@article {2732, title = {Convolvul{\'a}ceas americanas nuevas o cr{\'\i}ticas III}, journal = {Arquivos do Museu Paranaense}, volume = {9}, year = {1952}, month = {Dezembro 1952}, pages = {207-244}, abstract = {The author publishes as new the following species and varieties: Ipomoea alto-paranaensis, I. Asplundii, I. estrellensis, I. malpighiphila var. Aemilii, I. Piresii and I. santacruzensis. He modifies the rank of the following: I. ramosissima (Poir.) Choisy f. rosea (Hallier) O{\textquoteright}Donell (= I. ramosissima var. rosea Hallier), and I. subtomentosa (Chodat et Hassler) O{\textquoteright}Donell (= I. serpens Meissner var. subtomentosa Chodat et Hassler). He makes the new combinations: Jacquemontia Velloziana (Martius) O{\textquoteright}Donell (= Ipomoea Vellosiana Martius), and Ipomoea grandifolia (Dammer) O{\textquoteright}Donell (= Jacquemontia grandifolia Dammer). He discusses the value of I. batatoides Choisy, I. cynanchifoliaMeissner and I. Regnelii Meissner.}, keywords = {Americas, Ipomoea, Jacquemontia, Neotropics, new species, new variety, tax ref}, author = {O{\textquoteright}Donell, C. A.} }