▁commonly ▁called ▁mouse ▁ears ▁or ▁felt ▁l ich ens , ▁and ▁are ▁small , ▁pale ▁brown ▁to ▁o live - b rown ▁fol io se ▁cy an ol ich ens ▁with ▁a ▁f uz zy ▁upper ▁surface ▁that ▁have ▁the ▁cy an ob acter ia ▁S cy ton ema ▁as ▁their ▁phot ob ion t . ▁ ▁Most ▁species ▁are ▁found ▁in ▁the ▁trop ics ▁of ▁Central ▁and ▁South ▁America , ▁although ▁three ▁species ▁are ▁found ▁in ▁coast al ▁regions ▁of ▁North ▁America ▁where ▁they ▁generally ▁grow ▁on ▁m oss y ▁branches ▁in ▁hum id ▁sites . ▁ ▁All ▁North ▁American ▁species ▁are ▁rare , ▁and ▁two ▁of ▁them , ▁E ri oder ma ▁m oll iss imum ▁and ▁E ri oder ma ▁p edic ell atum , ▁are ▁listed ▁as ▁end anger ed ▁by ▁the ▁Committee ▁on ▁the ▁Status ▁of ▁End anger ed ▁Wild life ▁in ▁Canada ▁( CO SE W IC ). ▁ ▁E ri oder ma ▁p edic ell atum ▁is ▁also ▁listed ▁as ▁crit ically ▁end anger ed ▁on ▁the ▁IU CN ▁Red ▁List ▁of ▁Th re aten ed ▁Species . ▁ ▁Species ▁of ▁E ri oder ma ▁can ▁res emble ▁P ann aria , ▁Le iod er ma , ▁or ▁small ▁P elt ig era , ▁but ▁their ▁f uz zy ▁upper ▁surface ▁and ▁lack ▁of ▁ve ins ▁on ▁their ▁lower ▁surface ▁distingu ishes ▁them ▁from ▁these ▁l ich ens . ▁ ▁References ▁ ▁Category : P elt iger ales ▁Category : L ich ens ▁Category : L