Hysterium breve Nyp. on old dry barkless stems of Kernaelean Spondylium. Dounkern 16 May 1889 Nodal, superficial colomdato- oblong, blunt, subiculettiform, black, Lips obtuse, disc very broad, with a black praecina. Sortheica Scotland, the younger round and quite buttleiform, representing a Sphoria with a wide aperture, provisionally the lips broader; in larger and older specimens the aperture contracts at the sides, and sometimes appears bent. At the base of the Sori-thecium an inner filipin-white & translucent radicle, by which it is attached, but then an off shrewd white with a lens. An application of moisture the content of the Sori-thecium rises up to the level of the airifice, they are covered by a dark-brown or blackish film which is a subradial membrane and as it lies in meshes; this film is continuous with the black tegument which passes beneath the hymenium the topament and is imbibed at the centre beneath; it contains much translucent, slight yellowish, platy near matte white hyphae, and surrounds at the sides. The hymenium (resembling At Carnivora Podzipes of Lichens.) This is a common substance in what are thickly set erect parallel plates (or theca). Preserved long minute pale translucent punctiform spores, vague