Biology:Nadvornikia
| Nadvornikia | |
|---|---|
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| Nadvornikiana sorediata in North Carolina | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Graphidales |
| Family: | Graphidaceae |
| Genus: | Nadvornikia Tibell (1984) |
| Type species | |
| Nadvornikia hawaiiensis (Tuck.) Tibell (1984)
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| Species | |
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N. diplotylia | |
Nadvornikia is a genus of lichen-forming fungi in the family Graphidaceae.[1] Species in the genus are corticolous (bark-dwelling) and crustose.
Taxonomy
The genus was circumscribed in 1984 by lichenologist Leif Tibell, with N. hawaiensis assigned as the type species. Nadvornikia is a replacement name for Stephanophoron, which was published illegitimately by Czech lichenologist Josef Nádvorník in 1942 (because the fungal genus Stephanophorus already occupied that name).[2] The genus name pays tribute to Nádvorník (1906–1977), the first to recognize the type species of this genus as representing a distinct evolutionary lineage, separate from other similar lichens.[3]
Description
Nadvornikia species have a continuous, epiperidermal thallus. The surface of the thallus can be smooth or uneven, and no prothallus is present. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], which is absent or loosely arranged, features an irregular [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] with Trentepohlia green algal cells and calcium oxalate crystals. The medulla is endoperidermal (located within the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]. Vegetative propagules in Nadvornikia lichens may be absent or present as [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]a. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] are rounded and can be either immersed or sessile, with or without a [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] may be entire or fissured, while the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] is always entire. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] is [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] and entire, while the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] is absent. The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] is also prosoplectenchymatous and hyaline. The hymenium is hyaline and clear, while the [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] can be thin or indistinct.[4]
The [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] are unbranched and have smooth tips, with no [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] present. The asci are fusiform, and each contains eight [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]]. These ascospores can be either hyaline or dark brown, 1-septate to somewhat [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]], and non-amyloid. [[Glossary of lichen terms#{{biology:{1}}}|{{Biology:{1}}}]] have not been observed in Nadvornikia lichens.[4]
The secondary chemistry of Nadvornikia lichens includes stictic acid and various related lichen substances.[4]
Species
(As of March 2023), Species Fungorum (in the Catalogue of Life) accepts three species of Nadvornikia;[1] an additional two species have been formally described and published.
- Nadvornikia diplotylia (Nyl.) G.Pant & D.D.Awasthi (1989)
- Nadvornikia expallescens (Nyl.) I.Medeiros, Lücking & Lumbsch (2017)[4]
- Nadvornikia hawaiensis (Tuck.) Tibell (1984)
- Nadvornikia peninsulae (R.C.Harris) I.Medeiros, Lücking & Lumbsch (2017)[4]
- Nadvornikia sorediata R.C.Harris (1990)
References
- ↑ 1.0 1.1 "Nadvornikia". Species 2000: Naturalis, Leiden, the Netherlands. https://www.catalogueoflife.org/data/taxon/5X2G.
- ↑ Tibell, L. (1984). "A reappraisal of the taxonomy of Caliciales". Beihefte zur Nova Hedwigia 79: 597–713 [672].
- ↑ Hertel, Hannes (2012) (in de). Gattungseponyme bei Flechten und Lichenicolen Pilzen. Bibliotheca Lichenologica. 107. Stuttgart: J. Cramer. p. 84. ISBN 978-3-443-58086-5.
- ↑ 4.0 4.1 4.2 4.3 4.4 Medeiros, Ian D.; Kraichak, Ekaphan; Lücking, Robert; Mangold, Armin; Lumbsch, H. Thorsten (2017). "Assembling a taxonomic monograph of tribe Wirthiotremateae (Lichenized Ascomycota: Ostropales: Graphidaceae)". Fieldiana Life and Earth Sciences 9: 1–31. doi:10.3158/2158-5520-16.9.1. https://www.biodiversitylibrary.org/bibliography/169194.
Wikidata ☰ Q6958023 entry
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