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Lichen: Cladonia polydactyla

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Cladonia poyldactyla.

Cladonia polydactyla.

Name: Cladonia polydactyla (Flörke) Spreng.

Pronunciation: Cladonia polydactyla

Cladonia poyldactyla: note the shape of the squamules.

Cladonia polydactyla: note the shape of the squamules.

Conservation Evaluation: Least Concern

Body Type: Cladonia -  squamulose

Description: The basal squamules are very small with an orange tint to the base. They may be lightly sorediate and incised. The green-grey to white podetia may reach a height of 3 cm. The cups open out abruptly from the stalk reaching a diameter of 5 mm. Thallus C negative, K positive (yellow), KC negative, Pd positive (orange), UV negative (thamnolic acid).

Chemical Tests: K+ yellow, Pd+ orange, UV-.

Nature Notes: Found on decaying wood, especially tree trunks and old fences. Common on heathland and among mosses.

Vice County distribution map of Cladonia polydactyla: See Map


Link: Map this species on the Lichen Survey

Other species recorded in Ireland

  • Cladonia arbuscula (Wallr. )Flot. [10]
  • Cladonia azorica Ahti
  • Cladonia bellidiflora (Ach.) Schaer.
  • Cladonia caespiticia (Pers.) Flörke
  • Cladonia cariosa (Ach.) Spreng.
  • Cladonia cervicornis (Ach. ) Flot.
  • Cladonia cervicornis ssp. verticillata (Hoffm.) Ahti
  • Cladonia chlorophaea (Flörke ex Sommerf.) Spreng. [11]
  • Cladonia ciliata Stirt.
  • Cladonia ciliata var. tenuis (Flörke) Ahti
  • Cladonia coccifera (L.) Willd. [12]
  • Cladonia coniocraea (Flörke) Spreng.
  • Cladonia cornuta (L.) Hoffm.
  • Cladonia crispata var. cetrariiformis (Delise ex Duby) Vain.
  • Cladonia cyathomorpha Stirt. ex Walt.Watson
  • Cladonia digitata (L.) Hoffm.
  • Cladonia diversa Asperges [13]
  • Cladonia fimbriata (L.) Fr.
  • Cladonia firma (Nyl.) Nyl.
  • Cladonia floerkeana (Fr.) Flörke
  • Cladonia foliacea (Huds.) Willd.
  • Cladonia furcata (Huds.) Schrad.
  • Cladonia furcata ssp. subrangiformis (Sandst.) Abbayes
  • Cladonia glauca Flörke
  • Cladonia gracilis (L.) Willd.
  • Cladonia humilis (With.) J.R.Laundon
  • Cladonia incrassata Flörke
  • Cladonia luteoalba Wheldon & A.Wilson
  • Cladonia macilenta Hoffm.
  • Cladonia ochrochlora Flörke
  • Cladonia parasitica (Hoffm.) Hoffm.
  • Cladonia peziziformis (With.) J.R.Laundon
  • Cladonia pleurota (Flörke) Schaer.
  • Cladonia pocillum (Ach.) Grognot
  • Cladonia portentosa (Dufour) Coem.
  • Cladonia pyxidata (L.) Hoffm.
  • Cladonia ramulosa (With.) J.R.Laundon
  • Cladonia rangiferina (L.) F.H.Wigg.
  • Cladonia rangiformis Hoffm.
  • Cladonia scabriuscula (Delise) Nyl.
  • Cladonia squamosa var. subsquamosa (Nyl. ex Leight.) Vain.
  • Cladonia stereoclada Abbayes
  • Cladonia strepsilis (Ach.) Grognot
  • Cladonia subcervicornis (Vain.) Kernst.
  • Cladonia subulata (L.) F.H.Wigg.
  • Cladonia sulphurina (Michx.) Fr.
  • Cladonia uncialis ssp. biuncialis (Hoffm.) M.Choisy
  • Cladonia zopfii Vain.

Text and images © Paul Whelan, 2009.