ros se ▁County , ▁Wisconsin ▁Category : Un in cor por ated ▁communities ▁in ▁Wisconsin <0x0A> </s> ▁A ▁squ am ul ose ▁l ichen ▁is ▁a ▁l ichen ▁that ▁is ▁composed ▁of ▁small , ▁often ▁over la pping ▁" scal es " ▁called ▁squ am ules . ▁If ▁they ▁are ▁raised ▁from ▁the ▁substr ate ▁and ▁appear ▁leaf y , ▁the ▁l ichen ▁may ▁appear ▁to ▁be ▁a ▁fol io se ▁l ichen , ▁but ▁the ▁unders ide ▁does ▁not ▁have ▁a ▁" sk in " ▁( cor tex ), ▁as ▁fol io se ▁l ich ens ▁do . ▁ ▁S qu am ul ose ▁l ich ens ▁are ▁composed ▁of ▁fl att ish ▁units ▁that ▁are ▁usually ▁tight ly ▁cluster ed . ▁They ▁are ▁like ▁an ▁intermediate ▁between ▁cr ust ose ▁and ▁fol io se ▁l ich ens . ▁ ▁Ex amples ▁of ▁squ am ul ose ▁l ichen ▁include ▁V ah li ella ▁le uc op ha ea , ▁Cl ad onia ▁sub cer vic orn is ▁and ▁L ichen om phal ia ▁h ud son iana . ▁ ▁References ▁ ▁Category : L ichen ology <0x0A> </s> ▁Edward ▁Sand ers ▁F oster ▁( M arch ▁ 2 8 , ▁ 1 9 4 9 ▁– ▁July ▁ 2 6 , ▁ 2 0 0 8 ) ▁was ▁an ▁American ▁column ist ▁for ▁Info World , ▁best ▁remembered ▁for ▁his ▁G rip el og ▁column ▁in ▁Info World , ▁and ▁his ▁work ▁oppos ing ▁U C IT A . ▁F oster