| Sticta atroandensis | |
|---|---|
Scientific classification  | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Peltigerales |
| Family: | Peltigeraceae |
| Genus: | Sticta |
| Species: | S. atroandensis |
| Binomial name | |
| Sticta atroandensis B.Moncada & Lücking (2013) | |
Sticta atroandensis is a species of foliose lichen in the family Peltigeraceae. It is found in the Colombian Andes.
The lichen was formally described as a new species in by lichenologists Bibiana Moncada and Robert Lücking. The type specimen was collected from Valle de las Lagunillas in the Parque Nacional Natural El Cocuy (Boyacá) at an altitude of 3,800 m (12,500 ft). The species epithet refers to its similarity to Sticta andensis , but with some notable differences. Specifically, S. atroandensis is distinguished from Sticta andensis by its dark lower tomentum and smooth apothecial margins. [1]
In a time-calibrated chronogram of the phylogeny of the genus Sticta , Sticta atroandensis was most closely related to S. ambavillaria and a clade containing S. atlantica , S. arachnofuliginosa , and S. pseudohumboldtii . [2]
The thallus of Sticta atroandensis is orbicular in shape and can grow up to 10 cm (3.9 in) in diameter. It has sparse branching patterns and lobes that are suborbicular and imbricate , with rounded tips and entire margins. The upper surface of the lichen is scrobiculate , olive-green when fresh, and brown-grey to dark brown in the herbarium. The true marginal cilia are absent, but projections of the lower tomentum resembling cilia are usually present. Cyphellae are abundant, rounded, urceolate , and brown-black. The apothecia are abundant, laminal , sub-pedicellate, and biatorine , with indistinct stipes. The disc is orange-red to red-brown and the margin is cream-colored to beige. The hymenium is up to 105 μm high and the ascospores are hyaline, fusiform , and have 1–3 septa. [1]
The lower surface of the lichen is undulate, with the primary lower tomentum dense and thick, while the secondary lower tomentum is pubescent to arachnoid and pale. Rhizines are absent, and vegetative propagules are absent as well. The medulla is compact and white. The upper cortex is paraplectenchymatous , while the photobiont layer is 45–75 μm thick. The medulla is 40–150 μm thick and lacks crystals. The lower cortex is paraplectenchymatous and is 20–35 μm thick. The lower primary tomentum is composed of fascicles (bundles) formed of 12–20 hyphae, while the lower secondary tomentum is composed of simple, septate hyphae with their tips free. The cavity of the cyphellae is 40–220 μm high, and the cells of the basal membrane lack papillae . [1]
Sticta atroandensis seems to have a limited distribution in the Colombian Andes, specifically in the páramo and superparamo life zones. This species has been observed on the western slopes of the Cordillera Central and in the Cordillera Oriental, at elevations ranging from 3,600 to 4,800 m (11,800 to 15,700 ft). Sticta atroandensis typically grows epiphytically in semi-exposed to exposed microhabitats and is frequently found in association with liverworts from the genus Metzgeria and the family Lejeuneaceae. [1]
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Sticta is a genus of lichens in the family Peltigeraceae. The genus has a widespread distribution, especially in tropical areas, and includes about 114 species. These lichens have a leafy appearance, and are colored brown or black. Sticta species with cyanobacteria as photobionts can fix nitrogen from the atmosphere, and due to their relative abundance and high turnover, they contribute appreciably to the rainforest ecosystem. They are commonly called spotted felt lichens.
Imshaugia is a genus of seven species of foliose lichens in the family Parmeliaceae. They are commonly known as starburst lichens.
Peltigera vainioi is a species of lichen in the family Peltigeraceae. It is found in high-elevation locations in South America. It is a somewhat unusual species in its genus, characterized by a single holdfast that attaches to its substrate, and pores in its cortex.
Helge Thorsten Lumbsch is a German-born lichenologist living in the United States. His research interests include the phylogeny, taxonomy, and phylogeography of lichen-forming fungi; lichen diversity; lichen chemistry and chemotaxonomy. He is the Associate Curator and Head of Cryptogams and Chair of the Department of Botany at the Field Museum of Natural History.
Sticta emmanueliana is a species of foliose lichen in the family Peltigeraceae. Found in Hawaii, it was described as a new species in 2020 by Bibiana Moncada, Robert Lücking, and H. Thorsten Lumbsch. The specific epithet honours the Belgian lichenologist Emmanuël Sérusiaux, "on the occasion of his official retirement from formal duties".
Punctelia colombiana is a species of corticolous (bark-dwelling) and foliose (leafy) lichen in the family Parmeliaceae. It is found in South America.
Lobariella is a genus of lichens belonging to the family Peltigeraceae.
Sticta papillata is a species of foliose lichen in the family Peltigeraceae. Found in Colombia, it was formally described by Bibiana Moncada and Robert Lücking in 2012. The type specimen was collected in the páramo of Villapinzón (Cundinamarca) at an altitude of 3,200 m (10,500 ft). It is only known to occur in the Colombian Andes, in the Cordillera Occidental and the Cordillera Oriental, at elevations between 2,720–3,200 m (8,920–10,500 ft). The lichen grows on the bark of shrubs and trees, often in association with liverworts of the genera Radula and Metzgeria, as well as Leptogium lichens. The specific epithet refers to the characteristic papillae that occur on the cells of the basal membrane of the cyphellae.
Yoshimuriella is a genus of foliose (leafy) lichens in the family Peltigeraceae. It has nine species.
Crocodia is a genus of foliose lichens in the family Peltigeraceae. It has eight species. The genus has a cosmopolitan distribution, although most species occur in temperate and tropical regions of the Southern Hemisphere. The main characteristics of the genus that separate it from its parent genus, Pseudocyphellaria, include a yellow medulla and yellow pseudocyphellae on the lower thallus surface.
Dendriscosticta is a genus of foliose lichens in the family Peltigeraceae. The genus was circumscribed in 2013 by lichenologists Bibiana Moncada and Robert Lücking with Dendriscosticta wrightii assigned as the type species. The genus, a segregate of Sticta, was created to contain species in the Sticta wrightii clade. Dendriscosticta has a sister taxon relationship with the genera Yoshimuriella and Lobariella. Dendriscosticta is distinguished from Sticta by the presence of algae in the excipulum.
Sticta aongstroemii is a species of corticolous (bark-dwelling, foliose lichen in the family Peltigeraceae. It is found in the southern part of the Atlantic Forest of Brazil.
Sticta brevior is a species of foliose lichen in the family Peltigeraceae. It is found in the Colombian Andes.
Sticta lumbschiana is a species of foliose lichen in the family Peltigeraceae. It is found in the Colombian Andes.
Sticta macrocyphellata is a species of foliose lichen in the family Peltigeraceae. It is found in the Colombian Andes.
Sticta parahumboldtii is a species of foliose lichen in the family Peltigeraceae. It is found in the Colombian Andes.
Sticta pseudohumboldtii is a species of foliose lichen in the family Peltigeraceae. It is found in the Colombian Andes.
Sticta viviana is a species of corticolous (bark-dwelling), foliose lichen in the family Peltigeraceae. It is found in Colombia, where it grows on the branches and twigs of shrubs and treelets in high-elevation páramo habitat.
Austrotrema is a genus of lichen-forming fungi in the family Graphidaceae. It is primarily found in the Australian-Southeast Asian region. The genus is characterized by small, pore-like apothecia with a double margin, faintly amyloid ascospores, and stictic acid chemistry. Austrotrema species grow on tree bark and have a continuous thallus with a cortex that is prosoplectenchymatous–featuring densely packed, filamentous fungal hyphae that run parallel to the surface of the lichen, creating a compact and firm texture. The genus is closely related to Thelotrema and Leucodecton, but can be distinguished from them based on molecular phylogenetic data, specific morphological traits, and its secondary chemistry. Currently, Austrotrema comprises three species.