Linum bienne Linum bienne Linum bienne, the pale flax, is a flowering plant in the genus "Linum", native to the Mediterranean region and western Europe, north to England and Ireland. Pale flax grows as a biennial or perennial plant in dry, sunny calcareous or neutral grasslands from sea level up to 1000 m. It has long, narrow stems to 60 cm tall and slender leaves 1.5-2.5 cm long. The flowers have five petals about 1 cm long and nearly round; they are pale blue but streaked with darker colour. It flowers in late spring and, at least in more temperate regions, through
The Colours of Animals Protection. Chapter 7 Variable Protective Resemblance in Vertebrata, Etc. Chapter 8 Variable Protective Resemblance In Insects. Chapter 9 Protective Resemblances in Lepidoptera (continued). Chapter 10 Warning Colours. Chapter 11 Warning Colours (continued). Chapter 12 Protective Mimicry. Chapter 13 Protective and Aggressive Mimicry. Chapter 14 The Combination of Many Methods of Defence. Chapter 15 Colours Produced by Courtship. Chapter 16 Other Theories of Sexual Colouring. Chapter 17 Summary And Classification. The co-discoverer of natural selection Alfred Russel Wallace, reviewing Poulton in "Nature", was interested by Poulton's observations on thin films producing iridescence: "In some cases dried insects lose some of their