Top 20 Most Common Mushrooms in Alcora

Physcia tenella grows initially in small rosettes, which later often flow together like a lawn. The lobules of the thallus are white gray to gray and 0.5 to 1 mm wide. The lobes end flat or in lip-shaped straightened soralen, where vegetative dissemination units (soredia) are formed. These "lip sensory" distinguish them from the otherwise very similar Physcia adscendens (which has helmet-like bulges at the lobes). Gray-white fibrils sit at the edges. Fruit bodies (apothecaries) are rarely trained.

Pseudevernia furfuracea is associated with photobionts from the green algae genus Trebouxia. It reproduces asexually by isidia. The ontogeny of isidia development and its role in CO2 gas exchange in P. furfuracea has been investigated. The preferred growing surfaces for P. furfuracea are the so-called "nutrient poor" bark trees, including birch, pine and spruce. The species has two morphologically identical varieties that are distinguished by the secondary metabolites they produce: var. ceratea Zopf. produces olivetoric acid and other physodic acids, while var. furfuracea produces physodic but not olivetoric acid. Some authors (e.g., Hale 1968) have separated the chemotypes at the species level, designating the olivetoric acid-containing specimens as Pseudevernia olivetorina, but more recent literature separates them at the varietal level.

Hammered shield lichen is noted for its pollution tolerance. It is a widespread grey flat lichen that is mostly found upon tree bark and occasionally rocks. Hammered shield lichen is named for the depressions within the lobe which give it a hammered appearance.

The rosette bearing of Pleurosticta acetabulum can reach up to 25 cm in diameter. The thallus top is dry green to greenish brown to brownish green, moist olive green colored. The underside is blackish and has a brighter strip on the edge, where scattered rhizins sit. Sorale or Isidien are missing. Fruit bodies (apothecaries), however, are common, reach up to 1 cm in diameter and are characterized by a brown disc with a bright, notched edge.

The almost indistinguishable species is a gray-yellow or light to orange-orange, bush-shaped camp with marginal fibrils. However, adhesive fibers are missing. The length of the slightly flattened sections is about 1.5 cm. The frequently formed fruiting bodies (apothecaries) have an orange disc with characteristic eyelashes on the edge and a diameter of 2 to 7 mm. The Photobiont is a member of the green algae genus Trebouxia.

The common greenshield lichen is a familiar species in temperate forests around the world. It can be found growing on rock outcroppings and trees in a wide variety of habitats. Individuals can grow to be quite large and may be gregarious, forming large mats or sheets on suitable surfaces. Like other lichens, the common greenshield lichen will shrivel and harden when moisture is scarce.