Ipomoea batatoides Choisy, Mém. Soc. Phy. Genève

A. P. S, Lima, M. T. A., Buril & Melo, J. I. M. de, 2024, Synopsis of Ipomoea (Convolvulaceae) in the state of Paraíba, Brazilian Northeastern, Rheedea 34 (5), pp. 430-456 : 441

7. Ipomoea batatoides Choisy, Mém. Soc. Phy. Genève 8: 58. 1837. Fig. 4h

Flowering & fruiting: Flowering from May to September; fruiting to May.

Distribution: Distributed from Mexico to South America ( Wood et al., 2020). In the Brazilian territory it is found in Center-West, North and Northeast, in the Amazon, Caatinga, Cerrado and Atlantic Forest domains ( Simão-Bianchini et al., 2024). In Paraíba, we considered as “possibly extinct” because the last collection was made 30 years ago, in the IRs of Campina Grande and João Pessoa in areas of Atlantic Forest.

Specimens examined: BRAZIL, Areia, Escola de Agronomia do Nordeste , 18.05.1953, fl. & fr., J . C .

Moraes 739 (RB, digital image!). Mamanguape,

Cabeceira do Rio dos Patos, Sema I, 01.09.1989 ,

fl., L.P. Felix 2238 (EAN, JPB!).

Notes: This liana can be confused with I. blanchetii and I. mauritiana for being completely glabrous to glabrescent, with sepals convex, subequal, convex (equal in shape, but the inner slightly different in size), oblong-orbicular, apex rounded to obtuse, the surface smooth, and corolla infundibuliform with stamens included. It can be distinguished by its simple, leaves entire leaves with a cordate to oval blade, a rare 2-dentate base (vs. deeply 3-palmatilobated in I. blanchetii , and deeply 5–7-pamatilobated in I. mauritiana ), it also shares with I. mauritiana the pink corolla with a purplish mouth (vs. entirely purplish, sometimes with a whitish tube, in I. blanchetii ).

Figures

Fig. 4. a-b. Ipomoea acanthocarpa (Choisy) Hochst. ex Schweinf. & Asch.: a. Calyx; b. Fruit. c-e. I. aristolochiifolia G.Don; c. Reproductive branch,emphasizing the peduncle arising through the sinus at the base of the leaf; d. Calyx; e. Fruit. f-g. I. batatas (L.) Lamarck: f. Sepals;g. Fruit. h. I. batatoides Choisy: Reproductive branch. i: I. blanchetti Choisy: Reproductive branch. j-k. I. calyptrata Dammer: j. Reproductive branch; k. Calyx with persistent bracteoles. l. I. decipiens Dammer: Open calyx–posterior view. m-p. I. eremnobrocha D.F. Austin,: m. Reproductive branch; n. Sericeous indument and glands on the adaxial surface of the leaf; o. Flower, emphasizing the campanulate corolla; p. Fruit. q. I. hederifolia L., Inflorescence.r. I. heptaphylla Sweet, Reproductive branch.s. I. incarnata (Vahl) Choisy,Calyx and bracteoles (Drawn by F.Martins).