| Classification | Peronosporaceae: Peronospora |
| Barcode(s) | 00079720 |
| Type Status | Syntype |
| Collector | C. E. Bessey |
| Geography | |
| Date Collected | 1878-08-24 |
| Habitat | Host: Bidens frondosa |
| Host | Bidens frondosa |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/fb3c08e7-c506-42c3-8827-1a754f4f17b1 |
| Harvard University Herbaria Barcode | 00079720 |
| Herbarium | FH |
| Family | Peronosporaceae |
| Type Status | Syntype |
| Syntype of | Peronospora halstedii Farlow |
| Verified by | O. Constantinescu |
| Date Determined | 1983-11-** |
| Taxon Reference | (for Peronospora halstedii Farlow) Proc. Amer. Acad. Arts 1883. 18: 72. |
| Family | Peronosporaceae |
| Determination | Peronospora halstedii Farlow |
| Determination Remarks | [label name] [current name] |
| Annotation Text | (same sp. as on Eupatorium) |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
