Ernst Timdal. Description Characteristics of species in family Sporastatiaceae include a crustose (crust-like) thallus with unicellular green algae as the photobiont partner, and lacking cephalodia. The apothecia are lecideine; this means they have a black exciple and blackish disc with a dark epihymenium. The ascus is narrowly club-shaped (clavate), containing several spores; it has a well-developed, deeply amyloid tholus (a thickened inner part of the apex). The ascospores are hyaline A hyaline substance is one with a glassy appearance. The word is derived from el, ὑάλινος, translit=hyálinos, lit=transparent, and el, ὕαλος, translit=hýalos, lit=crystal, glass, label=none. Histopathology Hyaline cartilage is ..., and thin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toensbergia Blastidiata
''Toensbergia blastidiata'' is a species of crustose lichen in the family Sporastatiaceae. Found in northwestern North America, it was described as a new species in 2020 by lichenologists Toby Spribille and Tor Tønsberg. The type specimen was collected in Glacier Bay National Park at the base of Marble Mountain (Alaska). Here the lichen was found growing on the bark of '' Alnus viridis'' subsp. ''crispa''. The specific epithet ''blastidiata'' refers to the "blastidiate thallus surface"; blastidia are vegetative propagules containing both mycobiont and photobiont, which are produced by yeast-like "budding". ''Toensbergia blastidiata'' is widespread in northwestern North America with a range extending from Kodiak Island south to the Olympic Mountains of Washington State. It is a corticolous lichen that has been recorded from the bark of ''Alnus viridis'' subsp. ''crispa'', '' A. incana'' subsp. ''tenuifolia'', '' A. rubra'', ''Frangula purshiana'', ''Malus fusca ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypocenomyce
''Hypocenomyce'' is a genus of lichen-forming fungi in the family Ophioparmaceae. Species in the genus grow on bark and on wood, especially on burned tree stumps and trunks in coniferous forest. ''Hypocenomyce'' lichens are widely distributed in the northern hemisphere. Taxonomy The genus was circumscribed in 1951 by French lichenologist Maurice Choisy to contain the single species '' Hypocenomyce scalaris'', a lichen that was first formally described by Erik Acharius in 1795. Choisy's original concept of the genus featured a squamulose thallus, adnate apothecia of the lecideine type (i.e., lacking algae and an amphithecium, with a black carbonized margin as in the genus ''Lecidea'') and pycnoconidia that are short, straight, and cylindrical. Norwegian lichenologist Einer Timdal revised the genus in 1984, describing two new species to bring the total ''Hypocenomyce '' species up to ten. Since then, two new species have been described, and several have been transferred to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secondary Metabolite
Secondary metabolites, also called specialised metabolites, toxins, secondary products, or natural products, are organic compounds produced by any lifeform, e.g. bacteria, fungi, animals, or plants, which are not directly involved in the normal growth, development, or reproduction of the organism. Instead, they generally mediate ecological interactions, which may produce a selective advantage for the organism by increasing its survivability or fecundity. Specific secondary metabolites are often restricted to a narrow set of species within a phylogenetic group. Secondary metabolites often play an important role in plant defense against herbivory and other interspecies defenses. Humans use secondary metabolites as medicines, flavourings, pigments, and recreational drugs. The term secondary metabolite was first coined by Albrecht Kossel, a 1910 Nobel Prize laureate for medicine and physiology in 1910. 30 years later a Polish botanist Friedrich Czapek described secondary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichen Genera
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 plants. They may have tiny, leafless branches ( fruticose); flat leaf-like structures ( foliose); grow crust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lecanoromycetes Genera
Lecanoromycetes is the largest class of lichenized fungi. It belongs to the subphylum Pezizomycotina in the phylum Ascomycota. The asci (spore-bearing cells) of the Lecanoromycetes most often release spores by rostrate dehiscence. Genera of uncertain placement The are several genera in the Lecanoromycetes that have not been placed into any order or family. These are: *''Argopsis'' – 1 sp. *''Ascographa'' - 1 sp. *'' Bartlettiella'' – 1 sp. *'' Bouvetiella'' – 1 sp. *'' Buelliastrum'' – 1 sp. *'' Haploloma'' – 1 sp. *'' Hosseusia'' – 3 spp. *'' Korfiomyces'' – 1 sp. *'' Maronella'' – 1 sp. *'' Notolecidea'' – 1 sp. *'' Petractis'' – 3 spp. *'' Piccolia'' – 10 spp. *'' Ravenelula'' – 2 spp. *'' Robincola'' – 1 sp. *''Roburnia ''Roburnia'' is a genus of fungi in the Helotiales order. The relationship of this taxon to other taxa within the order (biology), order is unknown (''incertae sedis''), and it has not yet been placed with certainty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostropales
The Ostropales are an order of fungi in the class Lecanoromycetes. The order was circumscribed by Swedish botanist John Axel Nannfeldt in 1932. The order contains 4 families and 46 genera, including 6 genera of uncertain familial placement. Families and genera *Odontotremataceae ::'' Claviradulomyces'' – 2 spp. ::''Coccomycetella'' – 2 spp. ::''Odontotrema'' – 7 spp. ::'' Odontura'' – 1 sp. ::'' Paschelkiella'' – 1 sp. ::''Potriphila'' – 3 spp. ::''Rogellia'' – 2 spp. ::''Stromatothecia'' – 1 sp. ::''Tryblis'' – 2 spp. ::''Xerotrema'' – 2 spp. * Phaneromycetaceae ::''Phaneromyces'' – 2 spp. *Spirographaceae ::''Spirographa'' – 5 spp. *Stictidaceae ::''Absconditella'' – 12 spp. ::''Acarosporina'' – 5 spp. ::''Biostictis'' – 5 spp. ::''Carestiella'' – 2 sp. ::''Conotremopsis'' – 1 sp. ::''Cryptodiscus'' – 15 spp. * ::''Cyanodermella'' – 2 spp. ::''Delpontia'' – 1 sp. ::'' Fitzroyomyces'' – 1 sp. ::'' Geisleria'' – 4 spp. ::'' Glom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., it borders the Canadian province of British Columbia and the Yukon territory to the east; it also shares a maritime border with the Russian Federation's Chukotka Autonomous Okrug to the west, just across the Bering Strait. To the north are the Chukchi and Beaufort Seas of the Arctic Ocean, while the Pacific Ocean lies to the south and southwest. Alaska is by far the largest U.S. state by area, comprising more total area than the next three largest states ( Texas, California, and Montana) combined. It represents the seventh-largest subnational division in the world. It is the third-least populous and the most sparsely populated state, but by far the continent's most populous territory located mostly north of the 60th paralle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
