| Classification | Apocynaceae: Macrosiphonia |
| Harvard University Herbaria Barcode(s) | 02378848 |
| Collector | W. J. Eyerdam, A. A. Beetle & E. Grondona |
| Collector number | 23418 |
| Country | Argentina |
| State | Buenos Aires |
| Geography | South America: South America (Region) (Region): Argentina: Buenos Aires |
| Locality | Depto. Saavedra. Curumalan Hill, Hacienda Ducous, 15km north of Pigue |
| Date Collected | 1938-12-14 |
| Verbatim Elevation | 300m. |
| Habitat | in rich dry soil on slope of loma. |
| Frequency | Not common. |
| Project | Plants on Edge/Endless Forms |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/44cbb0b7-52dd-43e7-bfe6-20e382197587 |
| Harvard University Herbaria Barcode | 02378848 |
| Herbarium | GH |
| Family | Apocynaceae |
| Determination | Macrosiphonia petraea (A. St.-Hilaire) Kuntze |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
