Although green seems to have been their popular colour, yet the fairies of the moon were often clad in heath-brown or lichen-dyed garments, whence the epithet of "Elfin-grey." Their petticoats, for instance, were composed of the fox-glove, a flower in demand among Irish fairies for their gloves, and in some parts of that country for their caps, where it is nicknamed "Lusmore," while the _Cuscuta epithymum_ is known in Jersey as "fairies' hair." Their raiment was made of the fairy flax, and the wood-anemone, with its fragile blossoms, was supposed to afford them shelter in wet weather.

Shakespeare has represented Ariel reclining in "a cowslip's bell," and further speaks of the small crimson drops in its blossom as "gold coats spots"-- "these be rubies, fairy favours." And at the present day the cowslip is still known in Lincolnshire as the "fairy cup." Its popular German name is "key-flower;" and no flower has had in that country so extensive an association with preternatural wealth.

A well-known legend relates how "Bertha" entices some favoured child by exquisite primroses to a doorway overgrown with flowers.

This is the door to an enchanted castle.

When the key-flower touches it, the door gently opens, and the favoured mortal passes to a room with vessels covered over with primroses, in which are treasures of gold and jewels.
When the treasure is secured the primroses must be replaced, otherwise the finder will be for ever followed by a "black dog." Sometimes their mantles are made of the gossamer, the cobwebs which may be seen in large quantities on the furze bushes; and so of King Oberon we are told: "A rich mantle did he wear, Made of tinsel gossamer, Bestarred over with a few Diamond drops of morning dew." Tulips are the cradles in which the fairy tribe have lulled their offspring to rest, while the _Pyrus japonica_ serves them for a fire.[2] Their hat is supplied by the _Peziza coccinea_; and in Lincolnshire, writes Mr.Friend,[3] "A kind of fungus like a cup or old-fashioned purse, with small objects inside, is called a fairy-purse." When mending their clothes, the foxglove gives them thimbles; and many other flowers might be added which are equally in request for their various needs.