Van Heurck -- Synopsis des Diatomées de Belgique -- Index
| Encyonema | auerswaldii Rabenh. = Encyonema caespitosum var. auerswaldii (Rabenh.) Van Heurck | Page -- | Plate 3 | Figure 14 | |
| Encyonema | caespitosum Kütz. | Page 65 | Plate sA | Figure 3 | |
| Encyonema | caespitosum Kütz. ? [ intermediate form, possibly = Encyonema lunula (Ehrenb.) Grunow] | Page -- | Plate 3 | Figure 18 | |
| Encyonema | caespitosum var. [Grunow] = Encyonema caespitosum var. lata Van Heurck | Page -- | Plate 3 | Figure 13 | |
| Encyonema | caespitosum var. [Van Heurck] = Encyonema caespitosum var. auerswaldii (Rabenh.) Van Heurck | Page -- | Plate 3 | Figure 14 | |
| Encyonema | caespitosum var. auerswaldii (Rabenh.) Van Heurck | Page 66 | Plate 3 | Figure 14 | |
| Encyonema | caespitosum var. lata Van Heurck | Page 66 | Plate 3 | Figure 13 | |
| Encyonema | gracile (Ehrenb. ?) Rabenh. | Page -- | Plate 3 | Figure 20 | |
| Encyonema | gracile f. minor Van Heurck | Page -- | Plate 3 | Figure 22 | |
| Encyonema | gracile var. ? lunatum (W. Sm.) Van Heurck = Encyonema lunatum (W.Sm.) Van Heurck | Page -- | Plate 3 | Figure 23 | |
| Encyonema | gracile var. Grunow | Page -- | Plate 3 | Figure 21 | |
| Encyonema | lunatum (W.Sm.) Van Heurck | Page -- | Plate 3 | Figure 23 | |
| Encyonema | lunula (Ehrenb.) Grunow ? intermediate form, possibly = Encyonema caespitosum Kütz. | Page -- | Plate 3 | Figure 18 | |
| Encyonema | prostratum (Berk.) Ralfs | Page 65 | Plate 3 | Figure 9,10,11 | |
| Encyonema | turgidum (W.Greg.) Grunow | Page 65 | Plate 3 | Figure 12 | |
| Encyonema | ungeri Grunow = Schizonema lacustre C. Agardh | Page -- | Plate 15 | Figure 40 | |
| Encyonema | ventricosum (Kütz.) Grunow | Page 66 | Plate 3 | Figure 15,17 | |
| Encyonema | ventricosum f. Grunow | Page -- | Plate 3 | Figure 16 | |
| Encyonema | ventricosum f. minuta Grunow = Encyonema ventricosa (Kütz.) Grunow | Page -- | Plate 3 | Figure 17 | |
| Encyonema | ventricosum var. Grunow | Page -- | Plate 3 | Figure 19 |