Krammer and Lange-Bertalot in Krammer 2000 Category: Symmetrical biraphid
TYPE SPECIES: Hygropetra balfouriana (Grunow ex Cleve) Krammer and Lange-Bertalot in Krammer
The species in Hygropetra are small in size, with broad, V-shaped striae. The striae are alveolate, or composed of very small pores, in rows of 3-4. A small septum is present. Internally, robust transapical costae are positioned between the striae. The raphe is filiform, with a relatively large gap between proximal raphe ends.
Hygropetra is a genus of small taxa previously considered within Pinnularia. The group is typical of low nutrient, northern temperate and arctic lakes and mosses.
Cite This Page:
Spaulding, S., and Edlund, M. (2008). Hygropetra. In Diatoms of the United States. Retrieved August 30, 2015, from http://westerndiatoms.colorado.edu/taxa/genus/Hygropetra