Lobaria Pulmonaria

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by amacanovic
Last updated 5 years ago


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Lobaria Pulmonaria

Taxonomy Domain - Eukaryotic Kingdom - Fungi Phylum - Ascomycota Class - Ascomycetes Order - Peltigerales Family - Lobariaceae Genus - Lobaria Species - Lobaria Pulmonaria

What is it?Lobaria pulmonaria is a large epiphytic lichen made up of an ascomycete fungus and a green algae which together form a symbiotic relationship with a cyanobacterium.

Lobaria Pulmonaria(L.P.)

WHAT DOES IT LOOK LIKE?~STRUCTURE & FUNCTION~► Lobaria Pulmonaria is a leaf-like lichen from the Lobariaceae family.► In moist and wet conditions, the upper side of the 'leaf' is green and in dryer conditions it is olive-brown while the bottom side always remains a pale white colour.► Its thallus is made up of a series of ridges and hollows resulting in a distiguishable lobed shape.► Certain LP lobes vary from 8-30mm wide and up to 180mm long.

~ A.K.A.~• Tree Lungwort• Lung Lichen• Lung Moss• Lungwort Lichen• Oak Lungs• Oak Lungwort

Look , it's me!

Fig.1 - Structure of Lobaria Pulmonaria

Habitat & Nutrients○ Laboria Pulmonaria is located throughout the northern hemisphere such as in Africa, Asia, Europe and North America.○ Typically, the L.P. species can be found in the shade on trees, mossy rocks and old wood in forests. ○ The algae portion of the lichen that makes up L.P. is capable of growing well without water as it's being protected from dehydration by the physical structure of the fungus while the fungus cannot transform the sun's energy to itself so it recieves its necessary nutrients through the algae which goes through photosynthesis.

Reproduction, Life Cycle & Dispersal→ Lichens in general are able to reproduce both sexually and asexually.→ However, Lobaria Pulmonaria, even though it is a lichen, reproduces asexually.→ L.P. reproduces through the dispersal of 2 propagules; first, Soredia, which consists of reproductive bodies made up of tiny balls of hyphae (fungal threads). They engulf a couple of photosynthetic cells which are released in the breaks of the thallum cortex. The second propagule, Isidia, is made up of reproductive bodies consisting of little peg like outgrowths which contain both fungal hyphae and photosynthetic cells.→ Generally, lichens grow very slow but L.P. is one of the fastest species, growing at up to 4mm per year.→ Dispersal between the two propogules is said to be very common, occuring by wind, water and small animals that take them to new locations, where if the environment is right, new lichen is formed.

Relationship with Humans- L.P. was used for many medicinal reasons throughout the years: - to treat hemorrhages - eczema - urinary incontinence - asthma - various respiratory disorders- L.P. was also used by Siberian monks around 17th-18th century for making their beer bitter.

Key TermsLichen - Organisms that grow on rocksThallus - The body of a plantCortex - Outer layer of tissueEpiphyte - A plant that grows on anotherAscomycete - Fungus that produces spores in a sacPropagules - Plant or Fungal growth


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