| Name | Chara sejuncta f. elongata Allen | 
| Authorship | Allen | 
| Rank | Forma | 
| Placed in | Chara sejuncta A. Braun | 
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Chara sejuncta f. elongata Allen | 
| Identification made in | [no date] (2) | 
| Name | Chara sejuncta f. elongata Allen | 
| Authorship | Allen | 
| Rank | Forma | 
| Placed in | Chara sejuncta A. Braun | 
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Chara sejuncta f. elongata Allen | 
| Identification made in | [no date] (2) | 
