| 1 |
Plants
solitary or a few together, each limited to one large coenocyte
attached by minte hapteral cells. |
|
| 1 |
Plants of few to many vegetative cells |
2
|
| 2 |
Plants
crowded, concrescent, small, the coenocyes 2-4 mm. diam., connected
in obscure filaments, those lower in the mass elongate and often
somewhat rhizoidal |
V.
ocellata
|
| 2 |
Plants
of larger cells, the branches irregularly placed |
3
|
| 3. |
Cell
diameter 5-15mm; plants often forming large masses |
V.
macrophysa
|
| 3. |
Cell
diameter less than 5 mm |
4
|
|
4.
|
Cells
1-3 mm diam., 5-10 mm long, the plants tending to form dense
tufts or balls
|
|
|
4.
|
Cells
1.0 - 2.5 mm diam., 5-20 mm long, the branches chiefly repent
|
V.
utricularis
|
