Search result Arthoniales

2565929

Right Managed

© Jean-Philippe Delobelle / Biosphoto

Ivy and Roccella phycopsis on granite. A thermophilic saxicolous fruticose lichen of rocky overhangs. Some species of the Roccella genus are among the very few lichens to have been given a generic vernacular name in French for their dyeing properties: they are known as orseilles. Gulf of Ventilegne.

2565928

Right Managed

© Jean-Philippe Delobelle / Biosphoto

Roccella fuciformis on granite in southern Corsica. A thermophilic saxicolous fruticose lichen of rocky overhangs. Some species of the Roccella genus are among the very few lichens to have been given a generic vernacular name in French for their dyeing properties: they are known as orseilles.

2565927

Right Managed

© Jean-Philippe Delobelle / Biosphoto

Roccella tinctoria on granite at Roccapina (South Corsica). A thermophilic saxicolous fruticose lichen of rocky overhangs. Certain species of the Roccella genus are among the very few lichens to have been given a generic vernacular name in French for their dyeing properties: they are known as orseilles.

2551590

Right Managed

© Jean-Philippe Delobelle / Biosphoto

Lichens foliacés ombiliqués sur des schistes dans les Cévennes, Umbilicaria crustulosa (lichen lépreux jaune : chrysothrix ), Mont Aigoual, Cévennes, France

2547927

Right Managed

© Jean-Philippe Delobelle / Biosphoto

Orchilla lichen (Roccella canariensis) on the island of El Hierro (Canary Islands). Roccella canariensis is a fruticose lichen of the Roccellaceae family known as Orchilla from which a natural dye used for the colour purple is extracted (orcein). It grows on the Canary Islands, on cliffs exposed to the trade winds, and was particularly prized by the Romans and by Genoese and Venetian cloth merchants in the 15th century. It was one of the main historical exports of the Canary Islands. El Hierro

2547794

Right Managed

© Jean-Philippe Delobelle / Biosphoto

Orchilla lichen (Roccella canariensis) on a cliff in the Anaga Peninsula. Roccella canariensis is a fruticose lichen of the Roccellaceae family known as Orchilla from which a natural dye used for purple colouring is extracted (orcein). It grows on the Canary Islands, on cliffs exposed to the trade winds, and was particularly prized by the Romans and by Genoese and Venetian cloth merchants in the 15th century. It was one of the main historical exports of the Canary Islands. Anaga Peninsula - Tenerife Island

2547793

Right Managed

© Jean-Philippe Delobelle / Biosphoto

Orchilla lichen (Roccella canariensis) and Ramalina on the island of Tenerife (Canary Islands). Roccella canariensis is a fruticose lichen of the Roccellaceae family known as Orchilla from which a natural dye used for purple colouring is extracted (orcein). It grows on the Canary Islands, on cliffs exposed to the trade winds, and was particularly prized by the Romans and by Genoese and Venetian cloth merchants in the 15th century. It was one of the main historical exports of the Canary Islands. Anaga Peninsula - Tenerife Island

2485421

Right Managed

© Arterra/Sven-Erik Arndt / imageBROKER / Biosphoto

Sulphur dust lichen, greenish gold dust lichen (Chrysothrix chlorina) on sandstone rocks

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