| Classification | Aspidiaceae: Aspidium |
| Classification 1 | Dryopteridaceae: Nephrodium |
| Classification 2 | Dryopteridaceae: Dryopteris |
| Classification 3 | Dryopteridaceae: Nephrodium |
| Harvard University Herbaria Barcode(s) | 01092293 |
| Type Status | Isosyntype |
| Collector | H. A. Purdie & G. E. Davenport |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Concord |
| Locality | Concord Mass. |
| Date Collected | 1903-08-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7952d557-8490-47b8-a889-be9e525e3f92 |
| Harvard University Herbaria Barcode | 01092293 |
| Herbarium | NEBC |
| Family | Aspidiaceae |
| Determination | Aspidium spinulosum var. concordianum Eastman |
| Determined by | [annotation on sheet] |
| Family | Dryopteridaceae |
| Determination | Nephrodium spinulosum var. concordianum Davenport |
| Determination Remarks | [is label name] |
| Annotation Text | Rhodora |
| 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 |
