The unique specimen on which this description is based is in the Geological Department of the Manchester University Museum (No. L. 8549). It is on a slab of dark grey flagstone measuring 26 × 21 cm. from the Hill of Forss, Waas, Caithness, the plant being spread out on the surface of the stone like a very complete herbarium specimen (Plate fig. 1). It was referred to and briefly described, but not named, in 1888 by Mr G. Edward, who discovered it, and from whom it passed with other Old Red Sandstone fossils into the Manchester collections. In his paper, Mr Edward called attention to “three of the largest and most perfect Old Red Fossil Plants that may be seen in any museum in the kingdom,” which he had found during his collecting expeditions extending over some thirty years. Two of the fossil plants he refers to can be identified in the Manchester University Museum. The one we are concerned with here is described as “a lovely bush-like plant with hundreds of ribbon or grass-like leaves that have pod, or pocket, or flower-like terminations.”