Английская Википедия:Glaucomaria
Шаблон:Short description Шаблон:Use dmy dates Шаблон:Automatic taxobox
Glaucomaria is a genus of lichen-forming fungi in the family Lecanoraceae.[1] It has seven species. The genus was circumscribed by Maurice Choisy in 1929.[2] It contains crustose lichens formerly placed in the Lecanora rupicola species complex as defined by several previous authors.[3][4][5]
Description
Glaucomaria is characterised by a crust-like (crustose) thallus, which is sometimes spread out with a radiating pattern (Шаблон:Lichengloss). The colour of the thallus ranges from white-yellowish green to pale grey. The apothecia (fruiting bodies) initially grow attached (Шаблон:Lichengloss) and can become slightly raised (Шаблон:Lichengloss) or nearly stalked (substipitate). These apothecia feature a heavily powdery (Шаблон:Lichengloss) Шаблон:Lichengloss that reacts to the C spot test to produce an intense lemon-yellow colour. The margin of the apothecia is persistent, sometimes being pushed aside (finally excluded), and occasionally surrounded by a black, wavy (Шаблон:Lichengloss) ring.[6]
The outer layer of the apothecia (Шаблон:Lichengloss) typically has a Шаблон:Lichengloss cortex (containing hyphal fragments and dead, collapsed algal cells), numerous algal cells, and both large and small crystals, with the latter dissolving in a solution of potassium hydroxide (K). The inner layer (Шаблон:Lichengloss) ranges from thin to thick, dark on the outside and upper part but colourless inside. The Шаблон:Lichengloss (topmost layer of the apothecia) is brown to dark brown with crystals, both the pigment and crystals dissolving in K. The hymenium, the spore-producing layer, is colourless and does not contain oil droplets. The paraphyses (sterile filaments in the hymenium) are slightly thickened at the top. The layer below the hymenium (Шаблон:Lichengloss) is colourless and not interspersed with droplets.[6]
The asci (spore-bearing cells) of Glaucomaria are club-shaped (Шаблон:Lichengloss) and very thin-walled. They contain a tall structure in the middle (Шаблон:Lichengloss) that reacts to iodine and potassium hydroxide by turning blue (K/I+ blue), surrounded by a blue outer layer (Lecanora-type). The Шаблон:Lichengloss are single-celled, hyaline (translucent), ellipsoid, and have a wall less than 1 µm thick. The Шаблон:Lichengloss, the photosynthetic partner of the lichen, is Шаблон:Lichengloss a type of green algae (chlorococcoid).[6]
Chemistry
Glaucomaria contains a variety of compounds including arthothelin, atranorin, chloroatranorin, eugenitol, isoarthothelin, and methyl 3a-hydroxy-4-O-demethylbarbatate. Some species also have sordidone, psoromic acid, thiophanic acid, dichlorlichexanthone, and 2,5,7-trichlornorlichenxanthone. The pruina (powdery substance) on the apothecial disc contains sordidone and occasionally thiophanic acid.[6]
Species
- Glaucomaria bicincta Шаблон:Au
- Glaucomaria carpinea Шаблон:Au
- Glaucomaria leptyrodes Шаблон:Au
- Glaucomaria lojkaeana Шаблон:Au
- Glaucomaria rupicola Шаблон:Au
- Glaucomaria subcarpinea Шаблон:Au
- Glaucomaria swartzii Шаблон:Au
References
- ↑ Ошибка цитирования Неверный тег
<ref>; для сносокCoLне указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокChoisy 1929не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокGrube et al. 2004не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокBlaha & Grube 2007не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокZhao et al. 2015не указан текст - ↑ 6,0 6,1 6,2 6,3 Ошибка цитирования Неверный тег
<ref>; для сносокITALICне указан текст
