FIGURE 2 in Heteranthera yucatana (Pontederiaceae), a new, threatened species from the Mexican Yucatan Peninsula

FIGURE 2. Heteranthera (Pontederiaceae) from the Mexican Yucatan Peninsula. A–F. H. yucatana. A-B. Calichal, natural habit. C. Plant with inflorescences and flowers. D. Inflorescence. E–F. Flower. G–H. Heteranthera limosa. G. Flowers, H. Natural habitat. (C–F. H. yucatana. G. Carnevali & J.L. Tapia 6262, based upon the type collection, CICY; G–H. Heteranthera limosa. Photos: A. José R. Grande A., C–D. Germán Carnevali. E. Débora Carnevali Ramírez. B, F, G: Claudia Ramírez Díaz.