Top 20 Most Common Mushrooms in Les Lilas

D. canescens is a crustose lichen with lobed margins a growth type known as "placodioid". It grows in rosettes up to 6 cm (2.4 in) across. The thallus which can range in color from white to very pale gray is typically darker in the center and very white-pruinose on the marginal lobes. These lobes are convex becoming wider at the tips – up to 1 mm (0.04 in) wide. The center of the thallus is generally covered with soralia which are flour-like and pale to slightly yellow in color. The photobiont of D. canescens is a green algae (chlorococcoid). Like many lichens D. canescens disperses primarily by means of symbiotic vegetative propagules; most are covered with extensive mats of soralia. Apothecia are rare but where they occur are black lecideine (meaning that they have no thalline margin) and measure 0.3–1 mm (0.01–0.04 in) in diameter. Each ascus contains eight spores. Each spore is brown with a cell wall (called a septum) that divides it into two cells; it measures 10–15 μm (0.0004–0.0006 in) x 5–8 μm (0.0002–0.0003 in). Observations in Ireland found apothecia only between the months of summer and winter. The production of spores increased over that time period with peak germination occurring in fall.

Lecidella elaeochroma is a crust lichen, which means that its stock (Thallus) lies closely on the surface. The camp is whitish, gray, gray-green, olive or yellowish. Often it is also damaged by snail-eating and then greenish. The structure of the camp is smooth to grainy. Often it is weakly glossy or even limited by a black submission. The camp can sometimes be sorediös dissolved. It reaches diameter of 1 to 3 cm. The apothecia reach between 0.4 and 1.0 mm in diameter. Their discs are black to dark reddish brown and very rarely frosted. The Apotheciens are flat to strongly arched and can be deformed. Its edge is black and smooth. Overall, the appearance of this lichens is very rich in form.

The deposits of Parmotrema perlatum reach up to 20 cm in diameter. The thallus top is in a dry state pearl gray, moist greenish. It has black cilia on the edges. The underside is black, with unbranched rhizins and a brownish colored zone on the edge. Especially at the edges she wears sorals, in which the soredien (asexual propagules) are formed. Fruit bodies (Apothecia) are very rare.

Farinose cartilage lichen has a bushy appearance and is easy to identify by its long, slender branches. The reproductive structures are often scattered on the fungi. The lichen thrives in warm moist, mixed forests, forming on second-growth trees and shrubs.

The distinctively-striped turkey tail fungus grows on stumps and logs all over the forests of the northern hemisphere. It is, in fact, probably the most common species you will find. That doesn't mean this mushroom is plain, however; each cap is uniquely patterned. Look for bands of alternating textures as well as color.

Trumpet branch moss is attached to the bark, usually on the sun side, of the tree with a central foot. The flattened, hollow, striped, irregularly shaped lobes are 2 - 3 cm long. The thalli are gray or, when wet, green and covered with small light spots (fenestrae = small windows). The top and bottom have the same color. They have no sorals.

This large, tough shelf fungus can be found attached to birch, beech, and sycamore trees. It gets its common name, tinder fungus, from the fact that it burns quite slowly and can thus be used effectively for lighting fires. Dried pieces can also be a useful desiccant. A piece of this fungus was found in the possession of Otzi the Iceman, indicating that its usefulness has been known for millenia.