Flavocetraria

Flavocetraria
Hooded lichen ( Flavocetraria cucullata )
Systematics
Subdivision : Real ascent mushrooms (Pezizomycotina) Class : Lecanoromycetes Subclass : Lecanoromycetidae Order : Lecanorales Family : Parmeliaceae Genre : Flavocetraria
Scientific name
Flavocetraria
Kärnefelt & A. Thell

Snow lichen ( Flavocetraria nivalis )

The genus Flavocetraria includes three species of shrub lichen with pale yellowish lobes that were originally included in the genus Cetraria . They are widespread in the arctic-alpine region, but are also found sporadically in the southern hemisphere. Two types, the hooded lichen and the snow lichen , also occur in Central Europe.

description

The lichens of the genus Flavocetraria are ground-dwelling shrub lichens. They grow upright with flat or tubular, sparsely branched lobes. Your photobionts belong to the algae genus Trebouxia . There are pseudocyphella on the underside of the lobes . The species of the genus have brown, terminal apothecia , which, however, occur only rarely. The ascospores are unicellular and ellipsoid. The marginal, black pycnidia produce small, dumbbell-shaped pycnospores. All styles include & a. the usnic acid .

species

• Hooded lichen ( F. cucullata )
• F. minuscula . This species resembles a small hood braid. It occurs from Eastern Siberia to Alaska.
• Snow lichen ( F. nivalis )

Systematics and Etymology

In 1994, Kärnefelt and Thell placed the pale yellowish lichen , which is similar to Icelandic moss , in their own genus Flavocetraria . The type species is the hooded lichen Flavocetraria cucullata . The name Flavocetraria is derived from the Latin word flavus = yellow and the genus Cetraria . The name Cetraria comes from the Latin word caetra = small, light leather shield and refers to the fact that the storage sections of the Icelandic moss are often shiny brown.

swell

• Wirth, V., M. Hauck and M. Schultz: Die Lichen Deutschlands, Volume 1 , Stuttgart 2013, ISBN 978-3-8001-5903-1

Individual evidence

1. ↑ Zhurbenko, MP; Laursen, GA and Walker, DA (2005) New and rare lichenicolous fungi and lichens from the North American Arctic. - Mycotaxon 92 : 201-212. (Website)
2. ↑ Kärnefelt, Ingvar; Thell, Arne; Randlane, Tiina; Saag, Andres: The genus Flavocetraria Kärnef. & Thell (Parmeliaceae) and its affinities. Acta Botanica Fennica, 150, 1994, pp. 79-86.
3. ↑ Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Birkhäuser, Basel / Boston / Berlin 1996, ISBN 3-7643-2390-6 .

Web links

Commons : Flavocetraria  - collection of images, videos and audio files

• Entry in Mycobank