In England, the following species are confined or almost confined to calcareous soils: A splenium Ruta-muraria, Melica nutans, Carex digitata, Aceras anthropophora, Ophrys ap~ifera, Thalictrum minus, Helianthemum Chamaecislus, Viola hirta, Linum perenne, Geranium lucidum, Hippocrepis comosa, Potentiila verna, Viburnum Lantana, Galium asperum (= G.
Though the fondness of this species for the seeds of flax (Linum) and hemp (Cannabis) has given it its common name in so many European languages,' it feeds largely, if not chiefly in Britain on the seeds of plants of the order Compositae, especially those growing on heaths and commons.
The observations of Darwin as to the fertilization of orchids, Primula, Linum and Lythrum, and other plants, and the part which insects take in this function, gave an explanation of the observations of Christian Konrad Sprengel, made at the close of the 18th century, and opened up a new phase in the study of botany, which has been followed by Hermann Miller, Federico Delphic) and others, and more recently by Paul Knuth.
Linum grandiflorum: hardy, I ft., splendid crimson; var.
LINSEED, the seed of the common flax or lint, Linum usitatissimum.