lichen
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.commonly called strap lichensField Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, or cartilage lichens.Apothecia are
lecanorine
A lichen has lecanorine fruiting body parts if they are shaped like a plate with a ring around them, and that ring is made of tissue similar to the main non-fruiting body part of the lichen.Field Guide to California Lichens, Stephen Sharnoff, Yale ...
.
Lichen spot test
A spot test in lichenology is a spot analysis used to help identify lichens. It is performed by placing a drop of a chemical on different parts of the lichen and noting the colour change (or lack thereof) associated with application of the chemical ...
s on the cortex are K−, C−, KC+ dark yellow, and P−.
It is in the Ramalinaceae and in the suborder Lecanorineae.
Distribution
The genus has a widespread distribution. A 2008 estimate placed more than 240 species in ''Ramalina''.
Saint Helena
Saint Helena () is a British overseas territory located in the South Atlantic Ocean. It is a remote volcanic tropical island west of the coast of south-western Africa, and east of Rio de Janeiro in South America. It is one of three constitu ...
Scattered Islands
The Scattered Islands in the Indian Ocean (french: Îles Éparses or ''Îles Éparses de l'océan Indien'') consist of four small coral islands, an atoll, and a reef in the Indian Ocean, and have constituted the 5th district of the French Sout ...
Canary Islands
The Canary Islands (; es, Canarias, ), also known informally as the Canaries, are a Spanish autonomous community and archipelago in the Atlantic Ocean, in Macaronesia. At their closest point to the African mainland, they are west of Morocc ...
Norfolk Island
Norfolk Island (, ; Norfuk: ''Norf'k Ailen'') is an external territory of Australia located in the Pacific Ocean between New Zealand and New Caledonia, directly east of Australia's Evans Head and about from Lord Howe Island. Together with ...
Ramalina fraxinea
''Ramalina fraxinea'', the cartilage lichen, is a fruticose lichen with erect or pendulous thalli and branches that are flattened. Colour varies from pale green though yellow-grey to white-grey; apothecia are frequent and soralia may also be p ...
Ramalina siliquosa
''Ramalina siliquosa'', also known as sea ivory, is a tufted and branched lichen which is widely found on siliceous rock (geology), rocks and stone walls on coastlands round the British Isles, occasionally slightly inland. It grows well above th ...