Ipomoea meyeri (Spreng.) G.Don, Gen. Hist.

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 : 449

26. Ipomoea meyeri (Spreng.) G.Don, Gen. Hist. 4: 275. 1838. Fig. 6h–j

Flowering & fruiting: Flowering in October; fruiting not seen.

Distribution: It occurs in moist forest areas of disturbed locations ( Wood et al., 2020) of Central America ( Mexico only) and South America ( Brazil, Colombia, Ecuador, Peru, and Venezuela). In Brazil, its distribution is restricted to the North (Acre and Amazonas) and Northeast regions, in Ceará, Maranhão ( Simão-Bianchini et al., 2024) and in this study, we expanded its distribution to the state of Paraíba. However, we consider that it is locally extinct, as only one record dating back more than 50 years was found, from the municipality of João Pessoa, an environment that is highly fragmented due to urbanization.

Specimens examined: BRAZIL, João Pessoa, Balaustrada , 07.10.1971, fl., I . L . Correa 39 ( JPB!) .

Notes: This material was misidentified in the herbarium as probable Ipomoea eriocalyx , which we did not find in the study area. But I. meyeri has branches glabrescent, bracteoles linear, outer sepals oblong-lanceolate, densely hirsute at the base with rigid golden trichomes, inner sepals lanceolate, hirsute only in the longitudinal midline, and corolla 1.5–1.8 cm long, glabrous (vs. branches pubescent, bracteoles lanceolate, sepals lanceolate, entirely pubescent, and larger corolla, c. 5 cm long, pubescent).

Figures

Fig. 6. a-d. Ipomoea longibracteolata Sim.-Bianch. & J.R.I. Wood: a. Leaf; b. Leaf indument; c. Flower with closed corolla; d. Bracteole. e-f. I. mauritianaJacq.: e. Leaf; f. Calyx. g. I. megapotamica Choisy,Calyx emphasizing the prominent basolateral glands. h-j. I. meyeri (Spreng.) G.Don: h. Reproductive branch; i. Inner sepal; j. Outer sepal. k-m. I. ramosissima (Poir.) Choisy: k. Reproductive branch; l. Outer sepal; m. Inner sepal. n. I. squamosa Choisy: Calyx. o-p. I. tenera Meisner: o. Reproductive branch; p. Calyx. q. I. tiliacea (Willd.) Choisy: Inflorescence. r. I. grandifolia (Dammer) O’Donell: Calyx. s. I. violacea L.: Reproductive branch (Drawn by F. Martins).