| 1 cell connections |
| cell fusions |
secondary pit-connections |
FC |
P2 |
|
| 2 epithallial cells |
| rounded |
flared |
AR |
SV |
|
| 3 trichocytes |
| intercalary |
terminal |
grouped |
Ti |
Tt  |
Tg |
|
| 4 coaxial core |
| present |
absent |
sometimes |
CC |
CC |
(CC) |
|
| 5 anatomical structure |
| monomerous |
monomerous and dimerous |
dimerous |
M |
MD |
D |
|