| Classification | Asteraceae: Perymenium | 
| Harvard University Herbaria Barcode(s) | 00011203 | 
| Type Status | Lectotype,  Isosyntype | 
| Collector | J. N. Rose | 
| Collector number | 3649 | 
| Country | Mexico | 
| State | Zacatecas | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Zacatecas | 
| Locality | Near Plateado | 
| Date Collected | 1897-09-04 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/f594b382-888a-4a94-af2b-0fcf815a8429 | 
| Harvard University Herbaria Barcode | 00011203 | 
| Herbarium | GH | 
| Previous ownership | Ex US | 
| Family | Asteraceae | 
| Type Status | Lectotype | 
| Lectotype of | Perymenium subsquarrosum B. L. Robinson & Greenman | 
| Verified by | Harvard University Herbaria LAPI Team | 
| Date Determined | 2008-05-31 | 
| Determination Remarks | "Rose 3649" noted on label | 
| Taxon Reference | (for  Perymenium subsquarrosum B. L. Robinson & Greenman) Proc. Amer. Acad. Arts 1899. 34: 524. | 
| Family | Asteraceae | 
| Type Status | Isosyntype | 
| Isosyntype of | Perymenium subsquarrosum B. L. Robinson & Greenman | 
| Verified by | V. M. Bates (A/GH) | 
| Date Determined | 1984 | 
| Taxon Reference | (for  Perymenium subsquarrosum B. L. Robinson & Greenman) Proc. Amer. Acad. Arts 1899. 34: 524. | 
| Family | Asteraceae | 
| Determination | Perymenium subsquarrosum B. L. Robinson & Greenman | 
| Determined by | J. J. Fay (NY) | 
| Date Determined | 1972 | 
| Determination Remarks | [current name] | 
| Annotation Text | Lectotype | 
| Family | Asteraceae | 
| Determination | Perymenium subsquarrosum B. L. Robinson & Greenman | 
| Determination Remarks | [label name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |