| Classification | Marsileaceae: Marsilea | 
| Barcode(s) | 00246705 | 
| Collector | D. M. Johnson | 
| Collector number | 769 | 
| Country | Argentina | 
| State | Corrientes, Provincia de | 
| Geography | South America: South America (Region) (Region): Argentina: Corrientes, Provincia de | 
| Locality | Depto. San Cosme, road to Ing. Primer Correntino, 2 km N of Santa Ana. | 
| Date Collected | 1982-02-09 | 
| Habitat | Virtually encircling small ponds in low places of quebrachal (Aspidosperma-Schinopsis forest). Growing in mud and shallow water with Ludwigia, Panicum, Eleocharis, Ranunculus, Cynodactylon; in deeper water with Egeria and Najas. | 
| Container | Plants of Argentina | 
| Substrate | Soil a silty pale tan clay (pH 7.0) | 
| Remarks | New sporocarps abundant on buried rhizomes. | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/55bcea2a-1706-4bee-9b7b-11f5e638b435 | 
| Harvard University Herbaria Barcode | 00246705 | 
| Herbarium | A | 
| Family | Marsileaceae | 
| Determination |  Marsilea ancylopoda A. Brown | 
| Determined by | D.M. Johnson (MICH) | 
| Date Determined | 1985-08-** | 
| Determination Remarks |  [current name] | 
| Family | Marsileaceae | 
| Determination |  Marsilea concinna Baker | 
| Determination Remarks |  [label name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |