This grass of the genus Holcus was stated to be new to the British Flora, since no mention of it is made in the works either of Sir James Smyth or Sir William Hooker; and as the author was unable to find it noticed in the continental works, he proposed for it the name of Biaristatus, as illustrative of the species. Several specimens gathered in the neighbourhood of Edinburgh were exhibited, and the characters by which it differed from Holcus mollis and Holcus lanatus were pointed out.