Ocotea foetens, commonly called til or stinkwood is a species of tree in the family Lauraceae. It is evergreen and grows up to 40 m tall. It is a common constituent of the laurisilva forests of Madeira and the Canary Islands. Leaf fossils of this species are known from the Mio-Pleistocene of Madeira Island.
Bacidina is a genus of lichens in the family Ramalinaceae. It was circumscribed by Czech lichenologist Antonín Vězda in 1990, with Bacidina phacodes assigned as the type species. Vězda included 11 species in Bacidina, which was originally classified in the Lecideaceae. These species had previously been placed in genus Bacidia.
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 lichens or cartilage lichens. Apothecia are lecanorine.
André Aptroot is a Dutch mycologist and lichenologist.
Parmotrema aurantiacoparvum is a species of corticolous lichen in the family Parmeliaceae. Found in South America, it was described as new to science in 1992 by lichenologist Harrie Sipman. Its thallus is pale grey or slightly brownish in colour, measuring 2–4 cm (0.8–1.6 in) wide. The lichen has been collected in Colombia, Guyana, French Guiana, Venezuela, and Brazil. It grows on canopy branches and on small trees in well-lit areas of forests or clearings.
Emodomelanelia is a lichen genus in the family Parmeliaceae. It is monotypic, containing the single foliose Himalayan species Emodomelanelia masonii.
Jan Eric Ingvar Kärnefelt is a Swedish lichenologist.
Thomas Hawkes Nash III is an American lichenologist. His research is about the biology and ecology of lichens, and the effects of air pollution on plants and lichens. He is known as an authority on the family Parmeliaceae. During his long career at the Arizona State University, he helped develop the lichen herbarium into a world-class collection with over 100,000 specimens representing more than 5000 species. In 2010, the year of his retirement, he was awarded the Acharius Medal for lifetime achievements in lichenology, and the following year had a Festschrift published in his honor.
Vahliella is a genus of nine species of lichenized fungi in the order Peltigerales. It is the only member of the Vahliellaceae, a family circumscribed in 2011 to contain this genus. Vahliella was formerly placed in the family Pannariaceae until molecular phylogenetics showed that it did not belong there. Vahliella species are found in the Northern Hemisphere – mainly in North America, but also in Europe and India.
Gibbosporina elixii is a species of foliose lichen in the family Pannariaceae. It is endemic to Queensland, Australia. The lichen was described as a new species in 2016 by Arve Elvebakk, Soon Gyu Hong, and Per Magnus Jørgensen. The specific epithet honours Australian lichenologist John Alan Elix. He collected the type from Mossman Gorge National Park, where he found it growing on the base of a tree in a tropical rainforest along Mossman River. It has also been found in the Cardwell Range.
Emmanuël Sérusiaux is a Belgian lichenologist. His career, spanning more than four decades, has combined both lichenology research and political aspects of nature conservation. He spent several periods working as a researcher at the National Fund for Scientific Research and the University of Liège, the latter in which he accepted a faculty position as professor and head of the Plant Taxonomy and Conservation Biology unit. Sérusiaux also served for three non-consecutive appointments as Deputy Chief of Staff in the Government of Wallonia. He retired from both his academic and political positions in 2019.
Punctelia reddenda is a widely distributed species of foliose lichen in the family Parmeliaceae. It occurs in Africa, Europe, North America, and South America, where it grows on bark and on rock.
Ikaeria is a genus of two species of crustose lichens in the family Teloschistaceae. Both species grow on twig bark of shrubs and trees. It was circumscribed in 2017 by lichenologists Sergey Kondratyuk, Dalip Kumar Upreti, and Jae-Seoun Hur, with Ikaeria aurantiellina assigned as the type species. This lichen was previously placed in the genus Caloplaca, but molecular phylogenetic analysis showed that it belonged in a lineage that was genetically distinct from that genus. Ikaeria serusiauxii was added to the genus in 2020.
Anzia centrifuga is a species of foliose lichen in the family Parmeliaceae. It is found only on one volcano on Porto Santo in the Madeira Archipelago, where it grows on rocks.
Acanthothecis salazinica is a species of script lichen in the family Graphidaceae. Found in Panama, it was described as a new species in 2013 by Pieter van den Boom and Harrie J. Sipman. The type specimen was collected near Paraíso, Panamá Province, close to the botanical garden in the Summit Park. Here it was growing on the bark of a cultivated Parmentiera cereifera tree. The lichen contains the secondary chemical salazinic acid, for which it is named. Acanthothecis subclavulifera is quite similar in morphology, but it contains protocetraric acid rather than salazinic acid and it has a different ascospore structure.
Astrothelium cayennense is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in French Guiana, it was formally described as a new species in 2019 by lichenologists André Aptroot and Harrie Sipman. The type specimen was collected by Aptroot along a forest track called "Risque tout", west of Cayenne, at an altitude of 50 m (160 ft); here, in a tropical rainforest, it was found growing on tree bark. The lichen has a smooth, shiny, ochraceous-green thallus that covers areas up to 5 cm (2 in) in diameter. It has pyriform ascomata, measuring 0.8–1.3 mm in diameter, which are immersed in pseudostromata. The ascospores are hyaline, ellipsoid in shape, muriform and measure 295–330 by 35–40 μm. The specific epithet cayennense refers to the type locality.
Fuscoderma papuanum is a species of squamulose (scaley) lichen in the family Pannariaceae. Endemic to Papua New Guinea, it was formally described as a new species in 2002 by lichenologists Per Magnus Jørgensen and Harrie Sipman. The type specimen was collected in Myola, in the Owen Stanley Range at an altitude between 2,400 and 2,800 m. Here, in the cool, moist habitat of a montane forest dominated by coniferous trees from the genera Phyllocladus and Podocarpus, it was found growing on a bank of the Iora Creek. It is similar to the type of genus Fuscoderma, F. applanatum, but is distinguished from that species by its smaller size, narrower, smooth lobes, and by the black rhizines on the thallus underside that, in young specimens, protrude out beyond the thallus.
Henricus (Harrie) Johannes Maria Sipman is a Dutch lichenologist. He specialises in tropical and subtropical lichens, and has authored or co-authored more than 250 scientific publications. He was the curator of the lichen herbarium at the Berlin Botanical Garden and Botanical Museum from 1983 until his retirement in 2010.
Variospora aegaea is a species of saxicolous (rock-dwelling), crustose lichen in the family Teloschistaceae. First identified from Greek islands in the Aegean Sea, and has since been recorded in Italy and Spain.
Mark Richard David Seaward is a British ecologist and lichenologist. He was awarded the Acharius Medal in 2006 for lifetime contributions to lichenology.
