Heiomasia

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Heiomasia
Heiomasia seaveyorum - Flickr - pellaea.jpg
Heiomasia seaveyorum
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Graphidales
Family: Graphidaceae
Genus: Heiomasia
Nelsen, Lücking & Rivas Plata (2010)
Type species
Heiomasia sipmanii
(Aptroot, Lücking & Rivas Plata) Nelsen, Lücking & Rivas Plata (2010)
Species

H. annamariae
H. pallescens
H. seaveyorum
H. siamensis
H. sipmanii

Contents

Heiomasia is a genus of corticolous (bark-dwelling), crustose lichens in the family Graphidaceae. It has five species.

Taxonomy

The genus was circumscribed in 2010 by Matthew Nelsen, Robert Lücking and Eimy Rivas Plata, with Heiomasia sipmanii assigned as the type species. [1] This species, found in Thailand and the Philippines, was first described as Herpothallon sipmanii. [2] Molecular phylogenetic analysis showed that it, along with another then-undescribed species, H. seaveyorum , formed a clade with a distinct lineage in the Graphidaceae, and so Heiomasia was created to contain them. The genus name honours Harrie Sipman, "recognizing his substantial contributions to tropical lichenology". The name is constructed from letters of his full name: Henricus Johannes Maria Sipman (with the "J" changed to "I"). [1]

Description

Heiomasia species have pale green to whitish thalli that are effuse (spread out) and byssoid (wispy, like cotton), and often have a white prothallus. A major characteristic of the genus is the presence of large sausage-shaped or disc-shaped isidia-like structures. Lichen products found in Heiomasia are protocetraric acid, hypoprotocetraric acid, and metabolically related satellite compounds. [1]

Morphologically, Heiomasia resembles species in Cryptothecia , Herpothallon , and Dichosporidium , but those genera are in the order Arthoniales and are not closely related. [1]

Species

Klaus Kalb published a key to the five known Heiomasia species in 2020. [3]

Related Research Articles

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The Graphidaceae are a family of lichen-forming fungi in the order Graphidales. The family contains nearly a hundred genera and more than 2000 species. Although the family has a cosmopolitan distribution, most Graphidaceae species occur in tropical regions, and typically grow on bark.

<i>Fissurina</i> Genus of fungi

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<i>Acanthothecis</i> Genus of lichen

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<i>Myriotrema</i> Genus of lichen-forming fungi

Myriotrema is a genus of lichen-forming fungi in the family Graphidaceae.

<i>Acanthotrema</i> Genus of lichen

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Topeliopsis is a genus of lichen-forming fungi in the family Graphidaceae.

<i>Malmidea</i> Genus of fungi

Malmidea is a genus of crustose lichens and the type genus of the family Malmideaceae. It was established in 2011 to contain a phylogenetically distinct group of species formerly placed in the genus Malcolmiella. Malmidea comprises more than 50 mostly tropical species that grow on bark, although a few grow on leaves.

<i>Coenogonium</i> Genus of lichen

Coenogonium is a genus of crustose lichens in the monotypic family Coenogoniaceae. It has about 90 species. Most species are leaf-dwelling or grow on bark, although a few are known to grow on rocks under certain conditions, and some are restricted to growth on termite nests. The genus was circumscribed in 1820 by German naturalist Christian Gottfried Ehrenberg.

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Wirthiotrema is a genus of lichen-forming fungi in the family Graphidaceae. The genus was circumscribed in 2010 by Eimy Rivas Plata, Klaus Kalb, Andreas Frisch, and H. Thorsten Lumbsch, with Wirthiotrema glaucopallens assigned as the type species. Wirthiotrema contains species that were formerly considered part of the Thelotrema glaucopallens species group. The genus name honours lichenologist Volkmar Wirth, "for his numerous outstanding contributions to lichenology".

Rhabdodiscus is a genus of script lichens in the family Graphidaceae. It has 36 species.

Henricus (Harrie) Johannes Maria Sipman is a Dutch lichenologist. He specialises in tropical and subtropical lichens, and has authored or co-authored more than 250 scientific publications. He was the curator of the lichen herbarium at the Berlin Botanical Garden and Botanical Museum from 1983 until his retirement in 2010.

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Graphidales is an order of lichen-forming fungi in the class Lecanoromycetes. It contains 6 families, about 81 genera and about 2,228 species. Family Graphidaceae are the largest crustose family within Graphidales order comprising more than 2000 species, which are widely distributed in tropical and subtropical regions of the world.

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.

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References

  1. 1 2 3 4 5 6 Nelsen, Matthew P.; Lücking, Robert; Plata, Eimy Rivas; Mbatchou, Joelle S. (2010). "Heiomasia, a new genus in the lichen-forming family Graphidaceae (Ascomycota: Lecanoromycetes: Ostropales) with disjunct distribution in Southeastern North America and Southeast Asia". The Bryologist. 113 (4): 742–751. doi:10.1639/0007-2745-113.4.742. S2CID   84013904.
  2. Aptroot, A.; Thor, G.; Lücking, R.; Elix, J.A.; Chaves, J.L. (2009). "The lichen genus Herpothallon reinstated". Bibliotheca Lichenologica. 99: 19–67.
  3. 1 2 3 Kalb, K. (2020). "New or otherwise interesting lichens. VII, including a world key to the lichen genus Heiomasia" (PDF). Archive for Lichenology. 15: 1–18.
  4. Jagadeesh Ram, T.A.M. (2014). "The genus Herpothallon (Arthoniaceae) in the Andaman Islands, India". The Lichenologist. 46 (1): 39–49. doi:10.1017/s0024282913000571. S2CID   232393678.