Английская Википедия:Astrothelium mediocrassum

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Short description Шаблон:Speciesbox

Astrothelium mediocrassum is a species of corticolous (bark-dwelling), crustose lichen in the family Trypetheliaceae. Found in Guyana, it was formally described as a new species in 2016 by Dutch lichenologist André Aptroot. The type specimen was collected by Harrie Sipman south of the Kuyuwini Landing (about Шаблон:Convert south of Aishalton, Upper Takutu District) at an altitude of Шаблон:Convert. The lichen has a somewhat shiny, smooth, pale green thallus that covers an area of up to Шаблон:Convert in diameter. Its ascospores are hyaline, spindle-shaped (fusiform), and muriform (i.e., divided into internal chambers by transverse and longitudinal septa), with dimensions of 70–80 by 22–25 µm. This is the smallest ascospore size of Astrothelia species. The middle, or median, septum of the spore is thickened in comparison with the others. No lichen products were detected using thin-layer chromatography. It is somewhat similar in appearance to Astrothelium octosporum, but that species has lichexanthone in its thallus and pseudostromata.[1]

References

Шаблон:Reflist

Шаблон:Taxonbar


Шаблон:Dothideomycetes-stub

  1. Ошибка цитирования Неверный тег <ref>; для сносок Aptroot et al. 2016 не указан текст