▁important ▁to ▁Native ▁Americans ▁and ▁were ▁recorded ▁in ▁their ▁leg ends . ▁For ▁example , ▁the ▁P omo ▁people ▁used ▁them ▁in ▁their ▁cle ans ing ▁cer emon ies . ▁▁ ▁Alb ino ▁red wood s ▁are ▁generally ▁regarded ▁as ▁par as it ic ▁plants , ▁but ▁as ▁of ▁ 2 0 1 6 ▁one ▁research er ▁spec ul ates ▁that ▁they ▁are ▁supported ▁by ▁other ▁trees ▁for ▁their ▁role ▁in ▁storing ▁to xic ▁heavy ▁met als . ▁Al bin os ▁apparently ▁accum ulate ▁more ▁met als ▁than ▁normal ▁trees ▁because ▁defect ive ▁st om ata , ▁which ▁cause ▁them ▁to ▁lose ▁more ▁water ▁through ▁trans p iration , ▁force ▁them ▁to ▁compens ate ▁by ▁taking ▁up ▁more ▁water ▁through ▁their ▁roots . ▁ ▁Six ▁phen ot ypes ▁of ▁alb ino ▁red wood ▁have ▁been ▁class ified : ▁white , ▁bright ▁yellow , ▁cell ular ▁v ires cent ▁green , ▁pale ▁green , ▁m ott led ▁and ▁non ch imer ic ▁var ieg ated . ▁Such ▁mut ants ▁can ▁be ▁either ▁bas al ▁( g row ing ▁from ▁a ▁b url ▁at ▁the ▁base ▁of ▁a ▁ ▁tree ) ▁or ▁aer ial ▁( branch ing ▁off ▁from ▁a ▁tree ▁above ▁the ▁ground ). ▁The ▁bright ▁yellow ▁form ▁is ▁exclus ively ▁aer ial ▁and ▁is ▁thought ▁to ▁be ▁associated ▁with ▁excess ▁x anth oph yll ▁production . ▁The ▁pale ▁green ▁form ▁la cks ▁just ▁one ▁specific ▁type ▁of ▁ch lor oph yll ▁and ▁is ▁almost ▁always ▁bas al . ▁Cell ular ▁v ires cent