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A yellae crottle

Crottle is a symbiotic jynin o a fungus (the mycobiont) thegither wi a photaesynthetic pairtner (the photaebiont), thit is aither an algae or cyanobacteria that maks fuid fer the mycobiont frae sunlicht whiles the photaebiont is protectit bi the filaments o the crottle.

Crottles kivers aroond 7% o the warld's surface, bidin in a range o pairts, incluidin the maist extreme places on the yird[1]. Crottles is fand maist tae growe on stanes, stane-dykes an trees.

In the bygane mony ferm an cot-hooses haed their ain baurel o graith, or maister (ammoniac), in a lit pig, for tae mak reid or purpie lit fer tae dye thir claes.

Taxonomie[eedit | eedit soorce]

Crottles is a kynd o organism thit is kent as polyphyletic, meanin that it is fand in mony sindry phyla o the fungus kinrick, wi ilka faimly descendit o a sindry ancestor[2].

References[eedit | eedit soorce]

  2. Nash, Thomas H. (1996). Lichen biology. Cambridge University Press. ISBN 0-521-45974-5.