Figure 1. The green tube alga, Enteromorpha
intestinalis, (A) growing on a boulder near the high tide
mark and (B) near a supralittoral freshwater seep. Note how the
alga appears to be unable to grow on the white quartz mineral
inclusions. Other rocks in the area exhibited the same phenomenon.
A. B.
Figure 2. The green alga Ulvasp.,
or sea lettuce, (A) in it's typical setting in the mid to low
intertidal, and, (B) typical thallus form.
A. B.
Figure 3. Filmentous, high intertidal
green alga Ulothrix. (A) Typical appearance when dried
out on rock surfaces, and (B) detail of hydrated thalli.
B. 
B. 
B. 
