Cladonia mongkolsukii

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Cladonia mongkolsukii
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Cladoniaceae
Genus: Cladonia
Species:
C. mongkolsukii
Binomial name
Cladonia mongkolsukii
Parnmen & Ahti (2011)

Cladonia mongkolsukii is a species of fruticose lichen in the family Cladoniaceae. [1] Described as new to science in 2011, it is found in lower-elevation montane scrub forests of northeast Thailand and in Sri Lanka. The specific epithet honors Pachara Mongolsuk, a Thai lichenologist.

Contents

Taxonomy

Cladonia mongkolsukii was first described by Sittiporn Parnmen and Teuvo Ahti. The species name honours Thai lichenologist Pachara Mongolsuk. The type specimen was collected by the first author in Phu Hin Rong Kla National Park, Pitsanulok Province, Thailand, at an elevation of 1,110 m (3,640 ft). [2]

Phylogenetic analysis

A molecular phylogenetic analysis based on internal transcribed spacer sequence data placed Cladonia mongkolsukii near Cladonia singhii . This clade also includes Cladonia fimbriata , Cladonia gracilis , and Cladonia ochrochlora . The latter three species were grouped into the "supergroup" Cladonia by Stenroos et al. (2002). [2]

Description

The primary thallus of Cladonia mongkolsukii is persistent, with irregularly lobed to deeply laciniate segments measuring 0.7–1.8 mm long and 0.2–0.8 mm wide. The lower surface is white and ecorticate , while the upper surface is greenish and corticate . The podetia, or stalk-like structures, are 10–65 mm tall, 0.3–3 mm thick, and are whitish grey to brownish in colour. They may be unbranched or slightly branched at the apex, and initially lack cup-like structures (ascyphose), but soon develop very narrow scyphi (1–3 mm in diameter) at the tips. [2]

The surface of the podetia is rough and either ecorticate or discontinuously corticate with microsquamules. These microsquamules are more densely distributed near the tips. The apothecia , or spore-producing structures, are pale brown to orange or brownish and are terminal on the podetia. The ascospores number eight per ascus. They are simple , hyaline, oblong to ellipsoid in shape, and typically have dimensions in the range 9–9.5–10 by 2.7–2.9–3.1  μm. In terms of secondary chemistry, C. mongkolsukii contains both fumarprotocetraric acid and homosekikaic acid as major lichen products. [2]

Cladonia mongkolsukii differs from the similar Himalayan species, Cladonia awasthiana , by having podetia that are esorediate (lacking soredia) and microsquamulose (possessing tiny squamules), which are not densely squamulose near the tips. [2]

Habitat and distribution

Cladonia mongkolsukii is known to grow in lower-elevation montane scrub forests in northeast Thailand, specifically within Phu Hin Rong Kla National Park. At this locality, the lichen species is typically found on rocks at elevations around 1110 metres. [2] In 2014, it was reported from Sri Lanka, which was a new record for the Indian subcontinent. [3]

See also

Related Research Articles

<span class="mw-page-title-main">Cladoniaceae</span> Family of fungi

The Cladoniaceae are a family of lichenized fungi in the order Lecanorales. It is one of the largest families of lichen-forming fungi, with about 560 species distributed amongst 17 genera. The reindeer moss and cup lichens (Cladonia) belong to this family. The latter genus, which comprises about 500 species, forms a major part of the diet of large mammals in taiga and tundra ecosystems. Many Cladoniaceae lichens grow on soil, but other can use decaying wood, tree trunks, and, in a few instances, rocks as their substrate. They grow in places with high humidity, and cannot tolerate aridity.

<span class="mw-page-title-main">Phu Hin Rong Kla National Park</span>

Phu Hin Rong Kla National Park is a national park located in the Loei and Phitsanulok Provinces of Thailand. The protected area is located in the forested mountains of the Luang Prabang Range close to the border with Laos and is part of the Luang Prabang montane rain forests ecoregion. The park was the base of operations of the long fight of Thai combatant in communist war of Thailand.

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<i>Cladonia sobolescens</i> Species of lichen

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<i>Cladonia subradiata</i> Species of lichen

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<i>Cladonia alpina</i> Species of fungus

Cladonia alpina is a species of lichen that is in the family Cladoniaceae. It has been found in Japan, Norway, and the United Kingdom.

<i>Cladonia rei</i> Species of lichen

Cladonia rei, commonly known as the wand lichen, is a species of ground-dwelling, fruticose lichen in the family Cladoniaceae. It is a widely distributed species, having been reported from Africa, Asia, Australasia, Europe, and North America. It is identified by its slightly dirty-colored, rough-surfaced, slender podetia that grow up to 9 cm (3.5 in) tall. Diagnostic characters of the lichen include the continuously sorediate, green-and-brown-mottled, podetia that taper upward to a point, while chemically, it contains homosekikaic and sekikaic acids. Its reduced capacity to bioaccumulate toxic heavy metals from its surroundings, as well as its ability to switch photobiont partners, allows the lichen to colonize and survive highly polluted habitats. There are several other Cladonia species that are somewhat similar in appearance, but can be distinguished either by subtle differences in morphology, or by the secondary chemicals they contain.

Cladonia trassii is a species of fruticose lichen in the family Cladoniaceae. It has a circumpolar distribution and is found in arctic/alpine and subarctic habitats.

Clandestinotrema is a genus of lichen-forming fungi in the family Graphidaceae. It has 17 species. They typically inhabit montane and cloud forest at higher elevations in the tropics.

Cladonia longisquama is a species of fruticose lichen in the family Cladoniaceae. It occurs in the Seychelles, where it grows on moss-covered rocks.

Cladonia vescula is a species of fruticose lichen in the family Cladoniaceae. It is known for its small size and unique chemical composition. It can be found in the montane cloud forests and pre-Andean Amazonian forests of Bolivia and Peru, where it grows on mineral soil mixed with humus. This species closely resembles Cladonia peziziformis and Cladonia corymbosula in morphology, but it is more slender and almost entirely lacking a cortex.

References

  1. "Cladonia mongkolsukii Parnmen & Ahti". Species 2000 & ITIS Catalogue of Life . Species 2000: Naturalis, Leiden, the Netherlands. Retrieved 12 June 2023.
  2. 1 2 3 4 5 6 Lumbsch, H.T.; Ahti, T.; Altermann, S.; De Paz, G.A.; Aptroot, A.; Arup, U.; et al. (2011). "One hundred new species of lichenized fungi: a signature of undiscovered global diversity" (PDF). Phytotaxa. 18 (1): 9–11. doi:10.11646/phytotaxa.18.1.1.
  3. Weerakoon, Gothamie; Aptroot, André (2014). "Over 200 new lichen records from Sri Lanka, with three new species to science" (PDF). Cryptogamie, Mycologie. 35 (1): 51–62.