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Leucodermia Appalachensis
''Leucodermia'' is a genus of lichen-forming fungi in the family Physciaceae. Taxonomy The genus was circumscribed by German lichenologist Klaus Kalb in 2015, with '' Leucodermia leucomelos'' assigned as the type species. ''Leucodermia'' includes lichens that were previously classified in genus ''Anaptychia'' section ''Polyblastidium'' series ''leucomelaenae''. The genus name combines ''leucomelaenae'' with ''Heterodermia''. Klaus included 10 species in his original circumscription of the genus; ''Leucodermia guzmaniana'' was added as a newly described species in 2019. Description Characteristics of genus ''Leucodermia'' include a thallus that is either leafy (''foliose'') to somewhat bushy (''subfruticose'') with lobes that are linear-elongate, ribbon-like, and dichotomously branched. The lobes have conspicuous, long rhizines at their margins. The thallus is loosely attached to the substrate and lacks a lower cortex. The apothecia often have pruinose discs and '' Polyblastidiu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klaus Kalb
Klaus Kalb (born 1942) is a German lichenologist and an authority on tropical lichens. Biography Klaus Kalb was born in Nuremberg in 1942 and grew up in southern Bavaria. From 1960 to 1965 he studied biology, chemistry, and geography at the University of Erlangen–Nuremberg. Kalb was greatly interested in lichens and decided to pursue a doctoral degree; his thesis work was about lichen communities in the Ötztal Alps. From 1978–1981 he was a teacher at the Colégio Visconde de Porto Seguro in São Paulo, Brazil. This position afforded him the opportunity to initiate research into tropical lichens. Kalb earned his habilitation from the University of Regensburg in 1989, becoming an associate professor with that institution. In 2014, the University of Wisconsin herbarium purchased Kalb's lichen collection of 60,000 specimens for $75,000. With the acquisition of Kalb's collection, rich in tropical and European specimens, the herbarium houses about 70% of the world's know ... [...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 is 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 Fruticose lichens are lichens composed of a shrubby or bushy thallus and a holdfast. The thallus is the vegetative body of a lichen that does not have true leaves, stems, or roots. The thallus colour is affected by the algae in the lichen, compounds created by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucodermia Lutescens
''Leucodermia'' is a genus of lichen-forming fungi in the family Physciaceae. Taxonomy The genus was circumscribed by German lichenologist Klaus Kalb in 2015, with ''Leucodermia leucomelos'' assigned as the type species. ''Leucodermia'' includes lichens that were previously classified in genus ''Anaptychia'' section ''Polyblastidium'' series ''leucomelaenae''. The genus name combines ''leucomelaenae'' with ''Heterodermia''. Klaus included 10 species in his original circumscription of the genus; ''Leucodermia guzmaniana'' was added as a newly described species in 2019. Description Characteristics of genus ''Leucodermia'' include a thallus that is either leafy (''foliose'') to somewhat bushy (''subfruticose'') with lobes that are linear-elongate, ribbon-like, and dichotomously branched. The lobes have conspicuous, long rhizines at their margins. The thallus is loosely attached to the substrate and lacks a lower cortex. The apothecia often have pruinose discs and ''Polyblastidi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucodermia Fertilis
''Leucodermia'' is a genus of lichen-forming fungi in the family Physciaceae. Taxonomy The genus was circumscribed by German lichenologist Klaus Kalb in 2015, with ''Leucodermia leucomelos'' assigned as the type species. ''Leucodermia'' includes lichens that were previously classified in genus ''Anaptychia'' section ''Polyblastidium'' series ''leucomelaenae''. The genus name combines ''leucomelaenae'' with ''Heterodermia''. Klaus included 10 species in his original circumscription of the genus; ''Leucodermia guzmaniana'' was added as a newly described species in 2019. Description Characteristics of genus ''Leucodermia'' include a thallus that is either leafy (''foliose'') to somewhat bushy (''subfruticose'') with lobes that are linear-elongate, ribbon-like, and dichotomously branched. The lobes have conspicuous, long rhizines at their margins. The thallus is loosely attached to the substrate and lacks a lower cortex. The apothecia often have pruinose discs and ''Polyblastidi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucodermia Circinalis
''Leucodermia'' is a genus of lichen-forming fungi in the family Physciaceae. Taxonomy The genus was circumscribed by German lichenologist Klaus Kalb in 2015, with ''Leucodermia leucomelos'' assigned as the type species. ''Leucodermia'' includes lichens that were previously classified in genus ''Anaptychia'' section ''Polyblastidium'' series ''leucomelaenae''. The genus name combines ''leucomelaenae'' with ''Heterodermia''. Klaus included 10 species in his original circumscription of the genus; ''Leucodermia guzmaniana'' was added as a newly described species in 2019. Description Characteristics of genus ''Leucodermia'' include a thallus that is either leafy (''foliose'') to somewhat bushy (''subfruticose'') with lobes that are linear-elongate, ribbon-like, and dichotomously branched. The lobes have conspicuous, long rhizines at their margins. The thallus is loosely attached to the substrate and lacks a lower cortex. The apothecia often have pruinose discs and ''Polyblastidi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucodermia Ciliatomarginata
''Leucodermia'' is a genus of lichen-forming fungi in the family Physciaceae. Taxonomy The genus was circumscribed by German lichenologist Klaus Kalb in 2015, with ''Leucodermia leucomelos'' assigned as the type species. ''Leucodermia'' includes lichens that were previously classified in genus ''Anaptychia'' section ''Polyblastidium'' series ''leucomelaenae''. The genus name combines ''leucomelaenae'' with ''Heterodermia''. Klaus included 10 species in his original circumscription of the genus; ''Leucodermia guzmaniana'' was added as a newly described species in 2019. Description Characteristics of genus ''Leucodermia'' include a thallus that is either leafy (''foliose'') to somewhat bushy (''subfruticose'') with lobes that are linear-elongate, ribbon-like, and dichotomously branched. The lobes have conspicuous, long rhizines at their margins. The thallus is loosely attached to the substrate and lacks a lower cortex. The apothecia often have pruinose discs and ''Polyblastidi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucodermia Boryi
''Leucodermia'' is a genus of lichen-forming fungi in the family Physciaceae. Taxonomy The genus was circumscribed by German lichenologist Klaus Kalb in 2015, with ''Leucodermia leucomelos'' assigned as the type species. ''Leucodermia'' includes lichens that were previously classified in genus ''Anaptychia'' section ''Polyblastidium'' series ''leucomelaenae''. The genus name combines ''leucomelaenae'' with ''Heterodermia''. Klaus included 10 species in his original circumscription of the genus; ''Leucodermia guzmaniana'' was added as a newly described species in 2019. Description Characteristics of genus ''Leucodermia'' include a thallus that is either leafy (''foliose'') to somewhat bushy (''subfruticose'') with lobes that are linear-elongate, ribbon-like, and dichotomously branched. The lobes have conspicuous, long rhizines at their margins. The thallus is loosely attached to the substrate and lacks a lower cortex. The apothecia often have pruinose discs and ''Polyblastidi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucodermia Borphyllidiata
''Leucodermia'' is a genus of lichen-forming fungi in the family Physciaceae. Taxonomy The genus was circumscribed by German lichenologist Klaus Kalb in 2015, with '' Leucodermia leucomelos'' assigned as the type species. ''Leucodermia'' includes lichens that were previously classified in genus ''Anaptychia'' section ''Polyblastidium'' series ''leucomelaenae''. The genus name combines ''leucomelaenae'' with ''Heterodermia''. Klaus included 10 species in his original circumscription of the genus; '' Leucodermia guzmaniana'' was added as a newly described species in 2019. Description Characteristics of genus ''Leucodermia'' include a thallus that is either leafy (''foliose'') to somewhat bushy (''subfruticose'') with lobes that are linear-elongate, ribbon-like, and dichotomously branched. The lobes have conspicuous, long rhizines at their margins. The thallus is loosely attached to the substrate and lacks a lower cortex. The apothecia often have pruinose discs and '' Polyblastidi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucodermia Arsenei
''Leucodermia'' is a genus of lichen-forming fungi in the family Physciaceae. Taxonomy The genus was circumscribed by German lichenologist Klaus Kalb in 2015, with '' Leucodermia leucomelos'' assigned as the type species. ''Leucodermia'' includes lichens that were previously classified in genus ''Anaptychia'' section ''Polyblastidium'' series ''leucomelaenae''. The genus name combines ''leucomelaenae'' with ''Heterodermia''. Klaus included 10 species in his original circumscription of the genus; ''Leucodermia guzmaniana'' was added as a newly described species in 2019. Description Characteristics of genus ''Leucodermia'' include a thallus that is either leafy (''foliose'') to somewhat bushy (''subfruticose'') with lobes that are linear-elongate, ribbon-like, and dichotomously branched. The lobes have conspicuous, long rhizines at their margins. The thallus is loosely attached to the substrate and lacks a lower cortex. The apothecia often have pruinose discs and '' Polyblastidiu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucodermia Appalachensis
''Leucodermia'' is a genus of lichen-forming fungi in the family Physciaceae. Taxonomy The genus was circumscribed by German lichenologist Klaus Kalb in 2015, with '' Leucodermia leucomelos'' assigned as the type species. ''Leucodermia'' includes lichens that were previously classified in genus ''Anaptychia'' section ''Polyblastidium'' series ''leucomelaenae''. The genus name combines ''leucomelaenae'' with ''Heterodermia''. Klaus included 10 species in his original circumscription of the genus; ''Leucodermia guzmaniana'' was added as a newly described species in 2019. Description Characteristics of genus ''Leucodermia'' include a thallus that is either leafy (''foliose'') to somewhat bushy (''subfruticose'') with lobes that are linear-elongate, ribbon-like, and dichotomously branched. The lobes have conspicuous, long rhizines at their margins. The thallus is loosely attached to the substrate and lacks a lower cortex. The apothecia often have pruinose discs and '' Polyblastidiu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
Polyblastidium
''Polyblastidium'' is a genus of foliose lichens in the family Physciaceae. It has 18 species. The genus was circumscribed by German lichenologist Klaus Kalb in 2015, with '' Polyblastidium japonicum'' assigned as the type species. ''Polyblastidium'' is similar in morphology to ''Heterodermia'', but its lower surface is cobweb-like in structure (''arachnoid''), and its ascospores are mostly 1-septate with 1 to 3 sporoblastidia (small subsidiary cavities). It is this latter feature that is referenced in the genus name ''Polyblastidium'' (''poly'' = "many" + sporoblastidia). The genus contains several species that were formerly classified in the genus ''Anaptychia'' (section ''Polyblastidium'' series Series may refer to: People with the name * Caroline Series (born 1951), English mathematician, daughter of George Series * George Series (1920–1995), English physicist Arts, entertainment, and media Music * Series, the ordered sets used i ... ''Polyblastidium''). Species *'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
