Hertelidea
| Hertelidea | |
|---|---|
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| |
| Hertelidea botryosa | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Stereocaulaceae |
| Genus: | Hertelidea Printzen & Kantvilas (2004) |
| Type species | |
| Hertelidea botryosa | |
| Species | |
|
H. aspera | |
Hertelidea is a genus of crustose lichens in the family Stereocaulaceae. Characteristics of the genus include carbon-black ring or outer margin (exciple) around the fruit body disc (apothecium), eight-spored, Micarea-type asci and mostly simple, hyaline ascospores that lack a transparent outer layer. Hertelidea species mostly grow on wood, although less frequently they are found on bark or soil. While the type species, Hertelidea botryosa, has a widespread distribution, most of the other species are found only in Australia.
Taxonomy[edit]
Hertelidea was circumscribed in 2004 by Christian Printzen and Gintaras Kantvilas to accommodate species that were formerly referred to as the "Lecidea botryosa" group. Four species were originally included: Hertelidea botryosa, H. eucalypti, H. geophila, and H. pseudobotryosa.[1] H. aspera was transferred to the genus from Lecidea in 2005,[2] while H. wankaensis was described as a new species in 2006.[3]
The genus name honours Hannes Hertel (b.1939), a German Taxonomist and lichenologist and former Director of the Botanische Staatssammlung München,[4] who was the subject of the Festschrift in which this species was published.[1]
Description[edit]
Hertelidea lichens have a crustose thallus that is sometimes sorediate. Their apothecia, which are often arranged in conspicuous clusters, are lecideine, meaning that they have a carbonized thin black ring (an exciple) around the cup-shaped apothecium. The paraphyses are weakly to moderately branched and anastomosing, and have pigmented, capitate tips that separate readily in KOH. The asci are eight-spored and Micarea-like, featuring a prominent, amyloid thallus that is more or less lacking an ocular chamber but is pierced by a more darkly staining tubular structure. The ascospores are simple or rarely one-septate, colourless, and non-halonate.[1]
Chemistry[edit]
One species, H. eucalypti, contains homosekikaic acid, whereas the others contain perlatolic acid.
Habitat and distribution[edit]
Species of Hertelidea are typically found on charred and rotting wood. In Australia, the logs and stumps of eucalypts are a particularly favoured substrate.[2]
Species[edit]
- Hertelidea aspera (Müll.Arg.) Kantvilas & Elix (2005)[2] – Australia
- Hertelidea botryosa (Fr.) Printzen & Kantvilas (2004) – boreal and temperate regions in Northern Hemisphere
- Hertelidea eucalypti Kantvilas & Printzen (2004) – Australia
- Hertelidea geophila Kantvilas & Printzen (2004) – Australia
- Hertelidea pseudobotryosa R.C.Harris, Ladd & Printzen (2004) – Australia; North America
- Hertelidea wankaensis Kantvilas & Elix (2006)[3] – Australia
References[edit]
- ^ a b c Printzen, C.; Kantvilas, G. (2004). "Hertelidea, genus novum Stereocaulacearum (Ascomycetes lichenisati)". In Döbbeler, P.; Rambold, G. (eds.). Contributions to Lichenology. Festschrift in Honour of Hannes Hertel. Bibliotheca Lichenologica. Vol. 88. J. Cramer. pp. 539–553.
- ^ a b c Kantvilas, Gintaras; Elix, John (2005). "Hertelidea aspera, an overlooked name for a common Australian lichen" (PDF). Australasian Lichenology. 57: 4–5.
- ^ a b Kantvilas, Gintaras; Elix, John (2006). "Further notes on the genus Hertelidea, with a description of a new species". Australasian Lichenology. 59: 30–33.
- ^ Burkhardt, Lotte (2022). Eine Enzyklopädie zu eponymischen Pflanzennamen [Encyclopedia of eponymic plant names] (pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2022. ISBN 978-3-946292-41-8. S2CID 246307410. Retrieved January 27, 2022.