(Frenguelli) Frenguelli 1945 Category: Symmetrical biraphid
TYPE SPECIES: Muelleria linearis (O. Muller) Frenguelli
The outline of valves of Muelleria is linear, linear-elliptical or panduriform. The external proximal raphe ends are distinctive for their unilateral deflection. Distal raphe ends are branched. A longitudinal canal is present on each side of the raphe. Areolae are loculate. Living cells contain four plastids.
Muelleria gibbula and M. terrestris appear to be widespread in aerophilic habitats, in association with soils, mosses, and ephemeral pools of the mid-western and western United States. Several species within the genus are geographically restricted to the Arctic, Antarctic or South America.
Cite This Page:
Spaulding, S., and Edlund, M. (2008). Muelleria. In Diatoms of the United States. Retrieved March 27, 2015, from http://westerndiatoms.colorado.edu/taxa/genus/Muelleria