Thelocarpella gordensis gen. et sp. nov. (Ascomycetes lichenisati, Acarosporaceae)

Navarro–Rosinés, Pere; Roux, Claude; Bellemere, A.

doi:10.1139/b99-040

Cited by 9 publications

(6 citation statements)

References 4 publications

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“…Hence, the divisions in the key do not reflect the subgroups that can be distinguished within the genus (e.g. Navarro-Rosinés et al 1999). For example, Thelocarpon opertum and T. periphysatum are probably closely related, but separated early in the key by ascospore shape.…”

Section: Discussionmentioning

confidence: 99%

“…This variation in lichenization at times blurs the demarcation between freeliving fungi and lichens within the genus. Filaments can be present in the ostiolar canal (periphyses), inside on the sides of the excipulum (periphysoids) and between the asci as interascal filaments (paraphyses) (Navarro-Rosinés et al 1999), and their shape and presence are important characteristics that define the species. Salisbury (1966) monographed the genus and recognized 13 Thelocarpon species, but many new species have been described since then.…”

Section: Introductionmentioning

confidence: 99%

“…were transferred to the genus Ahlesia Fuckel (Salisbury 1966), but are today again placed in Thelocarpon since the division of the genus based on disc exposure alone is considered arbitrary ). However, the genus is probably heterogenous and several distinct subgroups can be distinguished (Salisbury 1966;Navarro-Rosinés et al 1999). Currently, DNA sequences from only a small number of species are available, and the phylogenetic position of the genus within the Pezizomycotina is still uncertain (Reeb et al 2004;Lumbsch et al 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Filaments can be present in the ostiolar canal (periphyses), inside on the sides of the excipulum (periphysoids) and between the asci as interascal filaments (paraphyses) (Navarro-Rosinés et al . 1999), and their shape and presence are important characteristics that define the species.…”

Section: Introductionmentioning

confidence: 99%

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A new species of Thelocarpon from Dutch quarries, with a worldwide key to the species of the genus

van der Kolk,

Timans,

Boers

et al. 2023

The Lichenologist

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Thelocarpon periphysatum sp. nov. is described from marl quarries in the Netherlands. The species is characterized by perithecioid ascomata that have a green-yellowish ring around the ostiole, abundant periphyses and periphysoids that are up to 120 μm long, the absence of paraphyses and the wide, oblong and often somewhat asymmetrical ascospores. The perithecia are immersed in black cyanobacterial crusts on calcareous rocks. A worldwide key is provided to the 30 species of Thelocarpon that are currently accepted.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A new species of Thelocarpon from Dutch quarries, with a worldwide key to the species of the genus

van der Kolk,

Timans,

Boers

et al. 2023

The Lichenologist

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“…Other two genera, 1) Sarcosagium (Thelocarpaceae) and 2) Thelocarpella (Thelocarpaceae) differ from Athelium mainly by 1) fully exposed apothecial ascomata with white-pink pruina [GILBERT, PURVIS, 2009] and 2) dark pigmented to carbonized upper wall of perithecia [NAVARRO-ROSINÉS et al, 1999].…”

Section: Methodsmentioning

confidence: 99%

Athelium imperceptum Nyl. (Thelocarpaceae, Ascomycota), a scarcely known ephemeral lichen of biological soil crusts, new to Ukraine

Khodosovtsev¹,

Naumovich²,

Vondráková³

et al. 2010

Chornomors’k. bot. z.

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Our new record to Ukraine of a rare lichen Athelium imperceptum (syn. Thelocarpon imperceptum) is discussed. We provide data on ecology of the species and its European distribution and we have also made up modern diagnoses of both, the genus Athelium and the species A. imperceptum. The recovered genus Athelium is distinguished from Thelocarpon by the absence of pulvinic acid derivates forming a superficial yellow pruina on perithecia; its perithecia rather resemble those of Thelopsis rubella. Thelocarpon magnussonii is also devoid of yellow pruina (probably a secondary lost) but it differs from A. imperceptum by its well-developed thalline exciple.

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Revision of Trimmatothele (Verrucariaceae), and description of Oevstedalia for Trimmatothelopsis antarctica, a new lichen genus with true ascoconidia

Ertz

Diederich

2004

Mycol Progress

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he genera Trimmatothele Zahlbr. and Trimmatothelopsis Zschacke have always been amongst the most poorly known genera of lichens. Trimmatothele was described for a species of pyrenolichens similar to Verrucaria, but with multispored asci, and Trimmatothelopsis was said to differ by the presence of interascal filaments. A total of six species were described or combined in the two genera. The main problem with these species has always been their rarity, the extremely small number of available herbarium specimens, and the missing types. No accurate description was available for the type species of Trimmatothele, and thus some specimens were only tentatively attributed to this species, awaiting the rediscovery of the type specimen.Over ten years ago, P. Diederich received an unidentified Antarctic specimen from A. Aptroot for determination that proved to belong to Trimmatothelopsis antarctica. As a great surprise, the living state of the recently collected specimen allowed us to ascertain that the asci are not multispored, as previously considered, but polyconidial, with 8 balls of ascoconidia in each ascus. Six years later, Dag Olav Øvstedal contacted P. Diederich, as he had observed ascoconidial balls in another specimen of the same species. Following that unexpected discovery, we decided to revise both genera Trimmatothele and Trimmatothelopsis. It took us another five years to locate the type of Trimmatothele perquisita through the courtesy of Dag Olav Øvstedal, and only at that moment a revision became possible. In the mean time, NAVARRO-ROSINÉS, ROUX & BELLEMÈRE (1999) and ROUX & NAVARRO-ROSINÉS (2002) were able to examine the type of Trimmatothelopsis versipellis and to conclude that that species belongs to Acarospora and that Trimmatothelopsis is therefore a younger synonym of Acarospora.In this paper we will revise the type of Trimmatothele and show that it is a multispored species of Verrucaria, and we will demonstrate that Trimmatothelopsis antarctica is not related to Verrucaria and needs the description of a new genus. For two species, no material is available, and it is impossible to take any decision until new collections are made. Finally, two species are excluded, as they belong to Acarospora. Material and methodsWe studied specimens from AAS, BG, C, E, FH, GZU, O and UPS, and from the private collections of A. Aptroot and P. Diederich. Hand-made sections were examined in water, 5 % KOH (K), lactophenol with cotton blue, or Lugol's reagent withoutThe type species of Trimmatothele is shown to differ from Verrucaria only by the multispored asci. Trimmatothele is consequently regarded as a younger synonym of Verrucaria, and the new combination Verrucaria perquisita proposed. The species is just known from Europe, where it is very rare on calcareous rocks and has a boreo-alpine distribution. Trimmatothelopsis antarctica is a very distinct lichen, not related with Verrucaria, and the new genus Oevstedalia is described to accommodate it. Oevstedalia is characterized by relatively pale perithecia with a hy...

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Thelocarpella gordensis gen. et sp. nov. (Ascomycetes lichenisati, Acarosporaceae)

Cited by 9 publications

References 4 publications

A new species of Thelocarpon from Dutch quarries, with a worldwide key to the species of the genus

A new species of Thelocarpon from Dutch quarries, with a worldwide key to the species of the genus

Athelium imperceptum Nyl. (Thelocarpaceae, Ascomycota), a scarcely known ephemeral lichen of biological soil crusts, new to Ukraine

Revision of Trimmatothele (Verrucariaceae), and description of Oevstedalia for Trimmatothelopsis antarctica, a new lichen genus with true ascoconidia

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