▁matter ▁might ▁be ▁investig ated ▁by ▁" care ful ▁cultural ▁experiments ". ▁ ▁In ▁ 1 8 7 9 , ▁D . ▁C . ▁E aton ▁( who ▁had ▁since ▁accepted ▁the ▁distinct ness ▁of ▁the ▁species ), ▁suggested ▁that ▁an ▁experiment er ▁should ▁attempt ▁to ▁artificial ly ▁cross ▁A .   eb ene um ▁with ▁Cam pt os orus ▁rh iz oph yll us ▁to ▁see ▁if ▁A .   eben o ides ▁would ▁be ▁produced . ▁This ▁challenge ▁was ▁not ▁taken ▁up ▁until ▁ 1 8 9 8 , ▁when ▁George ▁E . ▁D aven port ▁presented ▁a ▁paper ▁on ▁f ern ▁hy brid ization ▁to ▁the ▁L inn æ an ▁Fern ▁Chapter ▁which ▁mentioned ▁E aton ' s ▁suggestion . ▁Margaret ▁S los son ▁was ▁inspired ▁by ▁D aven port ' s ▁work ▁to ▁undert ake ▁the ▁experiment , ▁as ▁well ▁as ▁attempting ▁a ▁cross ▁between ▁two ▁species ▁of ▁Asp id ium ▁( now ▁D ry opter is ). ▁While ▁her ▁initial ▁attempts ▁were ▁un success ful , ▁S los son ▁was ▁able ▁to ▁report ▁in ▁ 1 9 0 2 ▁that ▁the ▁crossing ▁of ▁A .   eb ene um ▁and ▁Cam pt os orus ▁rh iz oph yll us ▁produced ▁f ern s ▁that ▁were , ▁in ▁all ▁important ▁morph ological ▁characters , ▁identical ▁to ▁A .   eben o ides , ▁prov ing ▁its ▁hy brid ▁character . ▁To ▁acknow ledge ▁its ▁hy brid ▁origin ▁and ▁recognize ▁the ▁genus ▁Cam pt os orus ▁as ▁seg reg ate