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Trentepohlia (alga)
In botany, Trentepohlia is a genus of filamentous green chlorophyte algae, specifically of the family Trentepohliaceae, living free on terrestrial supports such as tree trunks and wet rocks or symbiotically in lichens.[1] The filaments of Trentepohlia have a strong orange colour (photograph at right) caused by the presence of large quantities of carotenoid pigments which mask the green of the chlorophyll. This colour was found to be the source of an incident of red rain in Kerala, India. Trentepohlia species form associations with fungal hyphae, and are widespread phycobionts in lichens, such as the "secret writing" crustose lichen genera Graphis, Graphina, Gyalecta and Opegrapha
Spotted in river Homem félinhos beach,in a oak
Spotted on Dec 2, 2012
Submitted on Dec 19, 2012
5 Comments
no problem it's good practice and I like your spottings!
Thanks Rat.tumour aka lipase,i search Arland tip and i dont change the id because from the images i saw it dont look like a Candelariella xanthostigma,so i'am going to search based on your tip to see if i find a mach,thanks for you support :-)
Maybe Trentepohlia sp. is a possibility too.
Thanks Arlanda for the id,the real colour is more orange than yellow so i think is the same
It looks like a lichen, e.g., Candelariella xanthostigma, but this one is yellow, not reddish