Ocellularia upretii

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Ocellularia upretii
Scientific classification Red Pencil Icon.png
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Ostropales
Family: Graphidaceae
Genus: Ocellularia
Species:
O. upretii
Binomial name
Ocellularia upretii
S.Joshi, Divakar, Lumbsch & Lücking (2018)

Ocellularia upretii is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. It is found in India.

Contents

Taxonomy

The lichen was formally described as a new species in 2018 by Santosh Joshi, Pradeep Divakar, H. Thorsten Lumbsch, and Robert Lücking. The type was collected in the Shimoga District of central Western Ghats. The specific epithet upretii honours Indian lichenologist Dalip Kumar Upreti, "on the occasion of his retirement". [1]

Description

Ocellularia upretii has a greyish green to olivaceous green thallus with a well-developed cortex. The ascomata are numerous and scattered throughout the thallus, some immersed in the surface and some more prominent; all have rounded to oval pores. The proper exciple (the margin of the apothecium, lacking algal cells) is reddish brown. The ascospores have between 10 and 20 thick septa that section the spore transversely; the spores measure 100–125 by 15–25  μm. No secondary compounds were detected in the lichen using thin-layer chromatography, and all of the standard chemical spot tests are negative. Ocellularia allosporoides is a similar species that is phylogenetically distinct; unlike the substance-free O. upretii, it contains norisonotatic acid and norsubnotatic acid in its thallus. [1]

Distribution

Ocellularia upretii is widespread in evergreen forests of the Western Ghats, and tropical rainforests of Andaman and Nicobar Islands and the Eastern Himalayas. [1]

See also

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Ocellularia aptrootiana is a species of corticolous lichen in the family Graphidaceae. Found in Sri Lanka, it was formally described as a new species in 2014 by lichenologists Gothamie Weerakoon, Robert Lücking, and Helge Thorsten Lumbsch. The type specimen was collected from Mahailluppallama at an altitude of 170 m (560 ft). Here, in a low-altitude, dry, semi-evergreen forest, it was found growing around a water tank. The specific epithet aptrootiana honours Dutch lichenologist André Aptroot, "for his important contributions to tropical lichenology and his help with the research by the first author". Ocellularia aptrootiana has a grey, smooth to uneven or cracked thallus up to convert 5 cm (2 in) in diameter. The ascospores are hyaline, ellipsoid in shape, contain seven septa, and measure 20–25 by 6–7 μm. Secondary chemicals present in the lichen include psoromic acid, subpsoromic acid, and 2’-O-demethylpsoromic acids.

Ocellularia balangoda is a species of corticolous lichen in the family Graphidaceae. Found in Sri Lanka, it was formally described as a new species in 2014 by lichenologists Gothamie Weerakoon, Robert Lücking, and Helge Thorsten Lumbsch. The type specimen was collected from a high-altitude tea estate in Hunnasgiriya at an altitude of 1,240 m (4,070 ft); here it was found growing on tree trunks. The specific epithet refers to the prehistoric hominids known as Balangoda Man, who lived in Sri Lanka about 38,000 to 28,500 years ago. Ocellularia balangoda has a grey thallus up to 5 cm (2 in) in diameter, with a papillose (pimply) to verrucose (warty) textured surface. The ascospores are hyaline, ellipsoid in shape, contain seven septa, and measure 25–30 by 5–7 μm. Secondary chemicals present in the lichen include protocetraric acid and virensic acid.

Ocellularia cloonanii is a species of corticolous lichen in the family Graphidaceae. Found in Sri Lanka, it was formally described as a new species in 2014 by lichenologists Gothamie Weerakoon, Robert Lücking, and Helge Thorsten Lumbsch. The type specimen was collected from a high-elevation montane forest in the Fishing Hut Tea Estate at an altitude of 1,870 m (6,140 ft). The lichen is only known to occur at the type locality in the Horton Plains. The specific epithet cloonanii honours Colman Patrick Cloonan, "for his immense help in carrying out the research studies". Ocellularia cloonanii has an olive-grey thallus up to 5 cm (2 in) in diameter, with continuous but uneven surface. Its ascospores are hyaline, ellipsoid in shape, contain seven to nine septa, and measure 35–40 by 7–10 μm. Secondary chemicals present in the lichen include psoromic acid, subpsoromic acid, and 2’-O-demethylpsoromic acid.

Ocellularia raveniana is a species of corticolous lichen in the family Graphidaceae. Found in Sri Lanka, it was formally described as a new species in 2014 by lichenologists Gothamie Weerakoon, Robert Lücking, and Helge Thorsten Lumbsch. The type specimen was collected from a high-elevation tea estate in Matale at an altitude of 1,360 m (4,460 ft). The lichen is only known to occur at the type locality and in the Sabaragamuwa Mountain Range. The specific epithet raveniana honours botanist and environmentalist Peter H. Raven, longtime director and now President Emeritus of the Missouri Botanical Garden. Ocellularia raveniana has a cream-colored to white thallus up to 10 cm (4 in) in diameter, with an uneven to somewhat verrucose (warty) surface. Its ascospores are hyaline, oblong to ellipsoid in shape, contain seven to nine septa, and measure 25–35 by 8–10 μm. Secondary chemicals present in the lichen include protocetraric acid, and virensic acid.

Lecanora luteomarginata is a species of saxicolous (rock-dwelling) and crustose lichen in the family Lecanoraceae. Found in India, it was formally described as a new species in 2006 by Sanjeeva Nayaka, Dalip Kumar Upreti, and H. Thorsten Lumbsch. The type specimen was collected in the trail from Gaurikund to Rambara in the valley of the Mandakini River at an elevation ranging from between 1,980 and 2,800 m. It is only known from the type locality. Characteristics of the lichen include its thin, smooth thallus, dark brown apothecia with bright yellow margins, melacarpella-type amphithecia and glabrata-type epihymenia. The specific epithet luteomarginata refers to the yellow-coloured apothecial margins. Secondary compounds in the lichen include arthothelin, atranorin, chloroatranorin, and thiophanic acid.

Ocellularia rivasplatiana is a species of corticolous (bark-dwelling) lichen in the family Graphidaceae. Found in Singapore, it was formally described as a new species in 2015 by Gothamie Weerakoon and Robert Lücking. The type specimen was collected by the first author from a low-elevation primary forest in the Bukit Timah Nature Reserve. It is only known to occur at the type locality. The species epithet honours lichenologist Eimy Rivas Plata.

Astrothelium aurantiacocinereum is a species of corticolous (bark-dwelling), crustose lichen in the family Trypetheliaceae. It occurs in New Caledonia.

Astrothelium fijiense is a species of corticolous (bark-dwelling), crustose lichen in the family Trypetheliaceae. Found in Fiji, it was formally described as a new species in 2016 by Robert Lücking, Khwanruan Naksuwankul, and Helge Thorsten Lumbsch. The type specimen was collected from Nakoba Levu at an altitude of 750 m (2,460 ft); there, it was found growing on bark on a steep slope in a secondary forest. The lichen has a smooth to uneven, light olive-yellow thallus that covers areas of up to 5 cm (2 in) in diameter. Both the thallus and the pseudostromata contain lichexanthone, a lichen product that causes these structures to fluoresce a yellow colour when lit with a long-wavelength UV light. The species epithet fijiense refers to the type locality. The characteristics of the lichen that distinguish it from others in genus Astrothelium are the distinctly pseudostromatic ascomata, and the presence of lichexanthone on the pseudostromata. Astrothelium cinereorosellum is somewhat similar, but that species has slightly longer ascospores and does not have lichexanthone on the pseudostromata.

References

  1. 1 2 3 Joshi, Santosh; Upreti, Dalip K.; Divakar, Pradeep K.; Lumbsch, H. Thorsten; Lücking, Robert (2018). "A re-evaluation of thelotremoid Graphidaceae (lichenized Ascomycota:Ostropales) in India". The Lichenologist. 50 (6): 627–678. doi:10.1017/s0024282918000439. S2CID   92498019.