Boreal Oakmoss

(Evernia mesomorpha)

Conservation Status
Boreal Oakmoss
Photo by Luciearl
  IUCN Red List

not listed

 
  NatureServe

NNR - Unranked

 
  Minnesota

not listed

 
           
           
           
           
 
Description
 
 

Boreal Oakmoss is a common and widespread shrubby lichen. It occurs across the globe in the northern latitudes (circumboreal). In the United States it is restricted to the northern tier of states. In Minnesota it is common in the northern third of the state, very common in the Arrowhead region, with only scattered occurrences south to the Metro region. It is found in . It grows on the branches of both deciduous and coniferous trees. It is relatively tolerant of pollution, which allows it to survive near urban areas.

The vegetative body (thallus) is shrub-like (fruticose) and 19 16 to 3 (4 to 8 cm) long. It consists of numerous loosely hanging branches that fork evenly (dichotomously). It looks somewhat like an antler lichen but has broader branches. The branches are 1 64 to 1 16 (0.5 to 1.5 mm) in diameter and soft when wet. They are pliable, not brittle, when dry. The upper and lower surfaces are green, wrinkled, and usually have abundant, coarse, reproductive granules (soredia). These soredia are the main form vegetative reproduction. Disk-shaped sexual reproductive structures (apothecia) are rarely produced.

Boreal Oakmoss is not edible. Handling it may cause severe dermatitis.

 
     
 

Similar Species

 
     
     
 
Biology
 
 

Substrate

 
 

Trees

 
     
 

Growth Form

 
 

Fruticose

 
     
 

Habitat

 
 

Sunny sites in forests and woodlands

 
     
 

Hosts

 
 

Deciduous and coniferous trees

 
     
 
Distribution
 
 

Distribution Map

 

Sources

4, 24, 26, 29, 30, 77.

 
  5/29/2022      
         
 

Occurrence

 
 

Widespread and very common

 
         
 
Taxonomy
 
  Kingdom Fungi (fungi)  
  Subkingdom Dikarya  
  Phylum Ascomycota (sac fungi)  
  Subphylum Pezizomycotina  
  Class Lecanoromycetes (common lichens)  
  Subclass Lecanoromycetidae  
 

Order

Lecanorales  
 

Suborder

Lecanorineae  
 

Family

Parmeliaceae (shield lichens and allies)  
  Subfamily Parmelioideae  
 

Genus

Evernia  
  Mycobiont Evernia mesomorpha  
  Photobiont Trebouxia jamesii (green algae)  
       
 

Synonyms

 
 

Letharia mesomorpha

 
       
 

Common Names

 
 

Boreal Oakmoss

Boreal Oakmoss Lichen

 

 

 

 

 

 

 

 

Glossary

Apothecium

An open, disk-shaped or cup-shaped, reproductive structure, with spore sacs on the upper surface, that produces spores for the fungal partner of a lichen. Plural: apothecia.

 

Fruticose

Shrubby: referring to the growh form of lichens that may be tufted, draped, or stalked.

 

Soredium

The reproductive structure of a lichen consisting of a cluster of algal cells (the photobiont) wrapped in fungal filaments (the mycobiont). Plural: soredia.

 

Thallus

The vegetative body of a lichen composed of both the alga and the fungus.

 
 
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Luciearl

 
    Boreal Oakmoss   Boreal Oakmoss  
           
 
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Other Videos
 
  “Mustache” growing on the trees: Shu Mao Cai (Scientific Name:Evernia mesomorpha)
Dianxi Xiaoge
 
   
 
About

Jul 3, 2019

※Click "cc" on the lower right menu to choose your subtitle language.

Shu Mao Cai (Scientific Name:Evernia mesomorpha) is also called Tree Flowers.
It is a rarely known delicacy,
only available in a few places even within Dianxi.
Boil the Tree Flowers in water with plant ash for a whole hour.
Rinse at least three times to remove its bitterness,
leaving only an intense wooden fragrance and a fresh aroma!
The taste is unforgettable whether it is made into salad or with scrambled eggs!

Hello, everyone! I am Dianxi Xiaoge, a Yunnan native. If you enjoy my videos, please keep subscribing to my channel.
I'll continue to share my life and Yunnan-sytled food in my uploads. Wish you have a happy life and enjoy tasty food every day.
YouTube【滇西小哥 Dianxi Xiaoge】▶https://bit.ly/2MH1T5N
Facebook【滇西小哥 Dianxi Xiaoge】 ▶https://bit.ly/2TsGflr
Instagram【dianxixiaoge_apenjie】▶https://bit.ly/2Wagkze

 

 

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  Luciearl
1/4/2020

Location: Cass County

Boreal Oakmoss  
           
 
MinnesotaSeasons.com Sightings
 
 

 

 

 

 

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Created: 1/17/2020

Last Updated:

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