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The top surface and underside of a lichen<br /> | The top surface and underside of a lichen<br /> | ||
[ | [[File:Foliose lichen top and underneath.jpg|frameless|upright 2.25]]<br /> | ||
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Xanthoria spp. The bowl-like structures are apothecia which produce spores. The fungal partner this lichen reproduces by shedding spores from its splash cups. These yellow splash cups are on the upper surface. In wet conditions, the cup releases its spores and some are carried away on drops of water that splash into it. Once a fungal spore germinates, it needs to combine with a photosynthetic partner before it can form a new lichen.<br /> | Xanthoria spp. The bowl-like structures are apothecia which produce spores. The fungal partner this lichen reproduces by shedding spores from its splash cups. These yellow splash cups are on the upper surface. In wet conditions, the cup releases its spores and some are carried away on drops of water that splash into it. Once a fungal spore germinates, it needs to combine with a photosynthetic partner before it can form a new lichen.<br /> | ||
[ | [[File:Yellow foliose lichen .JPG|frameless|upright 2.25]] | ||
A foliose lichen with fruiting bodies which instead of being tiny cups appear on the curled edges of the body.<br /> | A foliose lichen with fruiting bodies which instead of being tiny cups appear on the curled edges of the body.[[File:Foliose lichen spore cups on edges.JPG|frameless|upright 2.25]]<br /> | ||
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[ | [[File:A green foliose lichen with apothecia.JPG|frameless|upright 2.25]] | ||
A Pseudocyphellaria spp on a fallen branch[ | A Pseudocyphellaria spp on a fallen branch[[File:Foliose lichen on fallen branch Pseudocyphellaria spp-1.JPG|frameless|upright 2.25]]<br /> | ||
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Pseudocyphellaria spp The brown, bowl-like structures are 'apothecia': spore-producing structures that, in some ways, are a lichen's flowers. In wet conditions, the cup releases its spores and some are carried away on drops of water that splash into it. [ | Pseudocyphellaria spp The brown, bowl-like structures are 'apothecia': spore-producing structures that, in some ways, are a lichen's flowers. In wet conditions, the cup releases its spores and some are carried away on drops of water that splash into it. [[File:Foliose lichen Pseudocyphellaria spp-3.JPG|frameless|upright 2.25]] | ||
Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/ | Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/ | ||
Latest revision as of 13:20, 24 September 2019
Foliose lichens
Foliose lichens take their name from the fact that they are vaguely similar to "foliage," or leaves. These have an upper and lower cortex like a sandwich of fungal layers with algae mat in middle. They are generally raised to some extent above the substrate but connected to it by rhizines (Hair like growths that anchor the thallus to its substrate). They are easier to remove from their substrate because of this.
The top surface and underside of a lichen
Xanthoria spp. The bowl-like structures are apothecia which produce spores. The fungal partner this lichen reproduces by shedding spores from its splash cups. These yellow splash cups are on the upper surface. In wet conditions, the cup releases its spores and some are carried away on drops of water that splash into it. Once a fungal spore germinates, it needs to combine with a photosynthetic partner before it can form a new lichen.
A foliose lichen with fruiting bodies which instead of being tiny cups appear on the curled edges of the body.
A Pseudocyphellaria spp on a fallen branch
Pseudocyphellaria spp The brown, bowl-like structures are 'apothecia': spore-producing structures that, in some ways, are a lichen's flowers. In wet conditions, the cup releases its spores and some are carried away on drops of water that splash into it. 
Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/
