| Classification | Polypodiophyta: Thelypteridaceae: Thelypteris |
| Classification 1 | Dryopteridaceae: Nephrodium |
| Classification 2 | Dryopteridaceae: Dryopteris |
| Classification 3 | Dryopteridaceae: Nephrodium |
| Harvard University Herbaria Barcode(s) | 00021659 |
| Type Status | Syntype |
| Collector | H. A. Purdie |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: US and Canada (Region): United States of America: Massachusetts: Middlesex County: Concord |
| Date Collected | 1902-08-25 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/29e6a5a6-9c79-467a-9851-61214ff33694 |
| Harvard University Herbaria Barcode | 00021659 |
| Herbarium | GH |
| Previous ownership | From the Herbarium of George Edward Davenport Given to the Gray Herbarium, December 1922, By his daughter, Mary Elizabeth Davenport. |
| Family | Thelypteridaceae |
| Determination | Thelypteris spinulosa var. concordiana (Davenport) Weatherby |
| Determination Remarks | [is label name] |
| Family | Dryopteridaceae |
| Determination | Nephrodium spinulosum var. concordianum Davenport |
| Determined by | Tryon, Rolla Milton |
| Date Determined | 1947 |
| Annotation Text | Type |
| Family | Dryopteridaceae |
| Determination | Dryopteris campyloptera (Kunze) Clarkson |
| Determination Remarks | [is Current name] |
| Annotation Text | fide R. L. Angelo, Vascular Flora of Concord, Massachusetts
(http://www.ray-a.com/ConcordMassFlora.pdf)
Accessed 31 March 2014
|
| Family | Dryopteridaceae |
| Type Status | Syntype |
| Syntype of | Nephrodium spinulosum var. concordianum Davenport |
| Verified by | Kittredge, Walter Tobey |
| Date Determined | 2017 |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Nephrodium spinulosum var. concordianum Davenport) Rhodora 1904. 6: 33. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
