For Trachelospermum
Endress, M.E., U. Meve, D.J. Middleton, and S. Liede-Schumann. 2018. Apocynaceae. In Kadereit, J., & V. Bittrich. 2018. The families and genera of flowering plants. XV. Flowering plants. Eudicots. Apiales, Gentianales (except Rubiaceae). Springer, Cham.
Livshultz, T., D.J. Middleton, M.E. Endress, and J.K. Williams. 2007 Phylogeny of Apocynoideae and the APSA clade (Apocynaceae s.l.). Ann. Mo. Bot. Gard. 94: 324-359.