a hae 5 ee 
’ < _ 
PLatE 3. 
Pennaria tiarella, page 7. 
Fig. 1. Base of a stem of a colony growing on a pile of the wharf, Woods 
x 20. ao TERS ; 
Fig. 2. Top of the same stem. x 20. 
Fig. 3. Top of a stem of a colony growing on a blade of eelgrass (Zostera), 
Mass. x 20. 
Fig. 4. Base of the same colony. x 20. 
