Jacquemontia (Convolvulaceae) in Bolivia and Peru

A taxonomic account of Jacquemontia Choisy in Bolivia and Peru is presented. All recognised species from the two countries are described and their distribution, ecology and conservation status are outlined. Separate keys to the species occurring in each country are also provided. All species are mapped and illustrated with line drawings and/or photographs. Five new species, Jacquemontia boliviana J.R.I.Wood, J. chuquisacensis J.R.I.Wood, J. cuspidata J.R.I.Wood, J. longipedunculata J.R.I.Wood and J. mairae J.R.I.Wood & R.Clegg are described from the Andes of Bolivia. Taxonomic notes are provided for many species, J. heterantha Nees & Mart. is treated as a synonym of J. cumanensis (Kunth) Kuntze and J. prominens Helwig of J. unilateralis (Roem. & Schult.) O'Donell. Lectotypes are chosen for Convolvulus agrestis Mart. ex Choisy, C. mucronatus Benth., Ipomoea selloi var. rufescens (Meisn.) Hallier f., Jacquemontia acuminata Rusby, J. azurea var. alba Seeman, J. corymbulosa Benth., J. densiflora Rusby, J. guayaquilensis Meisn., J. pedunculata Rusby, J. sphaerocephala Meisn. and J. violacea var. densiflora Meisn.