Ipomoea carnea Jacq. subsp. fistulosa (Mart. ex Choisy) D.F. Austin

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 : 442-443

12. Ipomoea carnea Jacq. subsp. fistulosa (Mart. ex Choisy) D.F. Austin , Taxon 26: 237. 1977. Fig. 3h

Flowering & fruiting: Flowering from January to November; fruiting from July to September.

Distribution: Pantropical; widely cultivated as ornamental and native to swamps in South America ( Wood et al., 2020). In Brazil, it is naturalized throughout most of the territory ( Delgado-Júnior et al., 2023; Simão-Bianchini et al., 2024), being native to the Pantanal domain and absent in the South region. In Paraíba it is frequent and found in four IRs, in areas of both Caatinga and Atlantic Forest.

Specimens examined: BRAZIL, Bananeiras, caminho próximo a Cachoeira do Roncador , 19.05.2022, fl., A. P. S. Lima 37 ( HACAM!, PEUFR!); Cajazeiras, Parque Ecológico Engenheiros Ávidos ,

28.07.2015, fl. & fr., Á . N .T. Bandeira 84 (HACAM!);

São José do Bonfim, Sítio Cruzeiro, 19.10.2010, fl., J. S. Diniz 04 ( CSTR); Serra Branca, arredores da

Serra do Jatobá, 17.01.2017, fl., A. P. S. Lima & E. M .

Rodrigues 04 (HACAM!).

Notes: Popularly known as “algodão-bravo”, this species is recognized as the only one in the study area with a subshrub or shrub habit, featuring erect branches and a lanceolate leaf blade. Additionally, it has equal, pubescent to tomentelous sepals that are oval-orbicular with a rounded apex, an infundibuliform corolla that is pubescent, pink or pale lilac corolla, with included stamens.

Figures

Fig. 3. a. Ipomoea acanthocarpa (Choisy) Hochst. ex Schweinf. & Asch., Inflorescence–side view. b. I. alba L., Inflorescence–side view. c. I. asarifolia (Desr.) Roem. & Schult., Habit. d. I. bahiensis Willd. ex Roemer & Schultes, Inflorescence–lateral view emphasizing the calyx with subapical rostrum.e. I. batatas (L.) Lamarck,Flower–side view.f. I. blanchetti Choisy, Habit emphasizing the three-lobed leaf.g. I. brasiliana (Mart. ex Choisy) Meisner var.subincana (Choisy) J.R.I. Wood & Scotland, reproductive branch. h. I. carnea Jacq. subsp. fistulosa (Mart. ex Choisy) D.F. Austin, Habit. i. I. decipiens Dammer, Inflorescence. j–k. I. imperati (Vahl) Grisebach: j. Habit; k. Flower– top view (Photos a. B.F. Rocha; b-c, e. A.P.S. Lima; d. C.C. Correia;f. M.G.M. Gonçalves; g. E.M. Rodrigues; h. K.A. GorgÔnio;i-k. I.C.M. Albuquerque).