Turkish Roemeria hybrida has furnished the new l-benzyltetrahydro-β-car-bolines (—)-roecarboline [1] and (+)-norroecarboline [2], together with the new simple β-car-bolines roeharmine [3] and (-)-1,2,3,4-tetrahydroroeharmine [4]. © 1990, American Chemical Society. All rights reserved.