ⓘ Pleopsidium flavum

                                     

ⓘ Pleopsidium flavum

Pleopsidium flavum is a distinctively colored, bright lemon-yellow to chartreuse crustose lichen that grows in high elevations on vertical or overhanging hard felsic rock in western North America. Its thallus grows in a circular outwardly radiating pattern, with 1mm wide lobed edges. This is the identity of the vivid, lime-green lichens often photographed on granite boulders in the Wichita Mountains Wildlife Refuge of Oklahoma.

It was formerly classified as Acaraspora chlorophana. It is in the genus Pleopsidium of the family Acarosporaceae.

This is similar to Acarospora schleicheri, which grows in soil lichen, and rarely on rock, and Pleopsidium chlorophanum, which contributes to the dry Arctic or Alpine Sandstone rocks and boulders.

                                     
  • differs from Pleopsidium flavum in having a smooth, smaller squamulose thallus and larger apothecia spore producing structures Pleopsidium chlorophanum
  • flavum the golden flax or yellow flax species of flowering plant in the family Linaceae, native to central and southern Europe Pleopsidium flavum
  • Pleopsidium is a genus of lichenized fungi in the family Acarosporaceae. The widespread genus, which contains four species, was circumscribed by lichenologist
  • through Texas and into the Rocky Mountains. It is very similar to Pleopsidium flavum at mid - level mountains, with the latter favoring higher elevations
  • colored Sierra Nevada crustose lichens are the bright yellow Pleopsidium flavum and Pleopsidium chlorophanum, and the orange Caloplaca trachyphylla. Crustose
  • for a particularly photogenic, chartreuse green lichen known as Pleopsidium flavum Portions of the refuge contain scrubby forest of mixed oak varieties