Charophyceae (Chlorophyta) are a unique class of algae due their vegetative structure and macroscopic gametangia. The floristic survey of the genus Nitella (Characeae, Chlorophyta) in Mato Grosso (18º55'05"S and 54º50'39"W) and Mato Grosso do Sul States (19º12'03"S and 57º35'32"W), was performed by analyzing specimens from SP, HMS and CPAP herbarium specimens, and resulted in the identification, description and illustration of seven species: Nitella acuminata, N. axillaris, N. flagellifera, N. gollmeriana, N. intermedia, N. mucronata and N. tenuissima.
Charophyceae; floristic inventory; macroalgae; taxonomy
