Myriotrema is a genus of lichen-forming fungi in the family Thelotremataceae.
Ocellularia brunneospora is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected in the Namtok Phlio National Park ; here, in a moist evergreen forest at an elevation of 100 m (330 ft), the lichen was found growing on the bark of Anisoptera costata. Ocellularia brunneospora is only known to occur at the type locality.
Ocellularia diospyri is a rare species of corticolous (bark-dwelling) lichen in the family Graphidaceae. It is found in northern Thailand.
Ocellularia flavescens is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in northern Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected from Doi Suthep National Park ; here it was found in an oak/chestnut forest at an elevation of 1,600 m (5,200 ft). It is only known from the type collection at the type locality. The lichen has shiny, smooth, whitish to mineral-grey thallus. It contains lichexanthone, a secondary compound that is uncommon in genus Ocellularia. The presence of this chemical causes the lichen thallus to fluoresce a golden-yellow colour when lit with a long-wavelength (365 nm) UV light. This feature is referenced in its specific epithet flavescens.
Ocellularia inthanonensis is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in northern Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected from a tree trunk in a cloud forest in Doi Inthanon National Park at an elevation of 2,450 m (8,040 ft). The specific epithet refers to the type locality. The lichen has a whitish mineral-grey thallus that is wrinkled and irregularly cracked.
Ocellularia kansriae is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in Northern and Eastern Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected from Phu Hin Rong Kla National Park at an altitude of 1,475 m (4,839 ft); here, in an evergreen forest, it was found growing on the bark of Syzygium. The lichen has a shiny, olivaceous-grey thallus with a texture ranging from smooth to finely verruculose (warted). It contains protocetraric acid, a secondary compound. The specific epithet kansriae honours Thai lichenologist Kansri Boonpragob, a colleague who collected specimens from Khao Yai National Park in Eastern Thailand.
Ocellularia krathingensis is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected by the first author from Khao Khitchakut National Park. The specific epithet krathingensis refers to the Namtok Krathing fall, which is close to the type locality.
Ocellularia neoleucina is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in southeastern Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected from Namtok Phlio National Park ; here, in a moist, lowland evergreen forest, it was found growing on Anisoptera costata. The lichen has a shiny, smooth, greenish thallus with a dense cortex and a white medulla with many crystals. Its ascospores are ellipsoid, thin walled, colourless, and typically measure 14.0–17.0 by 5.0–6.7 μm. It contains stictic acid, a secondary compound.
Ocellularia neoperforata is a rare species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in Malaysia, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected by the second author from Gunung Mulu National Park (Sarawak) at an elevation of about 100 m (330 ft); here, it was found in a heath forest growing on a young tree. It is only known from the type collection at the type locality. The lichen has a shiny and smooth, greenish-grey thallus with a dense cortex and a white medulla. Its ascospores are trans-septate, narrowly ellipsoid, and measure 11–15 μm long. It contains fumarprotocetraric acid, a secondary compound. Ocellularia perforata is a lookalike species after which O. neoperforata is named. In contrast to the latter lichen, it has larger ascospores, less emergent apothecia, and contains protocetraric acid.
Ocellularia peremergens is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected from Doi Inthanon National Park at an elevation of 2,450 m (8,040 ft). The lichen has a shiny, pale greenish-grey thallus with a finely verruculose (warted) texture and a white medulla. The apothecia occur solitarily, measuring 0.7–1.2 mm in diameter; they are emergent, meaning they project somewhat above the thallus surface. O. peremergens contains fumarprotocetraric acid, a secondary compound.
Ocellularia pluriporoides is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in Northern Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected in Doi Suthep National Park at an elevation of 1,600 m (5,200 ft); here, in an oak/chestnut forest, it was found growing on the trunk of Vaccinium sprengelii.
Ocellularia rhicnoporoides is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in south-eastern Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected by the first author in Namtok Phlio National Park. The lichen has a somewhat shiny, smooth, olivaceous-buff thallus with a dense cortex and a white medulla. It produces colourless, thin-walled ascospores that measure 16.5–22.0 by 7.0–8.5 μm. The specific epithet rhicnoporoides alludes to its resemblance to Ocellularia rhicnopora.
Ocellularia roseotecta is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in Malaysia, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected by the second author in Gunung Mulu National Park (Sarawak); here it was found growing on young trees in a heath forest at an elevation of 150 m (490 ft). It is only known to occur at the type locality. The lichen has a whitish-brown, irregularly cracked thallus and a medulla that is coloured from white to pale pink. The specific epithet roseotecta refers to the pink pigment of the medulla.
Ocellularia subleucina is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in south-eastern Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected in Khao Khitchakut National Park ; here it was found growing on trees in a lowland forest at an elevation of 400 m (1,300 ft). The lichen has a smooth to finely wrinkled, grey olivaceous thallus with a dense cortex and a white medulla. It does not contain any lichen substances. The specific epithet subleucina refers to its similarity with Ocellularia leucina, a lookalike species with smaller ascospores that contains psoromic acid.
Ocellularia wolseleyana is a species of lichen in the family Graphidaceae. Found in Eastern Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected by the first author in Khao Yai National Park at an elevation of 830 m (2,720 ft). Here, in a mixed deciduous forest, the lichen was found growing on rock and on bark. It has a smooth and shiny, irregularly cracked thallus that ranges in colour from whitish mineral grey to olivaceous grey. It has a dense cortex and a white to creamy buff medulla. It contains psoromic acid, a secondary compound. Ocellularia neomasonhalei is similar in appearance to O. wolseleyana.
Myriotrema grandisporum is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in Eastern Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected by the first author in Khao Yai National Park at an elevation of 1,430 m (4,690 ft). It is only known to occur at the type locality.
Myriotrema muluense is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in Malaysia, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected by the second author from Gunung Mulu National Park (Sarawak) at an altitude of 150 m (490 ft). It specific epithet refers to the type locality, the only location the species is known to occur. The lichen has a smooth and shiny, grey olivaceous thallus with a thick cortex and a white medulla. It does not contain any lichen substances.
Myriotrema thailandicum is a species of lichen in the family Graphidaceae. Found in Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected from Namtok Phlio National Park at an elevation of 100 m (330 ft). Here, on a trail close to the Phlio waterfall, it was found in a lowland rainforest, growing on both rocks and tree trunks. The lichen has a smooth and shiny, greenish-grey thallus with a dense cortex and a white medulla. It contains fumarprotocetraric acid, and sometimes has trace amounts of protocetraric acid.
Myriotrema whalleyanum is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in Thailand, it was formally described as a new species in 2002 by lichenologists Natsurang Homchantara and Brian J. Coppins. The type specimen was collected from Doi Suthep National Park at an elevation of 1,550 m (5,090 ft); it prefers growing on foliose lichens or mats of moss. The lichen has a smooth and shiny, pale straw-coloured thallus with a dense cortex and a white medulla. It makes large, colourless and thick-walled muriform (chambered) ascospores typically measuring 84–105.5 by 22.5–30.5 μm. Myriotrema whalleyanum does not contain any lichen products. The specific epithet honours Anthony Whalley, emeritus professor at Liverpool John Moores University.
Leucodecton coppinsii is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. It is found in lowland forests of Sarawak, Malaysia.
