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Platismatia
''Platismatia'' is genus of medium to large foliose lichens in the family Parmeliaceae. The genus is widespread and contains 11 species. They resemble many other genera of foliose lichens in the Parmeliaceae, particularly ''Parmotrema'', ''Cetrelia'', and ''Asahinea''. Most species are found in forests on the trunks and branches of conifer trees, although some species grow on rocks.Brodo, I. M., S. D. Sharnoff, and S. Sharnoff. 2001. Lichens of North America. Yale University Press: New Haven. Species of ''Platismatia'' can be used to produce an orange-brown, yellow-brown, or brown dye,Brough, S. G. 1984. Dye characteristics of British Columbia forest lichens. Syesis 17: 81-94. and at least one species was traditionally used to dye wool in Europe.Johannes Cornelius Theodorus Uphof, Uphof, J. C. T. 1959. Dictionary of Economic Plants. Hafner Publishing Co.: New York. Taxonomy The genus ''Platismatia'' was historically classified within ''Cetraria'' by Erik Acharius in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platismatia Glauca
''Platismatia glauca'' is a common and widespread species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. This distinctive lichen forms pale to dull grey patches measuring 1–15 centimetres across, with wavy, irregularly indented that often have reproductive structures (apothecia) along their upturned margins. The species is known for its adaptability to varying nitrogen levels in the environment and contains several unique secondary metabolites that have been subjects of scientific research. In 2024, scientists completed a high-quality genome sequence of ''P. glauca'' as part of the Darwin Tree of Life Project, providing valuable resources for future studies of this widely distributed lichen that can be found throughout Africa, Asia, Europe, and North America. Taxonomy It was first formally described by Carl Linnaeus in his 1753 work ''Species Plantarum''. William and Chicita Culberson transferred it to the genus ''Platismatia'' in 1968. A high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platismatia Lacunosa
''Platismatia lacunosa'' is a species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. Known predominantly from western North America, it reproduces primarily through sexual means, which is uncommon in the genus. The species is distinguished by its ridged surface and large, folded apothecia (fruiting bodies). Taxonomy ''Platismatia lacunosa'' was first formally described in 1803 by Erik Acharius as a member of the genus '' Cetraria''. William and Chicita Culberson transferred it to the genus ''Platismatia'' in 1968. Phylogenetic analysis has shown ''P. lacunosa'' to be a distinct, monophyletic species within ''Platismatia''. Ancestral state reconstruction suggests that ''P. lacunosa'', a sexually reproducing species, likely evolved from an asexual ancestor. Description The upper thallus surface of ''P. lacunosa'' is greenish gray, gray to almost white, with margins that may become blackened. It is characterized by strong reticulations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platismatia Herrei
''Platismatia herrei'' is a species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. It was first formally described as a species of '' Cetraria'' in 1968 by lichenologist Henry Imshaug. William and Chicita Culberson transferred it to the genus ''Platismatia'' in 1968. The lichen is found in western North America, ranging from southern Alaska to central California. It is distinguished from other members of its genus by the isidia that fringe the edges of its linear lobes; the Culbersons described it as "one of the most beautiful and intricately formed species in the genus". ''Platismatia herrei'' reproduces primarily asexually through the production of isidia. Its thallus is whitish or pale, often splotched with black, with flat to curled inwards lobes that are narrow and linear. The upper surface is smooth to very minutely pitted or wrinkled. The lower surface is white or pale with discrete and delimited black zones. It has few black rhizines, prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platismatia Erosa
''Platismatia erosa'' is a species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. Found in Asia, it was formally described as a new species in 1968 by William and Chicita Culberson. The species epithet ''erosa'' refers to the "eroded" quality of the reticulations on the upper thallus surface. ''Platismatia erosa'' reproduces primarily asexually through the production of isidia, which are small outgrowths on the thallus surface. The lichen's upper thallus is light tan to ashy gray, becoming brown at the lobe margins, and has a broadly reticulately ridged and veined surface with pseudocyphellae (small pores). Its lower surface is black with a light brown marginal zone and is (dotted). The lichen has few black rhizines, which are to and confined to older parts of the thallus. The lichen has been recorded from Japan, Taiwan, Java, Vietnam, Nepal, the Philippines, and Sikkim, and Tibet. Chemical analysis of the lichen (using thin-layer chromatography) r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetrelia
''Cetrelia'' is a genus of leafy lichens in the large family Parmeliaceae. They are commonly known as sea-storm lichens, alluding to the wavy appearance of their lobes. The name of the genus, circumscribed in 1968 by the husband and wife lichenologists William and Chicita Culberson, alludes to the former placement of these species in the genera '' Cetraria'' and '' Parmelia''. The main characteristics of the genus are the broad, rounded lobes of the greyish-green lichen body, and the presence of tiny pores in the outer surface (the cortex) that enable gas exchange. The lower surface of the lichen is brown to black with few root-like rhizines to act as holdfasts, resulting in a fairly loose attachment to the surface the lichen is on. Sexual reproductive structures are usually not present, so the physical characteristics used to distinguish between ''Cetrelia'' species include the presence or absence of asexual reproductive structures such as isidia, soredia, and lobules ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platismatia Interrupta
''Platismatia interrupta'' is a species of foliose lichen in the family Parmeliaceae. Found in southern Russian Far East, and Japan, it was formally described as a new species in 1968 by William and Chicita Culberson. The species epithet ''interrupta'' refers to the indistinct and discontinuous reticulation of the upper thallus surface. The lichen of one of the most common foliose macrolichens in Japan, particularly at high elevations, where it grows on tree trunks and on boulders. The authors called it the "Far Eastern equivalent" of the common and widespread ''Platismatia glauca ''Platismatia glauca'' is a common and widespread species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. This distinctive lichen forms pale to dull grey patches measuring 1–15 centimetres across, with wavy, irregular ...'', which is absent in Asia. References Parmeliaceae Lichen species Lichens described in 1968 Lichens of Japan Lichens of the Russian Far East ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platismatia Formosana
''Platismatia formosana'' is a species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. Found in the mountains of Taiwan, it was first formally described as a species of '' Cetraria'' in 1933 by Alexander Zahlbruckner. William and Chicita Culberson transferred it to the genus ''Platismatia'' in 1968. The species epithet ''formosana'' refers to its distribution, as "Formosa" is the name formerly used in Western literature to refer to Taiwan. It contains the lichen products atranorin, caperatic acid, and an unidentified yellow pigment A pigment is a powder used to add or alter color or change visual appearance. Pigments are completely or nearly solubility, insoluble and reactivity (chemistry), chemically unreactive in water or another medium; in contrast, dyes are colored sub .... References Parmeliaceae Lichen species Lichens described in 1933 Taxa named by Alexander Zahlbruckner Lichens of Eastern Asia {{Parmeliaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platismatia Regenerans
''Platismatia regenerans'' is a species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. Found in Borneo, it was formally described as a new species in 1968 by William and Chicita Culberson. The type specimen was collected by Mason Hale from the Kinabalu National Park in Sabah, at an elevation of . The species epithet refers to the "regenerative lobulae" that occur on older parts of the thallus Thallus (: thalli), from Latinized Greek (), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. A thallus usually names the entir .... References Parmeliaceae Lichen species Lichens described in 1968 Taxa named by William Louis Culberson Taxa named by Chicita F. Culberson Lichens of Malesia {{Parmeliaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetraria
''Cetraria'' is a genus of fruticose lichens that associate with green algae as photobionts. Most species are found at high latitudes, occurring on sand or heath, and are characterised by their "strap-like" form with spiny edges. The lobes can range from narrow and linear to broader and flattened, often forming loose or densely packed cushions. Their distinctive spiny margins serve both a defensive role and aid in vegetative reproduction through fragmentation. The genus was created by Erik Acharius in 1803 and belongs to the large family Parmeliaceae. While originally a species-rich genus, taxonomic revisions since the 1960s have split many species into new genera, though the exact circumscription remains debated among lichenologists. Several ''Cetraria'' species have cultural and economic importance, particularly '' C. islandica'' (Iceland moss), which has been widely used in European traditional medicine for treating digestive and respiratory ailments. This species was a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parmeliaceae
The Parmeliaceae is a large and diverse family of Lecanoromycetes. With over 2700 species in 71 genera, it is the largest family of lichen-forming fungi. The most speciose genera in the family are the well-known groups: '' Xanthoparmelia'' ( 822 species), '' Usnea'' (355 species), '' Parmotrema'' ( 255 species), and '' Hypotrachyna'' (262 species). Nearly all members of the family have a symbiotic association with a green alga (most often ''Trebouxia'' spp., but ''Asterochloris'' spp. are known to associate with some species).Miadlikowska, J. ''et al.'' (2006). New insights into classification and evolution of the Lecanoromycetes (Pezizomycotina, Ascomycota) from phylogenetic analyses of three ribosomal RNA- and two protein-coding genes. ''Mycologia'' 98: 1088-1103. http://www.mycologia.org/cgi/reprint/98/6/1088.pdf The majority of Parmeliaceae species have a foliose, fruticose, or subfruticose growth form. The morphological diversity and complexity exhibited by this group i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soredia
Soredia are common reproduction, reproductive structures of lichens. Lichens asexual reproduction, reproduce asexually by employing simple fragmentation and production of soredia and isidia. Soredia are powdery propagules composed of fungus, fungal hyphae wrapped around cyanobacteria or green algae. These can be either scattered diffusely across the surface of the lichen's thallus, or produced in localized structures called soralia. Fungal hyphae make up the basic body structure of a lichen. The soredia are released through openings in the upper cortex of the lichen structure. After their release, the soredia disperse to establish the lichen in a new location. References Fungal morphology and anatomy Lichenology {{lichen-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
