Figure 1: Colonial, spherical group of Volvox. It's green color suggest it has chloroplasts. (Magnification x400)
Name: Volvox
Phylum: Chlorophyta
Family: Volvocaceae
Common Name: Green algae
Collection Date: 09/20/2015
Habitat: In a small pond.
Location: James H. Barrow Field Station, Hiram, Ohio
Description: Unicellular and colonial. Cells group together as a hollow, spiky sphere. Green and microscopic.
Collector: Caroline
Key used:
Rainis, K. G. and Russell B. J. (1996). Guide to Microlife. Franklin Watts. Danbury Connecticut.
Keying steps:
Quick Identification Chart for Protists pg 78
1b. Organism with stalk floating.... 3
3b. Colored.... 4
4a. Cells are green and contain chloroplasts.... 5
5b. Cells not arranged in green filaments.... 6
6b. Group of cells, lacking glass like walls.... Green, Yellow-green Protists pg. 134
Ball-shaped colony, shallow pond, <1 mm.... Volvox
Although this is similiar to Volvox, I think this may be Eudorina.
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