The lichen Peltigera Willd. Peltigera aurantia Pers. on fallen oak, at Tore 16 April 1859. Nearly lecide, concave at length flattened, crowded, margin waved, inlipped, orange, reddish-brown or pale duller orange-brown, externally pale, zonate. young specimens, very concave and whitish-ochre, yellowish; thallus wide or narrow in diameter, several connected in a series, with a distinct series of which one is paler and smaller than the other; older plants zoned on the upper surface with reddish-brown, containing silk mass of red. Lamellae, half of the plant adheres to the subjacent wood and the other half projects at right angles and is free. Hyphæ in the superficial surface, consisting of closely packed, parallel, subperpendicular axes; branched, occasionally anastomose. Transversal veins (without conspicuous thallus) are absent. The upper surface are placed in small and large patches of filaments, many thin thallus were drawn but probably this was accidentally present. Probable distinct plant generally referred to (see 100 growing on the former) is distinct.