▁develop ). ▁As ci ▁are ▁arranged ▁in ▁two ▁rows ▁with ▁thin , ▁smooth ▁walls ; ▁they ▁are ▁initially ▁colour less ▁but ▁become ▁red - b rown ▁with ▁age . ▁The ▁as ci ▁are ▁stored ▁in ▁the ▁h ymen ial ▁cav ity ▁which ▁is ▁often ▁slightly ▁de pressed ▁with ▁a ▁p ink ▁or ▁orange ▁t int . ▁Par aph ys es ▁( m icro scop ic ▁structures ) ▁are ▁long , ▁un branch ed , ▁and ▁sl ender , ▁and ▁can ▁be ▁found ▁l ining ▁por es ▁in ▁the ▁h ymen ial ▁cav ity ▁through ▁which ▁sp ores ▁escape . ▁▁ ▁C occ ot re ma ▁mar it imum ▁lack ▁sor edia ▁and ▁is idia ▁( ve get ative , ▁or ▁sexual ▁re product ive ▁structures ); ▁however , ▁they ▁do ▁possess ▁p yc n idia . ▁Py cn idia ▁are ▁located ▁along ▁the ▁summ its ▁of ▁long ▁w art - like ▁pro jections ▁on ▁the ▁surface ▁of ▁the ▁l ichen , ▁and ▁are ▁pale ▁red - b rown ▁fruit ing ▁bodies ▁l ined ▁with ▁non - mot ile ▁sp ores . ▁ ▁When ▁sp ores ▁are ▁m ature ▁an ▁opening ▁appears ▁at ▁the ▁top ▁of ▁these ▁p ear - sh aped ▁Py cn idia ▁through ▁which ▁these ▁sp ores ▁are ▁released . ▁ ▁Hab itat ▁ ▁C occ ot re ma ▁mar it imum ▁are ▁found ▁on ▁the ▁upper ▁edge ▁of ▁coast al ▁rocks , ▁just ▁above ▁the ▁salt - sp ray ▁zone . ▁They ▁can ▁extend ▁as ▁far ▁as ▁ 7 0