Acknowledgements
The authors are grateful to the Foundation for Science and Technology
(FCT, Portugal) for C. Caleja (SFRH/BD/93007/2013) and L.
Barros (SFRH/BPD/107855/2015) grants. The authors also thank
Ms Clarinda Paixão, from Américo Duarte Paixão Lda, Portugal,
for providing the plant samples.