| Classification | Dryopteridaceae: Dryopteris |
| Classification 1 | Dryopteridaceae: Nephrodium |
| Classification 2 | Dryopteridaceae: Dryopteris |
| Classification 3 | Dryopteridaceae: Nephrodium |
| Harvard University Herbaria Barcode(s) | 01092292 |
| Type Status | Isosyntype |
| 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 |
| Locality | Concord |
| Date Collected | 1903-08-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1ec989ba-cd18-48f0-a34b-a6090e3be5b5 |
| Harvard University Herbaria Barcode | 01092292 |
| Herbarium | NEBC |
| Previous ownership | [Ex] Herbarium of Walter Deane. Bequeathed to the New England Botanical Club. Received August, 1930 |
| Family | Dryopteridaceae |
| Determination | Dryopteris spinulosa var. concordiana (Davenport) Eastman |
| Determined by | [annotation on sheet] |
| Family | Dryopteridaceae |
| Determination | Nephrodium spinulosum var. concordianum Davenport |
| Determination Remarks | [is label name] |
| Annotation Text | see Rhodora 1904 |
| 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 13 October 2017
|
| Family | Dryopteridaceae |
| Type Status | Isosyntype |
| Isosyntype 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. |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
