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The spores are divided into two cells by a central wall and measure 60–105 by 25–60 micrometres, with a distinctive net-like (reticulation) pattern on their surface. [ 5 ] Like other lichens, S. lbispora is a symbiotic organism containing photosynthetic partners: its primary photobiont is a green alga ( Coccomyxa ), while it also contains ...
Graphis scripta is a crustose lichen in the family Graphidaceae. It is commonly called script lichen, secret writing lichen, or similar names, because its growth pattern makes it looks like writing. [1] [2] Stigmidium microspilum and Arthonia graphidicola are associated lichenicolous fungi. [2] It is variable with either curved or stellate ...
With the exception of calicioid lichens, lichen growth forms are based on the appearance of the thallus, which is the vegetative (non-reproductive) part of the lichen. [5] In most species, this form is determined by the lichen's fungal partner, though in a small number, it is instead the alga or cyanobacteria (the lichen's photosynthetic ...
Chrysothrix is a genus of lichen-forming fungi in the family Chrysotrichaceae. [3] They are commonly called gold dust lichens or sulfur dust lichens, [4]: 253 because they are bright yellow to greenish-yellow, sometimes flecked with orange, and composed entirely of powdery soredia. [5] Apothecia are never present in North American specimens. [5]
Chrysothrix candelaris, commonly known as the mustard powder lichen [1] or gold dust lichen, [2] is a species of leprose (powdery) lichen in the family Chrysothricaceae. It typically grows on tree bark , although it has also been recorded growing on rock .
The lichen is composed of two thalli; an initial primary squamulose thallus growing across bark in a scaly, flaking pattern, followed by a secondary fruticose thallus (), with cup shaped podetia (4-10cm tall) bearing terminal ascocarps contained in apothecial structures.
Hypogymnia physodes, commonly known as the monk's-hood lichen, is a species of foliose lichen in the family Parmeliaceae. It is a common and widespread species in boreal and temperate forests of the Northern Hemisphere. It has a grey to yellowish-green thallus that is loosely attached to its substrate and forms large irregular patches. Hollow ...
Scytinium encompasses lichen species that exhibit a variety of thallus forms, such as crustose, squamulose, minutely foliose, or minutely shrubby. These lichens have a gelatinous texture, and their colour ranges from dark brown and bluish-grey to olive-green. The lobes of Scytinium can be spreading, elongate, or somewhat cylindrical in shape.