La familia Apocynaceae s. str. (Apocynoideae, Rauvolfioideae) en Uruguay

a treatment of the apocynaceae s. str. (apocynoideae, rauvolfioideae) from uruguay is presented here. ten species from seven genera are recognized: aspidosperma quebracho-blanco, condylocarpon isthmicum, forsteronia glabrescens, mandevilla coccinea, m. emarginata, m. longiflora, m. petraea, rhabdadenia madida, tabernaemontana catharinensis, vinca major. descriptions, keys, distributional data and specimens examined are included. lectoypes are selected for dipladenia xanthosoma var. major, echites emarginatus, e. erectus, e. grandiflorus var. minor , e. pinifolius, laseguea erecta var. guilleminia f. griseo-olivacea, l. erecta var. obliquinervia f. ovata subf. griseo-fusca and subf. griseo-olivacea, l. guilleminiana, macrosiphonia verticillata var. intermedia, m. verticillata var. peduncularis, m. pinifolia f. glabrata and m. pinifolia f. setosa. a neotype is designated for aspidosperma quebracho-blanco.