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Ramalinaceae
The Ramalinaceae are a family of lichen-forming fungi in the order Lecanorales. First proposed by Carl Adolph Agardh in 1821, the family now comprises 63 genera and about 750 species. Ramalinaceae lichens exhibit diverse growth forms, including crustose, fruticose, squamulose, leprose, and byssoid thalli, and form symbiotic relationships primarily with green algae of the genus ''Trebouxia''. The family is characterised by pale-coloured thalli, apothecia (fruiting bodies) that are typically pale but may darken with age, and ascospores that vary in shape and septation. Members of the Ramalinaceae are found in a wide range of habitats worldwide, from coastal fog deserts to boreal, temperate, and tropical forests. Some genera, such as '' Namibialina'', '' Vermilacinia'', and '' Niebla'', are endemic to specific coastal desert regions, whilst others like '' Ramalina'' have an almost worldwide distribution. Several species within the family face conservation challenges due to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramalina
''Ramalina'' is a genus of greenish fruticose lichens that grow in the form of flattened, strap-like branches. Members of the genus are commonly called strap lichensField Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, or cartilage lichens. Apothecia are lecanorine. It is in the family Ramalinaceae and in the suborder Lecanorineae. Description The genus ''Ramalina'' consists of shrubby (fruticose) lichens that often appear tufted, ranging from erect to hanging () forms. The of the thallus, which is the body of the lichen, typically emerge from a well-defined or more spread-out holdfast—a structure that anchors the lichen to its substrate. In rare cases, these lichens can be free-living, unattached to any surface. The branches within the thallus can vary from singular to many, and their branching pattern may be either regularly forked (dichotomous) or more irregular. These branches are commonly compressed and strap-shaped, although they can occ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vermilacinia
''Vermilacinia'', a genus of lichenized fungi in the family Ramalinaceae, is a yellow-green fruticose type of lichen with about 30 species that grow on rocks, trees, and soil within the fog zone along the Pacific Coast of North America and South America.Spjut, R. W. ''Niebla'' and ''Vermilacinia'' (Ramalinaceae) from California and Baja California. Sida Miscellany 14 The genus name refers to the thallus being divided into narrow worm-like (vermis) branches (lacinia);the latter part of the name (lacinia) generally applied in descriptions and taxonomic keys such as exemplified in a key to Sonoran Desert species of ''Ramalina''. The species of ''Vermilacinia'' are classified in two subgenera: subgenus ''Cylindricaria'' and subgenus ''Vermilacinia''. Subgenus ''Cylindricaria'', which includes 10+ species (type: ''Vermilacinia corrugata'' Spjut) that grow mostly on shrubs, is distinguished by a thin membranous pliable cortex (an outer skin-like layer composed of gelatinized hyphal c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Namibialina
''Namibialina'' is a fungal genus in the family Ramalinaceae. It comprises the single species ''Namibialina melanothrix'', a fruticose lichen. The genus is endemic to the coastal deserts of southwestern Africa, from southern Angola to South Africa's Cape of Good Hope, where it grows on rocks, soil, or as an epiphyte on tree bark. It is characterized by its shrubby thallus with branching patterns that often end in blackish or hair-like projections, and by distinctive longitudinal grooves formed by cartilage-like tissue. The genus was circumscription (taxonomy), circumscribed in 2020 based on molecular phylogenetic evidence showing it diverged from its sister group, sister genus ''Ramalina'' about 48 million years ago during the early Eocene. Taxonomy The genus ''Namibialina'' was circumscription (taxonomy), circumscribed in 2020 by the lichenologists Richard Sjput and Emmanuël Sérusiaux to accommodate species previously classified in other genera of the Ramalinaceae. Phylogene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niebla (lichen)
''Niebla'', also known as the sea-fog lichens, is a genus of yellow-green fruticose lichens that grow on rocks, trees, and shrubs within the fog zone of coastal North America,Brodo, I. M., S. D. Sharnoff, and S. Sharnoff. 2001. Lichens of North America. Yale University Press: New Haven. or more narrowly defined to occur on rocks and soil along the Pacific Coast from Mendocino County in California south to Baja California Sur.Spjut, R. W. 1996. ''Niebla'' and ''Vermilacinia'' (Ramalinaceae) from California and Baja California. Sida Miscellany 14, pp. 1-208. Botanical Research Institute of Texas, Inc., Fort Worth. Taxonomy The genus name is a substitute nameRundel, P.W. and P.A. Bowler, 1978. ''Niebla'', a new generic name for ''Desmazieria'' (Ramalinaceae). Mycotaxon 6: 497–499 for ''Desmazieria'', a homonym (biology), homonym created by Camille Montagne in 1852 who recognized only one species in the genus (''D. homalea''); however, the name ''Desmazeria'', although not spelle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lecanorales
The Lecanorales are an order of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. The order contains 26 families, 269 genera, and 5695 species. Families Suborder Lecanorineae * Biatorellaceae M. Choisy ex Hafellner & Casares-Porcel, 1992 * Brigantiaeaceae Hafellner & Bellem., 1982 * Bruceomycetaceae Rikkinen & A.R.Schmidt in Rikkinen et al., * Byssolomataceae Zahlbr. 1926 * Carbonicolaceae Bendiksby & Timdal (2013) * Catillariaceae Hafellner, 1984 * Cetradoniaceae J.C. Wei & Ahti 2002 * Cladoniaceae Zenker, J.C. 1827–1829 * Dactylosporaceae Bellem. & Hafellner, 1982 * Gypsoplacaceae Timdal, E. 1990 * Haematommataceae Hafellner, 1984 * Lecanoraceae Fée, A.L.A. 1824 * Malmideaceae Kalb, K., Rivas Plata, E., Lücking, R. & Lumbsch, H.T. 2011 * Pachyascaceae Poelt ex P.M.Kirk, P.F.Cannon & J.C.David, 2001 * Parmeliaceae The Parmeliaceae is a large and diverse family of Lecanoromycetes. With over 2700 species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramalina Fraxinea
''Ramalina fraxinea'', the cartilage lichen, is a fruticose lichen with erect or pendulous thalli and branches that are flattened. Colour varies from pale green though yellow-grey to white-grey; apothecia are frequent and soralia may also be present. Habitat and distribution This lichen is widespread in the United Kingdom, being found on tree bark. In north-eastern England and eastern Scotland it is often well developed, growing up to 12 cm with thongs of up to 2 cm wide. In less favourable areas it is much smaller. The species has declined markedly since the mid 20th century and is now rare or absent in many UK areas. Its sensitivity to air pollution and fertilizer enrichment may be reasons for the decline. It is mainly found on the bark of ''Acer'', ''Fraxinus'', ''Populus'', ''Tilia'' and ''Ulmus''; it has been found growing on ''Rhododendron'' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fruticose Lichen
A fruticose lichen is a form of lichen fungi that is characterized by a coral-like shrubby or bushy growth structure. It is formed from a symbiotic relationship of a photobiont such as green algae or less commonly cyanobacteria and one, two or more mycobionts. Fruticose lichens are not a monophyletic and holophyletic lineage, but are a form encountered in many classes. Fruticose lichens have a complex vegetation structure, and are characterized by an ascending, bushy or pendulous appearance. As with other lichens, many fruticose lichens can endure high degrees of desiccation. They grow slowly and often occur in habitats such as on tree barks, on rock surfaces and on soils in the Arctic and mountain regions. Characteristics Characteristic of fruticose lichen is the shape of the thallus. Like crustose lichen, fruticose lichen is composed of a holdfast which will act as an anchor for the lichen to grow in rock fissures, over loose sand or soil. Growth and structure Fruticose or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fog Desert
A fog desert is a type of desert where fog drip supplies the majority of moisture needed by animal and plant life. Examples of fog deserts include the Atacama Desert of coastal Chile and Peru; the Baja California desert of Mexico; the Namib Desert in Namibia; the Arabian Peninsula coastal fog desert; and a manmade instance within Biosphere 2, an artificial closed ecosphere in Arizona. Formation Humidity in foggy air is above 95%. One way for fog to form in Desert, deserts is through the interaction of hot humid air (such as is formed above warm bodies of water) with a cooler object, such as a mountain. When warm air hits cooler objects, fog is generated by the condensation of vaporized water. Another way fog forms in deserts occurs when a desert is close to an ocean which has a cold current. When air is heated over desert land and blows towards the cool water in the ocean, it condenses and fog is formed. The cool fog is then blown inland by the ocean breeze. Fog is mainly for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
