Lucas, Gren

Conservation of threatened plants

1976 Simmons, J. B. | Beyer, R. I. | Brandham, P. E. | Lucas, Gren | Parry, V. T. H. |

Threatened higher plants, second draft

1978 Lucas, Gren | Synge, Hugh |

Preprint of 40 red data sheets on rare and threatened species in Europe

1977 Lucas, Gren | Walters, S. M. |

List of rare, threatened and endemic plants for the countries of Europe

1976 Lucas, Gren | Walters, S. M. |
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