#  Chauvin & Roberge, Algues de la Normandie 

 



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**Chauvin,** François Joseph (1797-1859) & Michel Robert **Roberge** (?-1864)  
**ALGUES DE LA NORMANDIE ...**.  
Fascicles I-VIII, numbers 1-200. Caen (Chalopin), 1826-1838.  
Specimens are dried on paper. Information was derived from herbarium sheet labels.

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*Achnanthes longipes* \[C.\] Agardh  
*Conferva armillaris* \[O.F.\] Müller  
*Conferva stipitata* \[J.E. Smith\]  
France (Manche) Cherbourg   
Chauvin & Roberge 26

*Conferva flocculosa* \[Roth\]  
*Diatoma tenue* \[C.\] Agardh  
France (Calvados) Caen   
Chauvin & Roberge 51

*Gloionema apiculata* \[Greville  
*Schizonema apiculatum* \[C.\] Agardh  
France (Calvados) Saint-Aubin\[-sur-Mer\], Langrune  
Chauvin & Roberge 52

*Conferva striatula*   
*Diatoma arcuatum* \[Lyngbye\]  
*Diatoma striatulum* \[C.\] Agardh  
\[France (Calvados)\]  
Chauvin & Roberge 76

*Schizonema helminthosum* \[Chauvin\]  
France (Calvados) Luc \[as "Luc, près Caen"\]  
Chauvin & Roberge 77

*Exilaria cristallina*  
*Fragilaria capucina*  
*Frustulia oblonga* \[Kützing\]  
*Melosira orichalcea*  
\[France (Calvados)\] Caen, Falaise, Vire  
Chauvin & Roberge 126

*Echinella circularis* Greville  
*Echinella rosacea* Gaillon  
*Exilaria circularis* Greville  
*Frustulia circularis* Duby  
*Meridion circulare* \[C.\] Agardh  
*Meridion vernale* Leiblein  
\[France (Calvados)\]  
Chauvin & Roberge 127

*Achnanthes unipunctata* Greville  
*Candollela unipunctata* Gaillon  
*Diatoma unipunctatum* \[C.\] Agardh  
*Fragilaria unipunctata* Lyngbye  
*Striatella unipunctata* \[C.\] Agardh  
\[France (Manche)\] Cherbourg  
Chauvin & Roberge 128

*Diatoma elongatum* \[C.\] Agardh  
*Diatoma tenue* v. *e. elongatum* Lyngbye  
\[France (Calvados)\] Caen, Vire, Falaise  
Chauvin & Roberge 151

*Diatoma lyngbyei* \[C.\] Agardh  
*Diatoma tenue* v. *B. marium* Lyngbye  
\[France (Calvados)\] Côtes du Calvados  
Chauvin & Roberge 152