Verbatim text: Phipps, J. B. and K. A. Dvorsky. 2007. Review of Crataegus series Apricae, ser. nov., and C. flava (Rosaceae). J. Bot. Res. Inst. Texas 1: 171–202.
Author: Phipps, J.B., Dvorsky, K.A.
Year: 2007
Title: Review of Crataegus series Apricae, ser. nov., and C. flava (Rosaceae)
Journal: J. Bot. Res. Inst. Texas
Volume: 1
Pages: 171–202