BOTANIC science has sustained a loss by the death, in the full vigour of middle life, of H. C. Levinge, of Knock Drin Castle, Mullingar, late Secretary to the Government of Bengal (Public Works). During his Indian career he devoted all the time he could spare from official labour to natural history, and especially to the vascular cryptogams. His collection of Indian ferns was the largest and finest hitherto made; he had himself explored more particularly Sikkim, Kashmir, the Neil-gherries, and the mountains south therefrom. At the very time when, on retiring home, he was preparing to work on his superb collection, the larger and finer part of it was destroyed in the fire of Whiteley's fire-proof warehouse. From this cause, and perhaps from the excellence of the late work of Colonel Beddome on Indian ferns, Mr. Levinge, at Knock Drin Castle, devoted himself chiefly to the Irish flora. He contributed several papers to the Irish Naturalist, and to the Journal of Botany; and added no less than seventy-seven additional species to area vii. of the Cybele Hibernica. Most of these were from West Meath, many from the immediate neighbourhood of Knock Drin. They are mainly critical or easily overlooked species as Chara denudata, Braun (new to the British Isles); he also discovered new localities for many very rare plants, as for Neotinea intacta, Reich, f.; for which see his paper in Journ. Bot., 1892, p. 194. Among his Sikkim collections he found a small undescribed Selaginella, in which the macrospores are covered with hairs (perhaps only extensions of the tubercles frequently present) exceeding the breadth of the macrospore—an extraordinary morphologic example of the possibilities of unicellular development, and also of interest to the student of fossil botany, where similar, possibly Lycopodiaceous, spores occur.