| 
                                    Porphyra atropurpurea (Olivi) De Toni
                                 | 
                                J. Butler 1006 bis | 
                                25 May 1934 | 
                                France | 
                                Normandie | 
                                Seine-Maritime (Dept.). Antifer | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Chondria dasyphylla (Woodw.) C.Agardh
                                 | 
                                J. Butler 1011 | 
                                25 May 1934 | 
                                France | 
                                Normandie | 
                                Seine-Maritime (Dept.). Antifer | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Polysiphonia nigrescens (Huds.) Grev. ex Harv.
                                 | 
                                J. Butler 1133 | 
                                24 Jul 1935 or 25 Jul 1935 | 
                                France | 
                                Normandie | 
                                Manche (Dept.). Carteret | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Halymenia ligulata (Woodw.) C.Agardh
                                 | 
                                J. Butler 1247 | 
                                25 Jul 1935 | 
                                France | 
                                Normandie | 
                                Manche (Dept.). Carteret | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Nemalion multifidum (F.Weber & D.Mohr) Chauv.
                                 | 
                                J. Butler 1244 | 
                                25 Jul 1935 | 
                                France | 
                                Normandie | 
                                Manche (Dept.). Carteret | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Halurus equisetifolius (Lightf.) Kütz.
                                 | 
                                J. Butler 1249 | 
                                25 Jul 1935 | 
                                France | 
                                Normandie | 
                                Manche (Dept.). Carteret | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Callithamnion corymbosum (Sm.) Lyngb.
                                 | 
                                J. Butler 1252 | 
                                24 Jul 1935 | 
                                France | 
                                Normandie | 
                                Manche (Dept.). Carteret | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Gracilaria compressa (C.Agardh) Grev.
                                 | 
                                J. Butler 1253 | 
                                24 Jul 1935 | 
                                France | 
                                Normandie | 
                                Manche (Dept.). Carteret | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Gelidium corneum (Huds.) J.V.Lamour.
                                 | 
                                J. Butler s.n. | 
                                24 Jul 1935 | 
                                France | 
                                Normandie | 
                                Manche (Dept.). Carteret | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Gelidium corneum (Huds.) J.V.Lamour.
                                 | 
                                J. Butler 1250 | 
                                24 Jul 1935 | 
                                France | 
                                Normandie | 
                                Manche (Dept.). Carteret | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Dasya coccinea (Huds.) Aresch.
                                 | 
                                J. Butler 1134 | 
                                25 Jul 1935 or 26 Jul 1935 | 
                                France | 
                                Normandie | 
                                Manche (Dept.). Carteret | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Apopellia endiviifolia (Dicks.) Nebel & D.Quandt
                                 | 
                                J. Butler 750 | 
                                Jan 1932 | 
                                France | 
                                Normandie | 
                                Eure (Dept.). Bords de l'Epte… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cladophora refracta Kütz.
                                 | 
                                J. Butler 1238 | 
                                25 May 1934 | 
                                France | 
                                Normandie | 
                                Seine-Maritime (Dept.). Antifer | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Nitella translucens (Pers.) C.Agardh
                                 | 
                                J. Butler 1170 | 
                                27 Jun 1936 | 
                                France | 
                                Nouvelle-Aquitaine | 
                                Landes (Dept.). Lac de Biscarosse | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Chara globularis Thuill.
                                 | 
                                J. Butler 1169 | 
                                25 Jun 1936 | 
                                France | 
                                Nouvelle-Aquitaine | 
                                Landes (Dept.). Lac de Biscarosse | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Halidrys siliquosa (L.) Lyngb.
                                 | 
                                J. Butler 1017 | 
                                25 May 1934 or 02 Aug 1935 | 
                                France | 
                                — | 
                                 | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Asperococcus bullosus J.V.Lamour.
                                 | 
                                J. Butler 1304 | 
                                24 Jul 1938 | 
                                France | 
                                — | 
                                Ploubazlanec, Baie de Launay | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Codium bursa (Olivi) C.Agardh
                                 | 
                                J. Butler 1303 | 
                                21 Jul 1938 | 
                                France | 
                                — | 
                                Ploubazlanec, Baie de Launay | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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