| Name | Pleurosigma angulatum (J. T. Quekett) W. Smith |
| Authorship | (J. T. Quekett) W. Smith [Canada] |
| Rank | Species |
| Placed in | Pleurosigma W. Smith |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Pleurosigma angulatum (J. T. Quekett) W. Smith |
| Identification made in | [no date] (1) |
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