Bacillariophyceae
Pinnularia
Diatom group
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2 POINTS
Play: Pinnularia is considered an AUXOTROPH.
Fact: Pinnularia are common form of phytoplankton and have cell walls made of slilica (called a frustule).
cool, warm
Graphic by Keeling Labwww3.botany.ubc.ca/keeling/
Pinnularia is a fresh water alga more specifically a type of Bacillariophyta (diatom). Pinnularia is a predominantly fresh-water alga, usually found in ponds and moist soil. They can also be found in springs, estuaries, sediments, and oceans. Members of this genus are most commonly found in 40cm (1¼ ft) of water, at 5°C (40 °F). […] read more
Nitzschia
Nitzschia group 
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2 POINTS
Play: Nitzschia is considered an AUXOTROPH
Fact: Nitzschia are a common form of phytoplankton and have cell walls made of silica (called a frustule).
cool, warm
Graphic by Keeling Labwww3.botany.ubc.ca/keeling/
Nitzschia is a common pennate marine diatom. In the scientific literature this genus is sometimes termedNitzchia, this taxon has many species described, which all have a similar morphology. (From: Wikipedia, July 2015) read more
Eunotia
Diatom group 
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2 POINTS
Play: Eunotia is considered an AUXOTROPH
Fact: Eunotia are a common form of phytoplankton and have cell walls made of silica (called a frustule).
cool, warm
Graphic by Keeling Labwww3.botany.ubc.ca/keeling/