lichen display

Related literature on Placopsis gelida
habitat: mixed conifer and deciduous forest, Other lichen in the same habitat

Characteristics of Placopsis gelida (L.) Lindsay

  • Soredia: scattered over upper surface
  • Lobules: no
  • Isidia: no
  • Podetia: no
  • Reproductive Body: apothecium brown
  • Body Type: crustose
  • Unstratified: no
  • Life Form: lobes tightly appressed
  • Hollow lobes: no
  • Central cord: no
  • Lobe shape: rounded
  • Rhizines:
  • Cilia margin: no
  • Simple perforate: no
  • Cyphellae: no
  • Pseudocyphellae: no
  • Lobe Color, inside: white
  • Lobe Color, underneath:
  • Surface Color: grayish-brown
  • Surface texture: granular
  • Wrinkles:
  • Cephalodia: yes external pockets
  • Papillae: no
  • Fibrilles on Branches: no
  • Spore type: septate
  • Spore size (um): 12 - 20 X 6 - 13 um
  • Lobe Width: 5 mm to 10 mm
  • Lobe Range Width:
  • Medullar C Reaction: positive red
  • Medullar K Reaction: negative
  • Medullar KC Reaction: positive red
  • Medullar P Reaction: positive red
  • Areolate: cracked surface on substrate
  • Algae: both bluegreen and green
  • Iodine Test:
  • Cortex C: positive red
  • Cortex K: ambiguous
  • Cortex P:
These lichen pages provided with NSF funding and in association with
Northwest Alliance for Computational Science and Engineering
School of Electrical Engineering and Computer Science, Oregon State University
and
Dept of Botany and Plant Pathology, Oregon State University
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