WebLichen planus is a condition that causes skin inflammation. The resulting rash can affect the skin on your arms, legs, scalp, nails, genital area and the inside of your mouth. For most … Web10/24/2014 Learning Lichens. Lesson 2: Lichen Structure Lab* Objectives: ... Describe the structure and function of these lichen parts: a. Thallus . b. Photobiont (algae or cyanobacteria) c. Cortex . d. Medulla . e. Rhizine 1 . 10/24/2014 : Learning Lichens: 4. Examine a sample of each of the three main growth forms of lichen (crustose, foliose, or

Reproductive Structures - Lichen website

Web(a) Structure of the Apothecium (Fig. 20.10 A): Whatever its form, the apothecium from outside is usually seen to consist of two parts, namely, the disc and the margin. (i) Disc of the apothecium: It is the fertile portion of the apothecium. In many lichens it is soft and bright in colour and in others hard and black. WebIn order to help organize the lichens for identification, they are categorized by growth form of the thallus (vegetative body of the lichen). There are four major growth forms — … dusty beane service master

Reproductive Structures - Lichen website

WebInternal Structure As per the diversity of basic growth, lichens have an identical internal morphology. The filaments of the fungal partner form … WebThe lichen’s appearance and structure are largely determined by the genetic makeup of the fungus that is generally considered the dominant organism. The lichen genus name is normally the same as the specific … WebErik Acharius, known as the "father of lichenology," coined many lichen terms still in use today around the turn of the 18th century.Before that, only a couple of lichen-specific terms had been proposed. Johann Dillenius introduced scyphus in 1742 to describe the cup-shaped structures associated with genus Cladonia, while in 1794 Michel Adanson used … dusty beards custom creations