|
Kelp, the largest seaweed known, is a brown form of this primitive plant |
algae
|
$200 |
J |
BOTANY |
1991-11-08 |
#1655 |
|
Diatoms are single-cell varieties of these water plants |
algae
|
$600 |
DJ |
BOTANY |
1991-05-27 |
#1566 |
|
Among the most primitive plants with chlorophyll, it is the main plant life in both seawater & freshwater |
algae
|
$600 |
J |
PLANTS |
1990-07-14 |
#5 |
|
Algology is the study of these |
algae
|
$200 |
J |
BOTANY |
1987-10-15 |
#714 |
|
Very hardy types of this simple plant live in the hot springs of Yellowstone Park |
algae
|
$400 |
DJ |
BOTANY |
1987-06-05 |
#650 |