[1]
Li, G. and Fritsch, P.W. 2018. A taxonomic revision of taxa in Styrax series Cyrta (Styracaceae) with valvate corollas. Journal of the Botanical Research Institute of Texas. 12, 2 (Nov. 2018), 579–641. DOI:https://doi.org/10.17348/jbrit.v12.i2.962.