| Fig. | | Page |
| PINNULARIA—Continued |
| 1 | Pinnularia cardinaliculus Cl. | [107] |
| 2 | Pinnularia viridis var. fallax Cl.? (var. B., Wm. Sm.?). | [104] |
| 3 | Pinnularia legumen Ehr. | [107] |
| 4 | Pinnularia legumen var.? | [107] |
| 5 | Pinnularia gibba (Kuetz.) V. H. | [109] |
| 6 | Pinnularia mesogongyla (Ehr.) Cl. | [109] |
| 7 | Pinnularia acrosphæria (Bréb.) Cl. | [108] |
| 8 | Pinnularia acrosphæria var. turgidula Grun. | [108] |
| 9 | Pinnularia tabellaria (Ehr.) Cl. var.? | [110] |
| 10 | Pinnularia leptosoma Grun. | [105] |
| 11 | Pinnularia stauroptera var. interrupta Cl. | [110] |
| 12 | Pinnularia stomatophora (Grun.) Cl. | [109] |
| 13 | Pinnularia stauroptera (Grun.) Cl. | [110] |
| 14 | Pinnularia parva (Ehr.) Cl. var.? | [108] |
| 15-19 | Pinnularia nodosa forma capitata Cl. | [108] |
| 16 | Pinnularia subcapitata var. paucistriata Grun. | [105] |
| 17 | Pinnularia viridis Nitzsch var. | [104] |
| 18 | Pinnularia viridis var. caudata n. var. | [104] |
| 20 | Pinnularia mesolepta var. stauroneiformis Grun. | [105] |
| 21 | Pinnularia polyonca (Bréb.) Lewis. | [108] |
| 22 | Pinnularia borealis Ehr. | [109] |
| 23 | Pinnularia lata (Bréb.) Wm. Sm. | [109] |
| 24 | Pinnularia borealis var. scalaris (Ehr.) Cl. | [109] |
| 25 | Pinnularia blandita n. sp. | [108] |
