D aut zen berg , ▁ 1 9 0 0 ) ▁ ▁Dr ill ia ▁cla v ata ▁G . ▁B . ▁S ower by ▁II , ▁ 1 8 7 0 : ▁syn onym ▁of ▁C lav us ▁cla v ata ▁( G . ▁B . ▁S ower by ▁II , ▁ 1 8 7 0 ) ▁▁ ▁Dr ill ia ▁c ly d onia ▁Mel v ill ▁& ▁Stand en , ▁ 1 9 0 1 : ▁syn onym ▁of ▁S pl end r ill ia ▁c ly d onia ▁( M el v ill ▁& ▁Stand en , ▁ 1 9 0 1 ) ▁ ▁Dr ill ia ▁col lar is ▁( G . B . ▁S ower by ▁I , ▁ 1 8 3 4 ): ▁syn onym ▁of ▁P ils b ry sp ira ▁col lar is ▁( S ower by ▁I , ▁ 1 8 3 4 ) ▁▁ ▁Dr ill ia ▁comment ica ▁Hed ley , ▁ 1 9 1 5 : ▁syn onym ▁of ▁Micro dr ill ia ▁comment ica ▁( H ed ley , ▁ 1 9 1 5 ) ▁ ▁Dr ill ia ▁conf usa ▁Seg uen za , ▁G ., ▁ 1 8 8 0 : ▁syn onym ▁of ▁S pi rot rop is ▁conf usa ▁( Seg uen za , ▁ 1 8 8 0 ) ▁ ▁Dr ill ia ▁con soci ata ▁( Smith ▁E . A ., ▁ 1 8 7 7 ): ▁syn onym ▁of ▁Cr ass is