Alexander Segger George is a Western Australian botanist. He is the authority on the plant genera Banksia and Dryandra. The "bizarre" Restionaceae genus Alexgeorgea was named in his honour in 1976.
Cratiria is a genus of lichenized fungi in the family Caliciaceae. The genus has a widespread distribution, especially in tropical regions, and contains about 20 species. The genus was circumscribed by Austrian lichenologist Bernhard Marbach in 2000, with Cratiria lauri-cassiae assigned as the type species.
Australiaena is a genus of lichenized fungi in the family Caliciaceae. This is a monotypic genus, containing the single species Australiaena streimannii. The genus and the species were formally described in 1997 by Mario Matzer, Helmut Mayrhofer and John Elix.
Amandinea is a genus of lichenized fungi in the family Caliciaceae. Genetic studies indicates that the genus Amandinea and Buellia are the same, although this is not widely accepted.
The Caliciaceae are a family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. Although the family has had its classification changed several times throughout its taxonomic history, the use of modern molecular phylogenetic methods have helped to establish its current placement in the order Caliciales. Caliciaceae contains 36 genera and about 600 species. The largest genus is Buellia, with around 300 species; there are more than a dozen genera that contain only a single species.
Mycoblastus is a genus of crustose lichens in the family Tephromelataceae. Members of the genus are commonly called blood lichens.
Buellia asterella, commonly referred to as the starry breck lichen, is a rare, black and white lichen in the family Caliciaceae. Once found all across the central European grasslands, it was described as new to science in 1974. Today, it is classified by the IUCN Red List as Critically Endangered and only found in select regions in Norway and Germany.
John Alan (Jack) Elix emeritus professor in chemistry at the Australian National University, is an organic chemist who has contributed in many fields: lichenology, lichen chemotaxonomy, plant physiology and biodiversity and natural product chemistry. He has authored 2282 species names, and 67 genera in the field of mycology.
Sculptolumina is a genus of corticolous lichens in the family Caliciaceae. The genus was circumscribed by Bernhard Marbach in 2000, with Sculptolumina japonica designated as the type species.
Amandinea decedens is a crustose lichen in the family Caliciaceae, first described as Lecidea decedens by Finnish botanist William Nylander in 1869. It was assigned (invalidly) the name, Amandinea decedens, in 2002 by Juliane Blaha and Helmut Mayrhofer. The name was validly published in 2016 by Blaha, Mayrhofer and Jack Elix
Helmut Mayrhofer is an Austrian lichenologist. He is known for his expertise on the lichen family Physciaceae and his studies of the lichen flora of the Balkan Peninsula, the Alps, and other regions.
Halecania is a genus of fungi in the family Leprocaulaceae. It has 22 species. The genus was circumscribed by Austrian lichenologist Michaela Mayrhofer in 1987, with Halecania alpivaga assigned as the type species. She created Halecania to contain species, formerly placed in Lecania, with the following characteristics: uniformly amyloid apical domes, paraphyses with dark brown apical caps, and halonate ascospores.
Buellia quarryana is a species of crustose lichen in the family Caliciaceae. Found in southeastern Australia, it was described as a new species in 2020 by lichenologists John Elix and Patrick McCarthy. The type specimen was collected from Quarry Beach in East Gippsland (Victoria), where it was found growing on siliceous rocks along the seashore. The specific epithet refers to the type locality. It has also been found on the coast of southern New South Wales.
Buellia magaliesbergensis is a species of crustose lichen in the family Caliciaceae. Found in South Africa, it was formally described as a new species in 2021 by lichenologists John Alan Elix and Helmut Mayrhofer. The type specimen was collected in the Magaliesberg Range, at an altitude of 1,720 m (5,640 ft). Here the saxicolous lichen was found growing on rocks on the ground. The species epithet refers to the type locality, which is the only location where the lichen has been documented. The results of standard chemical spot tests are: thallus K+ (yellow), P+ (yellow-orange), and C−. Buellia magaliesbergensis contains norstictic acid as a major secondary chemical, and connorstictic acid as a minor compound.
Buellia subeffigurata is a species of crustose lichen in the family Caliciaceae. Found in South Africa, it was formally described as a new species in 2021 by John Alan Elix, Helmut Mayrhofer, and Wolfgang Wetschnig. The type specimen was collected in the Knersvlakte, at an altitude of 150 m (490 ft). Here the saxicolous lichen was found growing on quartziferous rock. The species epithet refers to its subeffigurate marginal lobes. The results of standard chemical spot tests are: thallus K+ (yellow), P+ (yellow-orange), and C−. Buellia subeffigurata contains thiophanic acid as a major secondary chemical, and isoarthothelin and atranorin as minor compounds.
Ramboldia blastidiata is a species of saxicolous (rock-dwelling) and crustose lichen in the family Lecanoraceae. Found in Australia, it was formally described as a new species in 2007 by lichenologists Gintaras Kantvilas and John Elix. The type specimen was collected by the first author from the western slopes of Strzelecki Peaks on Flinders Island (Tasmania) at an altitude of 150 m (490 ft); here, in dry sclerophyll forest, it was found growing on a granite boulder. The lichen forms pale grey-green, olive-green to dull olive-brown crust-like patches up to 30 cm (12 in) wide. The authors suggest that it is widespread in temperate Australia and Tasmania, but not commonly collected. Others saxicolous lichens that it usually grows with include Ramboldia petraeoides, Lecanora farinacea, Xanthoparmelia mougeotina, and species from the genera Buellia and Rhizocarpon. The specific epithet blastidiata refers to the presence of blastidia, which are vegetative propagules that contain mycobiont and photobiont and are produced by yeast-like budding.
Buellia dijiana is a species of terricolous (ground-dwelling), crustose lichen in the family Caliciaceae. It is found in Australia.
Buellia lobata is a species of terricolous (soil-dwelling) lichen in the family Caliciaceae. Found in Australia, it was formally described as a new species in 2001 by lichenologists Ulrike Trinkaus and John Elix. The type specimen was collected in Blanchetown ; here, in a parking area after the bridge, on the east side of the Murray River, the lichen was found growing on soil. It has also been recorded from Western Australia. The lichen occurs on calcareous soil in mallee, often with other terricolous lichens including species of Endocarpon, Toninia, Eremastriella crystallifera, Fulgensia bracteata, and Psora decipiens. Secondary compounds that occur in the lichen include arthothelin and thuringione as major components, and minor amounts of 4,5-dichloronorlichexanthone and thiophanic acid. The species epithet lobata refers to the distinct lobes that comprise the thallus.
Buellia capensis is a species of crustose lichen in the family Caliciaceae. Found in South Africa, it was formally described as new species in 2021 by John Elix and Helmut Mayrhofer. The type specimen was collected south of Langebaan at an altitude ranging from 80 to 130 m ; here it was found growing on granite from a south-exposed slope. It is only known from the type collection. The contains several secondary compounds, including lichexanthone and secalonic acid A as major metabolites, and trace amounts of fumarprotocetraric acid and succinprotocetraric acid. The specific epithet capensis refers to the region of the type locality.
