| WebNameShort | |
| Fragilaria gracillima Mayer 1919 |
Details |
| Fragilaria pinnata var. inflata Mayer 1919 |
Details |
| Fragilaria pinnata var. intermedia (Grunow in litt., Grunow) Mayer 1919 |
Details |
| Fragilaria pinnata var. parallela Mayer 1919 |
Details |
| Gomphonema angustatum f. breve Mayer 1919 |
Details |
| Gomphonema angustatum f. breve Mayer 1919 |
Details |
| Gomphonema insigne f. lusus cymbelliforme Mayer 1919 |
Details |
| Gomphonema insigne var. undulatum Mayer 1919 |
Details |
| Gomphonema intricatum var. pusillum Mayer 1919 |
Details |
| Gomphonema intricatum var. semiaperta Mayer 1919 |
Details |
| Gomphonema olivaceum f. dubia Mayer 1919 |
Details |
| Gomphonema olivaceum var. inflata (Mayer) Mayer 1919 |
Details |
| Gomphonema olivaceum f. minores Mayer 1919 |
Details |
| Gomphonema olivaceum f. minutulum (minutula) (Mayer) Mayer 1919 |
Details |
| Gomphonema parvulum var. genuinum (genuina) Mayer 1919 |
Details |
| Gomphonema subclavatum var. commutatum (Grunow in Van Heurck) Mayer 1919 |
Details |
| Gomphonema subclavatum var. genuinum Mayer 1919 |
Details |
| Gomphonema subclavatum var. medium Mayer 1919 |
Details |
| Gomphonema subclavatum var. tenellum Mayer 1919 |
Details |
| Hantzschia amphioxys var. elongata sensu Mayer 1919 |
Details |