Van Heurck -- Synopsis des Diatomées de Belgique -- Index
| Fragilaria | acuta Ehrenb., partim ? = Fragilaria capucina var. acuta (Ehrenb.) Rabenh. | Page -- | Plate 45 | Figure 4 | |
| Fragilaria | acuta Ehrenb., partim ? = Fragilaria brevistriata Grunow | Page -- | Plate 45 | Figure 32 | |
| Fragilaria | aequalis var. ? producta Lagerst. | Page -- | Plate 44 | Figure 7 | |
| Fragilaria | anceps Ehrenb. = Diatoma anceps (Ehrenb.) Grunow | Page 161 | Plate 51 | Figure 5,6,7,8 | |
| Fragilaria | bidens f. major Grunow | Page -- | Plate 45 | Figure 6 | |
| Fragilaria | bidens f. minor Grunow | Page -- | Plate 45 | Figure 7 | |
| Fragilaria | binalis Ehrenb. = Tabellaria binalis (Ehrenb.) Grunow | Page -- | Plate 44 | Figure 23 | |
| Fragilaria | binodis Ehrenb. = Fragilaria construens var. binodis (Ehrenb.) Grunow | Page -- | Plate 45 | Figure 24[a],25 | |
| Fragilaria | brevistriata Grunow | Page 157 | Plate 45 | Figure 32 | Note 74 |
| Fragilaria | brevistriata var.? lapponica Grunow = Fragilaria lapponica Grunow | Page -- | Plate 45 | Figure 35 | Note 75 |
| Fragilaria | brevistriata var. mormorum Grunow | Page -- | Plate 45 | Figure 31 | Note 76 |
| Fragilaria | brevistriata var. pusilla Grunow | Page -- | Plate 45 | Figure 34 | Note 77 |
| Fragilaria | brevistriata var.subacuta Grunow | Page -- | Plate 45 | Figure 32 | Note 78 |
| Fragilaria | brevistriata var. subcapitata Grunow | Page -- | Plate 45 | Figure 33 | Note 79 |
| Fragilaria | californica Grunow | Page -- | Plate 44 | Figure 13 | |
| Fragilaria | capensis Grunow | Page -- | Plate 44 | Figure 19 | |
| Fragilaria | capucina Desm. | Page 156 | Plate 45 | Figure 2 | |
| Fragilaria | capucina var. acuminata Grunow | Page 156 | Plate 45 | Figure 8 | |
| Fragilaria | capucina var. acuta (Ehrenb.) Rabenh. | Page 156 | Plate 45 | Figure 4 | Note 80 |
| Fragilaria | capucina var. lanceolata Grunow | Page -- | Plate 45 | Figure 5 | |
| Fragilaria | capucina var. major W.Sm. = Fragilaria smithiana Grunow | Page -- | Plate 45 | Figure 1 | |
| Fragilaria | capucina var. mesolepta (Rabenh.) Rabenh. | Page 156 | Plate 45 | Figure 3 | |
| Fragilaria | construens (Ehrenb.) Grunow | Page 156 | Plate 45 | Figure 26cd,27 | |
| Fragilaria | construens var. binodis (Ehrenb.) Grunow | Page 157 | Plate 45 | Figure 24a,25 | |
| Fragilaria | construens [var.] genuina = Fragilaria construens (Ehrenb.) Grunow | Page -- | Plate 45 | Figure 26cd,27 | |
| Fragilaria | construens var. pumila Grunow | Page -- | Plate 45 | Figure 21a | |
| Fragilaria | construens var. venter (Ehrenb.) Grunow | Page 156 | Plate 45 | Figure 21b,22,23,24b,26ab | |
| Fragilaria | contracta Schum. = Fragilaria capucina var. mesolepta (Rabehn.) Rabenh. | Page -- | Plate 45 | Figure 3 | |
| Fragilaria | crotonensis Kitton | Page 156 | Plate ? | Figure ? | Note 81 |
| Fragilaria | crotonensis var. prolongata Grunow | Page 156 | Plate 40 | Figure 10 | |
| Fragilaria | dubia Grunow ? = Dimeregramma dubia (Grunow) Grunow ?? | Page -- | Plate 36 | Figure 18 | |
| Fragilaria | elliptica Schum. | Page -- | Plate 45 | Figure 15 | |
| Fragilaria | elliptica f. minor Grunow | Page -- | Plate 45 | Figure 16,17 | |
| Fragilaria | harrisonii (W.Sm.) Grunow | Page 157 | Plate 45 | Figure 28 | |
| Fragilaria | hiemalis Lyngb. = Diatoma hiemalis (Lyngb.) Heib. | Page -- | Plate 51 | Figure 1,2 | |
| Fragilaria | hyalina (Kütz.) Grunow | Page 155 | Plate 44 | Figure 14,15 | |
| Fragilaria | intermedia (Grunow) Grunow | Page -- | Plate 45 | Figure 9,10,11 | |
| Fragilaria | ischaboensis Grunow | Page -- | Plate 36 | Figure 17 | |
| Fragilaria | islandica Grunow | Page -- | Plate 45 | Figure 37 | |
| Fragilaria | lancettula Schum. | Page -- | Plate 45 | Figure 20 | |
| Fragilaria | lapponica Grunow | Page -- | Plate 45 | Figure 35 | |
| Fragilaria | mesodon Ehrenb. = Diatoma hiemale var. mesodon (Ehrenb.) Van Heurck | Page -- | Plate 51 | Figure 3,4 | |
| Fragilaria | mesolepta Rabenh. = Fragilaria capucina v. mesolepta (Rabenh.) Rabenh. | Page 156 | Plate 45 | Figure 3 | |
| Fragilaria | minutissima Grunow | Page -- | Plate 45 | Figure 14 | |
| Fragilaria | mutabilis (W.Sm.) Grunow | Page 157 | Plate 45 | Figure 12 | |
| Fragilaria | mutabilis var. ? cuneata Grunow = Sceptroneis marina var. parva Grunow | Page -- | Plate 45 | Figure 18 | |
| Fragilaria | mutabilis var. ? elliptica (Schum.) Grunow = Fragilaria elliptica Schum. | Page -- | Plate 45 | Figure 15 | |
| Fragilaria | mutabilis var. ? elliptica f. minor Grunow = Fragilaria elliptica f. minor Grunow | Page -- | Plate 45 | Figure 16,17 | |
| Fragilaria | mutabilis var. intercedens Grunow | Page -- | Plate 45 | Figure 13 | |
| Fragilaria | mutabilis var. ? intermedia Grunow = Fragilaria intermedia (Grunow) Grunow | Page -- | Plate 45 | Figure 9,10,11 | |
| Fragilaria | mutabilis var. ? lapponica Grunow = Fragilaria lapponica Grunow | Page -- | Plate 45 | Figure 35 | |
| Fragilaria | mutabilis var. minutissima Grunow = Fragilaria minutissima Grunow | Page -- | Plate 45 | Figure 14 | |
| Fragilaria | nitzschioides Grunow | Page -- | Plate 44 | Figure 10 | |
| Fragilaria | nitzschioides var. ? brasiliensis Grunow | Page -- | Plate 44 | Figure 11 | |
| Fragilaria ? | northumbrica Grunow | Page -- | Plate 44 | Figure 17 | |
| Fragilaria ? | pacifica Grunow | Page -- | Plate 44 | Figure 20,21,22 | |
| Fragilaria ? | parasitica (W.Sm.) Grunow | Page -- | Plate 45 | Figure 30 | |
| Fragilaria ? | parasitica var. subconstricta Grunow | Page -- | Plate 45 | Figure 29 | |
| Fragilaria ? | parasitica var. trigona Grunow | Page -- | Plate 116 | Figure 14 | |
| Fragilaria | pinnata Ehrenb., partim = Fragilaria mutabilis (W.Sm.) Grunow | Page -- | Plate 45 | Figure 12 | |
| Fragilaria | producta var. bohemica Grunow | Page -- | Plate 44 | Figure 8 | |
| Fragilaria ? | schwarzii Grunow | Page -- | Plate 44 | Figure 24 | |
| Fragilaria | smithiana Grunow | Page -- | Plate 45 | Figure 1 | |
| Fragilaria | striatula Ehrenb., partim ? = Fragilaria intermedia (Grunow) Grunow | Page -- | Plate 45 | Figure 9,10,11 | |
| Fragilaria | striatula Ehrenb., partim = Fragilaria mutabilis (W.Sm.) Grunow | Page -- | Plate 45 | Figure 12 | |
| Fragilaria | striatula Lyngb. | Page -- | Plate 44 | Figure 12 | |
| Fragilaria | striatula var. ? californica Grunow = Fragilaria californica Grunow | Page -- | Plate 44 | Figure 13 | |
| Fragilaria | undata W.Sm. | Page -- | Plate 44 | Figure 9 | |
| Fragilaria | venter Ehrenb. = Fragilaria construens var. venter (Ehrenb.) Grunow | Page -- | Plate 45 | Figure 21b,22,23,24b | |
| Fragilaria | virescens Ralfs | Page 155 | Plate 44 | Figure 1 | |
| Fragilaria | virescens Ralfs | Page -- | Plate 44 | Figure A | Note 82 |
| Fragilaria | virescens var. ? exigua Grunow | Page -- | Plate 44 | Figure 2,3 | |
| Fragilaria | virescens var. ? oblongella Grunow | Page -- | Plate 44 | Figure 6 | |
| Fragilaria | virescens var. ? oblongella f. clavata Grunow | Page -- | Plate 44 | Figure 4 | |
| Fragilaria | virescens var. ? subsalina Grunow | Page -- | Plate 44 | Figure 5 | |
| Fragilaria | vitrea (Kütz.) Grunow | Page -- | Plate 44 | Figure 16ab | |
| Fragilaria | vitrea var. minima Grunow | Page -- | Plate 44 | Figure 16cde,18 |