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PYATT, F.B., 1968. Ascospore germination in Pertusaria pertusa (L.) tuck. Revue Bryologique et Lichenologique, 36, pp. 316-320. ISSN 1290-0796

PYATT, F.B., 1968. Ascospore germination in the lichen Ochrolechia parella (L.) massal. Revue Bryologique et Lichenologique, 36, pp. 321-322. ISSN 1290-0796

PYATT, F.B., 1968. The effect of sulphur dioxide on the inhibitory influence of Peltigera canina on the germination and growth of grasses. The Bryologist, 71, pp. 97-101.

WOODFIELD, R., 1968. The idea of a social contract [paper]. In: Nottingham University Staff Philosophy Seminar, 1968, Nottingham.

PYATT, F.B., 1968. An investigation into conditions influencing ascospore discharge and germination in lichens. Revue Bryologique et Lichenologique, 36, pp. 323-329. ISSN 1290-0796

PYATT, F.B., 1968. The occurrence of a rotifer on the surfaces of apothecia of Xanthoria parietina. The Lichenologist, 4, pp. 74-75.