Closterium
Algae Sample
Name: Closterium Common name: Green algae
Family: Closteriacaea
Collection Date: Received in lab
Habitat: Found in freshwater lakes, ponds, and slow flowing streams. Can also be found in sewage streams.
Location: (received in lab)
Description: unicellular with elongated cells formed on both ends of structure. Usually crescent shaped, sometimes straight. Two chloroplasts with many pyrenoids. Separated in middle by clear area in which the nucleus is found.
Key used: Landcare-Research -Manaaki Whenua. (n.d.). Retrieved October 12, 2016, from http://www.landcareresearch.co.nz/resources/identification/algae/identification-guide/identify/guide
Key used: Landcare-Research -Manaaki Whenua. (n.d.). Retrieved October 12, 2016, from http://www.landcareresearch.co.nz/resources/identification/algae/identification-guide/identify/guide
1. Algae are unicellular and not joined to other cells.
2. Cells crescent shaped with green contents.
3. Cells large and solitary, containing two chloroplasts separated by clear space in center.
4. Determined to be Closterium.
Figure 1: Closterium under 40x microscope. Notice the clear middle that separates the chloroplasts.
Figure 2: A larger version of Closterium at 40x under microscope. Notice again, the clear middle. The small cells inside are the pyrenoids.
AGain, no pictures. But is this the same picture that Abbey used? I know she had this as a sample as well, but you can't share samples...
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