Pleurococcus vulgaris (GREEN SLIME) 



A. Classification: 

 Division I. Thallophyta. 



Subdivision I. Algae. 



Class II. Chlorophyceae (green algae). 

 Order. Ulotrichales. 



Family. Chaetophoraceae. 

 Genus. Pleurococcus. 

 Species, vulgaris Menegh. 



B. Habitat: 



i. From the material given you, infer where this plant 

 grows. Leave a blank space in your note-book, 

 and before the next laboratory period, record further 

 observations on this point, made out of doors, 

 noting especially the following points. Does the 

 plant appear to be more abundant on one side of 

 the object on which it grows than on another? 

 Describe and explain. In general, what external 

 conditions seem to favor its growth? Do you ever 

 find it intimately associated with other plants? 

 Describe. 



C. Naked-eye Characters: 



i. Describe the color of a colony of Pleurococcus. 

 Can you distinguish the shape or other characters 

 of an individual plant? 



D. Microscopic Characters: 



i. With the needle carefully scrape off a bit of the 

 plant from a piece of moist bark or wood, and 

 mount it in water. 



no 



