▁growing ▁accept ance , ▁the ▁orig ins ▁of ▁A .   eben o ides ▁were ▁still ▁confused , ▁because ▁of ▁a ▁discovery ▁made ▁in ▁ 1 8 7 3 . ▁A ▁large ▁population ▁of ▁a ▁f ern ▁morph olog ically ▁ind ist ingu ish able ▁from ▁A .   eben o ides ▁was ▁discovered ▁in ▁Hav ana ▁Glen , ▁Alabama ▁by ▁Julia ▁T ut w iler . ▁The ▁cross es ▁between ▁f ern ▁species ▁made ▁by ▁L owe ▁and ▁others ▁had ▁been ▁almost ▁completely ▁ster ile , ▁and ▁sp ores ▁from ▁the ▁original ▁Sch u yl kill ▁plant ▁were ▁imper fect ly ▁formed ▁and ▁proved ▁ster ile , ▁which ▁formed ▁part ▁of ▁Ber keley ' s ▁argument ▁for ▁its ▁hy brid ity . ▁The ▁Hav ana ▁Glen ▁population , ▁in ▁contrast , ▁was ▁too ▁large ▁and ▁contained ▁too ▁many ▁young ▁plants ▁to ▁be ▁ster ile , ▁and ▁on ▁these ▁grounds , ▁Luci en ▁Under wood ▁declared ▁A .   eben o ides ▁to ▁be ▁an ▁independent ▁species ▁and ▁not ▁a ▁hy brid . ▁W . ▁R . ▁Max on , ▁in ▁ 1 9 0 0 , ▁replied ▁to ▁Under wood ▁by ▁arg uing ▁that ▁it ▁might ▁be ▁possible ▁for ▁a ▁fert ile ▁f ern ▁hy brid ▁to ▁exist , ▁and ▁that ▁the ▁scattered ▁distribution ▁of ▁A .   eben o ides , ▁always ▁occurr ing ▁near ▁both ▁of ▁its ▁parent ▁species , ▁and ▁its ▁intermediate ▁morph ology ▁between ▁them ▁all ▁suggested ▁that ▁it ▁was ▁a ▁hy brid . ▁He ▁suggested ▁that ▁the