Buxus papilosa C.K. Sahneider (Buxaceae), of Pakistani origin, has yielded the new alkaloids (+) -buxabenzamidienine (1), (+)-16α-acetoxybuxabenzamidienine (2), (+)-buxotrienine (3), (-)-buxanoldine (4), and (+)-buxanaldinine (5). Six generalizations have been drawn which relate specific rotations to structural features. © 1986.