Is there one?

Nabokov uses mnemonic as an adjective for memory describing an old, faded postcard in The Real Life of Sebastian Knight ("a dream-wide street with droshkies all awry under incredibly blue skies, which, farther away, melt automatically into a pink flush of mnemonic banality"), though, if you are going to pick nits, it's not quite on the nose. The nostalgic reminiscential won't do either. I realise memory itself is used as an adjective at times. Are there other options? If you ask me, memorial sorely wants a third sense.