Galindon, J.M.M., Penneys, D.S., Lagunday, N.E., Tandang, D.N., Coritico, F.P., Amoroso, V.B. & Fritsch, P.W. (2021)

Hypericum perryongii (Hypericaceae), a new species from Philippines

. Phytotaxa 478 (1): 61–66. https://doi.org/10.11646/phytotaxa.478.1.4