| Gyalectidium yahriae | |
|---|---|
Scientific classification  | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Ostropales |
| Family: | Gomphillaceae |
| Genus: | Gyalectidium |
| Species: | G. yahriae |
| Binomial name | |
| Gyalectidium yahriae W.R.Buck & Sérus. (2000) | |
Gyalectidium yahriae is an uncommon species of crustose lichen in the family Gomphillaceae. [1] It occurs in Florida and Papua New Guinea, recorded growing on bark in the former location and on both bark and on wood in the latter.
The lichen was formally described as a new species in 2000 by William Buck and Emmanuël Sérusiaux. The type specimen was collected by the first author from Duette Preserve in Manatee County, Florida, where it was found growing on oak twigs in sandhill scrub oak. Later examination by the second author revealed that it was the same species previously collected by André Aptroot in a montane forest in Papua New Guinea; this material was collected by Aptroot on decorticated (bark-free) wood. The generic name honours lichenologist Rebecca Yahr, who "very kindly returned to the type locality to collect further material of this new species". [2]
The lichen forms small, smooth, greenish rounded patches, typically usually 0.4–0.6 cm (0.16–0.24 in) in diameter, with a whitish prothallus. The species is characterized by hyphophores that are made of a circle of triangular lobes; additionally, the lichen has masses of moniliform hyphae that make long cilia on their outer cells. [2] The hyphophores have been described as resembling "flower vases with a dentate edge". [3] The lichen is sterile and so does not produce any apothecia. The photobiont partner is probably a member of Chlorococcaceae, a family of green algae. [2]
The lack of ascocarps means that the generic placement of this species cannot be made with certainty, but the authors chose Gyalectidium because of the similarity of its hyphophores with other members of that genus, and because of the intermingling of algae with the moniliform hyphae. They acknowledge, however, that a new genus may need to be created for the taxon after further studies are conducted. [2] Gyalectidium yahriae is one of the few corticolous species in a genus that contains largely foliicolous lichens. A year later, in their world monograph of Gyalectidium, Ferraro and colleagues proposed the monotypic section Goniolectidium and series Yahriae to contain the species. [3]
The Pilocarpaceae are a family of crustose lichens in the order Lecanorales. The species of this family have a cosmopolitan distribution and have been found in a variety of climatic regions. Pilocarpaceae was circumscribed by Alexander Zahlbruckner in Adolf Engler's influential 1905 work Die Natürlichen Pflanzenfamilien.
Traponora is a genus of lichen-forming fungi in the family Lecanoraceae. The genus was circumscribed in 2009 by Dutch lichenologist André Aptroot, with the Papua New Guinean Traponora asterella assigned as the type, and at that time, only species. Four newly described species were added to the genus in a 2009 publication, a species formerly in Pyrrhospora was transferred to the genus in 2017, and a new species from Australia added in 2018. Traponora lichens are predominantly from Australasia, with all species but one known to occur in Papua New Guinea.
Arthotheliopsis is a genus of fungi in the family Gomphillaceae. It has 5 species. The genus was circumscribed by Finnish lichenologist Edvard August Vainio in 1896, with A. hymenocarpoides assigned as the type species.
Ferraroa is a single-species genus in the family Gomphillaceae. It is a monotypic genus, containing the single species Ferraroa hyalina, a foliicolous (leaf-dwelling) lichen. This species was originally described by Robert Lücking in 1997 as Gyalideopsis hyalina. The type specimen was collected from leaves of Inga oerstediana in Costa Rica. Lücking, Emmanuël Sérusiaux, and Antonín Vězda transferred the taxon to the newly circumscribed genus Ferraroa in 2005 after molecular phylogenetic analysis showed it to belong to a unique lineage. The generic name Ferraroa honours Argentinian lichenologist Lidia Itatí Ferraro, "for her many contributions to lichenology in southern South America, and to our knowledge of Gomphillaceae".
Gyalectidium is a genus of lichen-forming fungi in the family Gomphillaceae. A 2020 estimates placed 52 species in the genus. The genus was circumscribed by Swiss lichenologist Johannes Müller Argoviensis in 1881. He included 3 species: G. xantholeucum, G. dispersum, and G. filicinum; the last of these is now the type species of the genus.
Hippocrepidea is a genus of fungi within the Gomphillaceae family. This is a monotypic genus, containing the single species Hippocrepidea nigra.
Aptrootia is a genus of fungi in the family Trypetheliaceae. It has three species. The genus was circumscribed by Robert Lücking and Harrie Sipman in 2007, with Aptrootia terricola assigned as the type species. This species, originally described by Dutch mycologist André Aptroot as a species of Thelenella, is known from Papua New Guinea and Costa Rica. Later molecular work showed that the species did not belong in Thelenella, but rather, in the Trypetheliaceae, with a sister taxon relationship to a branch including Bathelium and a lineage containing Trypethelium floridanum. The new genus name honours Aptroot, "in recognition of his numerous contributions to tropical lichenology".
Menegazzia dissoluta is a species of corticolous (bark-dwelling), foliose lichen found in Papua New Guinea. It was formally described as a new species in 2001 by lichenologists Peter Wilfred James, André Aptroot, Emmanuël Sérusiaux, and Paul Diederich. The type specimen was collected by Harrie Sipman in Mount Gahavisuka Provincial Park (Goroka) at an altitude of 2,300 m (7,500 ft); there it was found growing as an epiphyte on a fallen Castanopsis tree in a mossy, mountainous forest. The species epithet dissoluta refers to the "irregularly finely wrinkled upper surface that dissolves into soredia".
André Aptroot is a Dutch mycologist and lichenologist.
Malmideaceae is a family of crustose and corticolous lichens in the order Lecanorales. It contains eight genera and about 70 species.
Neoprotoparmelia is a genus of crustose lichens that was created in 2018. It contains 24 tropical and subtropical species that mostly grow on bark. Neoprotoparmelia is in the subfamily Protoparmelioideae of the family Parmeliaceae, along with the morphologically similar genera Protoparmelia and Maronina.
Tricharia vainioi is a species of foliicolous lichen in the family Gomphillaceae. It is widely distributed, having been recorded in Africa, Asia, Australia, Central and South America.
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 constantimontium is a species of foliose lichen in the family Parmeliaceae. Its range includes South America, Africa, and Mexico, where it grows on bark and twigs.
Pseudopyrenula serusiauxii is a species of lichen-forming fungus in the family Trypetheliaceae. It is found in Papua New Guinea. The lichen appears as a greenish discolouration on the trunks of Macaranga trees.
Gyalideopsis buckii is a species of bark-dwelling lichen in the family Gomphillaceae. It is found in the United States.
Arthotheliopsis serusiauxii is a species of leaf-dwelling lichen in the family Gomphillaceae. It was first formally described as a new species in 1997 by Robert Lücking, as a member of genus Echinoplaca. The type specimen was collected in Costa Rica, growing on the leaves of a dicotyledon. The specific epithet honours Belgian lichenologist Emmanuël Sérusiaux. In 2005, Lücking, Sérusiaux, and Antonín Vězda transferred it to genus Arthotheliopsis after a molecular analysis of the Gomphillaceae helped to clarify the phylogenetic relationships in the family.
Loxospora septata is a species of crustose lichen in the family Sarrameanaceae. It was first formally described as a new species in 1991 by Harrie Sipman and André Aptroot as Sarrameana septata The type was collected in Mt. Gahavisuki Provincial Park, in the Eastern Highlands Province of Papua New Guinea. Here it was found growing on bark at an altitude of 2,300 m (7,500 ft). Gintaras Kantvilas transferred the taxon to Loxospora in 2000, as he thought several characteristics of the lichen made it a better fit for this genus. These include: the presence of thamnolic acid in the thallus, the structure of the apothecia, the sparse branching of the paraphyses, and the absence of oil droplets in the hymenium.
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.
Rebecca Yahr is a lichenologist who works at the Royal Botanic Garden Edinburgh in Scotland. She was President of the British Lichen Society from 2019 until 2022.