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[9] Lichen morphology – a lichen's external appearance and structures are very different than those of its individual partners. [10] Ascocarp – the fruiting body of a lichen, which contains the asci. [11] Ascus (pl. asci) – a sexual, fungal spore-bearing structure, typically sac-like in shape. [12]
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English: This is a cross section of lichen, which is an organism in a symbiotic relationship between green algae and fungus. 1. Thick layers of hyphae, called the cortex 2. Green algae 3. Loosely packed hyphae 4. Anchoring hyphae called rhizines. Lichen is an organism that is composed of two separate organisms living in a symbiotic relationship.
Moreover, surface area also influences photosynthetic rates. In high sunlight conditions, foliose lichens with broad lobes are prevalent. [8] In comparison, crustose lichens have less surface area than foliose lichens and will tend to have slower photosynthetic rates. Generally, higher levels of sunlight promote growth of the crustose lichens.
Lichenometry relies upon the fact that the maximum diameter of the largest thallus of an epilithic lichen growing on a substrate is directly proportional to the time from first exposure of the area to the environment as seen in studies by Roland Beschel [24] in 1950 and is especially useful in areas exposed for less than 1000 years. Growth is ...
There are several treatments for lichenification. If affected skin is left alone, the ailment can slowly go away on its own. However, due to the itch-scratch-cycle, this method is not very common. [5] Generally, lichenification is treated with topical steroids and moisturizers, [6] but remedies including light-therapy and acupuncture are noted ...
A foliose lichen is a lichen with flat, leaf-like lobes, which are generally not firmly bonded to the substrate on which it grows. It is one of the three most common growth forms of lichens. It typically has distinct upper and lower surfaces, each of which is usually covered with a cortex ; some, however, lack a lower cortex.
Rhizocarpon geographicum (the map lichen) is a species of lichen, which grows on rocks in mountainous areas of low air pollution. Each lichen is a flat patch bordered by a black line of fungal hyphae. These patches grow adjacent to each other, leading to the appearance of a map or a patchwork field.