Transcript Pholiota squarrosa

Pholiota squarrosa
Phylum Basidomycota
Class Basidomycetes
Order Agaricles
Family Strophariaceae
http://www.usask.ca/biology/kaminskyj/342/pictures/13Sep04/DSCN0026.JPG
Macroscopic
• Cap: convex, scaly, yellow to yellow brown, 5-15cm
broad
• Gills: adnate to subdecurrent, yellowish when young,
greenish-brown with age
• Stipe: colour same as cap, annulus present, scaly, up to
12cm tall, 1.5-2.5cm thick
• Habitat: clusters on dead logs and
stumps
Taste and odour: radish like
http://www.usask.ca/biology/kaminskyj/342/pictures/13Sep04/DSCN0032.JPG
Microscopic
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Spores: smooth, elliptical
Spore print: rusty brown
# of sterigmata= 2
Basidia length to width
ratio less than 4:1
http://www.cx.sakura.ne.jp/~kinoko/phots7_stu2/sugitake_sp.jpg
http://www.usask.ca/biology/kaminskyj/342/pic
tures/21Sep04_lab/DSCN0022.JPG
Edibility
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Was though to be edible
Recently know to be toxic
Reaction when consumed with alcohol
Gastrointestinal reaction with 1 hour
Symptoms included nausea, vomiting etc.
http://ifff.boku.ac.at/Phytopathologie/D
Symptoms last 24-48 hours
ias/Armillaria_mellea_3.jpg
Can be confused for Armillaria mellea (Honey Fungus)
and P. squarrosoides
www.namyco.org/photography/DDennis/Pholiota_s
quarrosoides.jpg
http://www.usask.ca/biology/kaminskyj/342/pictures/13Sep04/DSCN0029.JPG
Damaging
• P. squarrosa is mycorrhizal with aspen, birch, and
conifers
• Necrotrophic parasites
• Will kill a tree and live on dead wood as a saprophyte
• Causes butt rot in aspens
http://www.na.fs.fed.us/spfo/pubs/fidls/decay/decay_fig4.jpg
Medical uses
• Anti-H-like aggutinins which agglutinated strongly with O
type RBC’s were found in the extracts of P. squarrosa
• Agglutination- the clumping together of RBC or bacteria,
usually in a response to a particular antibody.
(Dictionary.com)
http://academic.sun.ac.za/haema/dept/aggl.JPG