Press Kit Images: Lichen Discovery
Specimen of Leptogium corticola, a pollution and disturbance sensitive species, collected by Abraham Halsey on the Upper West Side of Manhattan in 1820. Halsey worked through his identifications of this specimen when he borrowed a colleague's reference collection on loan from North Carolina via stagecoach.
A page of Halsey's lost collection show specimens of old-growth forest lichens, including the iconic Lungwort (Lobaria pulmonaria) collected in Manhattan in the 1820'S. Lungwort is used by many states, including the New York Natural Heritage Program, to map and recognize remaining old growth forests.
See also:
Newspaper image of the fire from 1866.
https://digitalcollections.nypl.org/items/510d47e0-ce41-a3d9-e040-e00a18...