Work on a catalogue of the Grimmiaceae in g revealed that the typification of Grimmia cribrosa Hedw. [≡ Coscinodon cribrosus (Hedw.) Spruce] was problematic. The specimen in g that was previously treated as the holotype for this name does not constitute original Hedwig material and could not have been seen by him when originally describing this species as it was collected after he died. The original Hedwig herbarium sheet for Grimmia cribrosa, in the Hedwig-Schwägrichen collection in g, contains eight different elements of different temporal and geographic origins as well as specimens of two different taxa (C. cribrosus and Grimmia plagiopodia Hedw.). To ensure the correct interpretation and application of this name a lectotype has been proposed herein from amongst the elements on the original Hedwig herbarium sheet in g.
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Vol. 114 • No. 4