| Lobariella reticulata | |
|---|---|
 | |
| in Machu Picchu, Peru | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Peltigerales |
| Family: | Peltigeraceae |
| Genus: | Lobariella |
| Species: | L. reticulata |
| Binomial name | |
| Lobariella reticulata B.Moncada & Lücking (2013) | |
Lobariella reticulata is a species of foliose lichen in the family Peltigeraceae. [1] It is found in Colombia.
The lichen was formally described as a new species in 2013 by the lichenologists Bibiana Moncada and Robert Lücking. The type specimen was collected by the first author in Zona de Amortiguación, Mundo Nuevo, La Calera, Cundinamarca (Colombia) at elevations ranging from 2,900 to 3,100 m (9,500 to 10,200 ft). [2]
Lobariella reticulata is known for its growth on thin trunks, stems, and branches. The thallus of this species can reach up to 8 cm (3.1 in) in diameter and is loosely attached to its substrate . Its photobiont is the green alga Dictyochloropsis . The individual lobes of Lobariella reticulata can grow up to 4 cm (1.6 in) long and are characterized by their irregular shape with incised apices and irregularly incised margins, measuring 5–10 mm in width. These lobes are irregularly branched, forming circular to irregular thallus rosettes. The upper surface of the lichen is pale green when hydrated, turning pale grey when dry, and often becomes pale yellowish grey in herbarium conditions. This surface is marked by dense, linear maculae forming a reticulate, white network, weakly contrasting with the surrounding thallus surface. The species lacks pseudocyphellae but often forms reticulate cracks towards the centre. Isidia are absent in this species. [2]
The lower surface of Lobariella reticulata is cream-coloured to pale yellowish brown, featuring a very short, dense tomentum made up of hyphae composed of spherical cells. The tomentum is cream-coloured to pale yellowish brown, with discrete, white to pale yellowish brown rhizines that are unbranched or occasionally branched at the tip. These rhizines become darker towards the centre and are covered with tomentum up to their tips. The upper cortex of Lobariella reticulata is paraplectenchymatous , measuring 25–35 μm in thickness, with a 4–5 μm thick epicortex formed of 3–5 cell layers. The algal layer is 15–25 μm thick, while the medulla is between 100 and 150 μm thick. The lower cortex mirrors the upper in structure, being paraplectenchymatous and 10–15 μm thick, formed of 2–3 cell layers. [2]
Apothecia (fruiting bodies) in Lobariella reticulata are abundant, cup-shaped, and can reach up to 7 mm in diameter, featuring thick, strongly prominent, crisp, pale grey margins. The lobules are very irregular, often branched or incised, and the disc is concave and orange-brown. The excipulum is composed of parallel, partly branched hyphae resembling a paraplectenchyma. The hymenium is clear, measuring 120–130 μm in height, with a yellow-orange, strongly conglutinated epithecium. Ascospores of Lobariella reticulata are narrowly fusiform , measuring 60–80 by 4–5 μm, with 7 septa and a hyaline appearance. Pycnidia were not observed in this species. [2]
Lobariella reticulata is found in the páramo of Sumapaz near Bogotá, Colombia. [2]
Gallaicolichen is a fungal genus that contains the single species Gallaicolichen pacificus, a foliicolous (leaf-dwelling) lichen. Originally discovered in Hawaii in 2007, G. pacificus has since been found in various locations across the Pacific, including Australia, New Caledonia, Vanuatu, the Philippines, and Japan. The lichen forms small, pale greenish-yellow to yellowish-grey patches on leaves, typically in mid-altitude forests and along forest edges. G. pacificus is notable for its unique reproductive structures called peltidiangia, which produce disc-shaped propagules (peltidia) for asexual reproduction. Initially, its taxonomic classification was uncertain, but recent discoveries of specimens with sexual reproductive structures have enabled scientists to confidently place it within the family Porinaceae.
Dictyonema hernandezii is a species of basidiolichen in the family Hygrophoraceae. Found in montane rainforests of Costa Rica and in Colombia, it was described as new to science in 2011. The specific epithet hernandezii honours Venezuelan lichenologist Jesús Hernández.
Cora hirsuta is a species of basidiolichen in the family Hygrophoraceae. Found in the páramo region near Bogotá at over 3,000 m (9,800 ft) elevation, it was described as new to science in 2011. The lichen, characterised by its distinctively hairy upper surface and smaller lobes, thrives in a variety of habitats, including soil, bryophytes, and as epiphytes on trees.
Sticta venosa is a species of terricolous (ground-dwelling), foliose lichen in the family Peltigeraceae. It is known only from Pichincha Province, Ecuador, and from Colombia. It was described as new to science in 2011.
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.
Punctelia colombiana is a species of corticolous (bark-dwelling) and foliose (leafy) lichen in the family Parmeliaceae. It is found in South America.
Parmelia barrenoae is a species of foliose lichen in the large family Parmeliaceae. It was formally described as a new species in 2005. Before this, it was lumped together as one of several lichens in the Parmelia sulcata group—a species complex of genetically distinct lookalikes. Parmelia barrenoae is widely distributed, occurring in Europe, western North America, Africa, and Asia.
Cora byssoidea is a species of basidiolichen in the family Hygrophoraceae. Found in Colombia, it was formally described as a new species in 2013 by lichenologists Robert Lücking and Bibiana Moncada. The type specimen was collected in Páramo El Verjón at an altitude of 3,200 m (10,500 ft). Here it was found growing as an epiphyte on twigs and small branches of páramo vegetation. The lichen is only known from the type locality. The specific epithet byssoidea refers to the byssoid surface of the upper thallus. This surface comprises an irregularly dissolved layer of single hyphae in the cortex. A lookalike species, Cora hirsuta, also found at the same location, has a similar surface texture. In this lichen the surface is made of erect trichomes of agglutinated hyphae; despite their similarities, the two species are not closely related.
Lobariella robusta is a species of foliose lichen in the family Peltigeraceae. Found in Hawaii, it was formally described as a new species in 2017 by lichenologists Robert Lücking Bibiana Moncada and Clifford Smith. The type specimen was collected by Smith from the Keck Observation Headquarters (Waimea) at an elevation of 822 m (2,697 ft). Here, in a mesic habitat with open-landscaped parkland, the lichen grows on tree trunks. Its thalli, closely attached to their substrate, are up to 5 cm (2 in) in diameter with a smooth, light green upper surface colour that becomes pale green-grey to yellowish grey after drying. It is only known to occur at the type locality. Secondary chemicals that are found in the lichen include pseudocyphellarin A, 4-O-methyl-gyrophoric acid, and gyrophoric acid. The specific epithet refers to the "rather robust, leathery thallus".
Lobariella sipmanii is a species of foliose lichen in the family Peltigeraceae. It is found in high-altitude páramo in Cundinamarca, Colombia.
Sticta atroandensis 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.
Heppia arenacea is a species of terricolous (ground-dwelling) lichen in the family Lichinaceae. Discovered in Yemen, it is characterized by its sand-coloured thallus and the incorporation of soil particles throughout its vegetative parts. The lichen is found in soil crust communities over limestone and basaltic rock in desert habitats, as well as in partially sheltered areas between large boulders.
Dictyonema krogiae is a species of basidiolichen in the family Hygrophoraceae. It is found in Kenya, where it grows as an epiphyte on trees. It is often found in association with other lichens, such as Parmotrema, and bryophytes, such as Frullania. A main characteristic that distinguishes it from other closely related species is its clearly defined internal layers, including its contrasting dense photobiont layer and a loose lower cortex.
Dictyonema obscuratum is a species of basidiolichen in the family Hygrophoraceae. Originally discovered in Brazil and later recorded in Bolivia and Colombia, its cryptic, olive-green thallus sets it apart from similar species like Dictyonema phyllophilum and D. schenckianum.
Leptogium cookii is a species of corticolous (bark-dwelling), foliose lichen in the family Collemataceae. It is found in northwestern North America.
Fellhanera ivoriensis is a species of foliicolous (leaf-dwelling) lichen. First described in 2001, this species is distinguished from its relatives in the Fellhanera by its soredia-covered thallus and the characteristics of its apothecia. It is native to the Ivory Coast in West Africa.
Thelotrema fijiense is a little-known species of corticolous (bark-dwelling), crustose lichen in the family Graphidaceae. It is known from Fiji.
Sticta torii is a rare species of corticolous (bark-dwelling), lichen in the family Peltigeraceae. Found in northwestern North America, it was formally described as a new species in 2018 by the lichenologists Antoine Simon and Trevor Goward, from specimens collected in Alaska. The species epithet honours the Norwegian lichenologist Tor Tønsberg, "in recognition of his outstanding, vigorous contribution to lichenology".
Pseudocyphellaria hirsuta is a species of foliose lichen in the family Peltigeraceae. First described in 1835, it has undergone several taxonomic revisions over nearly two centuries. The lichen forms a flat, leaf-like structure (thallus) that can grow up to 27 cm in diameter, typically appearing grey or brown and covered in fine hairs. It is characterised by small pore-like structures called pseudocyphellae on its lower surface, which can be yellow or, less commonly, white. P. hirsuta grows mainly on trees in forested areas, particularly those dominated by southern beech (Nothofagus) species, but can also be found on rocks, soil, and stumps. The species is widely distributed in Argentina and Chile, from central regions to Tierra del Fuego, and has been observed in various forest types and elevations.