Roccella is a genus of 23 species of lichens in the family Roccellaceae. The genus was circumscribed by Swiss botanist Augustin Pyramus de Candolle in...

several organic compounds. Lichen has been used for centuries to make dyes. This includes royal purple colors derived from roccella tinctoria, also known as...

acidic or basic substances) called litmus is a dye extracted from the lichen Roccella tinctoria ("dyer's weed") by boiling. It gives its name to the well-known...

Roccella albida is a species of saxicolous (rock-dwelling), fruticose lichen in the family Roccellaceae. It is found on the Galápagos Islands. The lichen...

Roccella phycopsis is a species of lichen in the family Roccellaceae. A study of Roccella phycopsis in Tunisia revealed that it contains methyl orcellinate...

Roccella galapagoensis is a species of fruticose lichen in the family Roccellaceae. It is endemic to the Galápagos Islands. First described by the German...

Jonica), a municipality in Calabria, Italy The lichen genus Roccella, known for the species Roccella tinctoria among others Roccellaria This disambiguation...

Roccella gracilis is a species of fruticose lichen in the family Roccellaceae. Flourishing in coastal environments, Roccella gracilia predominantly grows...

some lichens, especially in the Netherlands. Litmus can be found in different species of lichens. The dyes are extracted from such species as Roccella tinctoria...

The following outline provides an overview of and topical guide to lichens. Lichen – composite organism made up of multiple species – a fungal partner...

Ramalina menziesii, the lace lichen or fishnet, is a pale yellowish-green to grayish-green fruticose lichen. It grows up to a meter long, hanging from...

in 1995. He proposed the genus to contain the species originally named Roccella minima by Rolf Santesson in 1944. However, the name was not validly published...

Pentagenella is a genus of lichen-forming fungi in the family Opegraphaceae. It contains five species. Pentagenella corallina (Follmann & Peine) Tehler...

parathecium in an 1898 monograph on the genus Roccella. parmelioid lichen An informal growth form category used for lichens that are mostly foliose, often closely...

Arthoniales. Roccella phycopsis (historically known as Roccella tinctoria) is a common source for litmus, a mixture of dyes extracted from lichens, and the...

Little work has been done on the lichens of Madagascar, so while over 500 species of lichens have been documented, more are expected. Madagascar can be...

from Roccella species. Many lichens have been used medicinally across the world. A lichen's usefulness as a medicine is often related to the lichen secondary...

century. The fungus grows specifically on the thallus of Roccella lirellina, a fruticose lichen. The species epithet reinkellae refers to the genus name...

Expedition. The fungus grows specifically on the thallus of Roccella nigerrima, a fruticose lichen that is endemic to the Galápagos. The species epithet darbishirei...

compound with the formula CH3C6H3(OH)2. It occurs in many species of lichens including Roccella tinctoria and Lecanora. Orcinol has been detected in the "toxic...

polyketide first isolated in 1967 from the lichen Roccella portentosa and has since been extracted from various other lichen. It has exhibited moderate activity...

Schorr [de]. The fungus grows specifically on the thallus of Roccella portentosa, a fruticose lichen commonly found along the rocky Pacific coast. The species...

January 1929. The fungus grows specifically on the thallus of Roccella gracilis, a fruticose lichen. The species epithet imitans (Latin for "imitating" or "mimicking")...

Lichen products, also known as lichen substances, are organic compounds produced by a lichen. Specifically, they are secondary metabolites. Lichen products...

secondary metabolite in lichens. This diterpene is found only in Vermilacinia within the Ramalinaceae, and also in Roccella (Roccellaceae). The following...

ancient Greeks and Hebrews, was made from a Mediterranean lichen called archil or dyer's moss (Roccella tinctoria), combined with an ammoniac, usually urine...

species of lichen, commonly known as "orchella weeds", found in various parts of the world. A major source is the archil lichen, Roccella tinctoria. Orcinol...

naturally occurring pH indicator made from a mixture of lichen species, particularly Roccella tinctoria. The word litmus is literally from 'colored moss'...

Greeks and Hebrews, and was made from a Mediterranean lichen called archil or dyer's moss (Roccella tinctoria), combined with an ammoniac, usually urine...

"Chemical investigation of Indian lichens - Part VIII. Some lichens growing on sandal trees (Ramalina tayloriana and Roccella montagnei)". Proceedings of the...