Abstract
This study aims to contribute to the knowledge of the Alismataceae species in the state of Rio de Janeiro. The work is based on the morphological analysis of materials deposited in herbarium collections and field work, besides literature compilation. Nine species were recorded: Echinodorus grandiflorus, E. macrophyllus, Helanthium tenellum, Hydrocleys nymphoides, Limnocharis flava, Sagittaria guayanensis, S. lancifolia, S. montevidensis, and S. rhombifolia. Three of these species represent new occurrences to the state. Descriptions, illustrations, data on habitat, and geographic distribution are presented.
Key words:
burhead; aquatic plants; Southeast Brazil; taxonomy
