Correction to: Scientific Reports https://doi.org/10.1038/s41598-019-44746-7, published online 11 June 2019

The reference lists were omitted from the Supplementary Information file originally published with this Article. The Supplementary Information file has now been replaced.

In addition, this Article contained an error in the Introduction.

“Studies with R. bifida plants15,20 indicate that 11-hydroxyvittatine (25) (haemanthamine ring system) is formed by the addition of a hydroxyl group to the vittatine (13).”

now reads:

“Studies with R. bifida plants15,20 indicate that 11-hydroxyvittatine (26) (haemanthamine ring system) is formed by the addition of a hydroxyl group to the vittatine (13).”

This error has now been corrected in the HTML and PDF versions of the Article.