6 510392 Heteranthera dubia (Jacq.) MacMill. [125 266945 Commelina dubia Jacq.] Pontederiaceae M. Sessé, V. Cervantes, M. Mociño, Drawings from the Spanish Royal Expedition to New Spain (1787–1803) (to be published in the Flora Mexicana, Real Jardin Botanico, Madrid, Spain): t. 25][Real Jardin Botanico no. 25] ()
