416 BRITISH FLOWERING PLANTS chap. 



EOMXJLEA 



R. Columnse (or Trichonema Bulhocodium) is a 

 native of the Mediterranean area, which is also found 

 in the Channel Islands, and near Dawlish, in Devon. 



AMAEYLLIDACE^. 

 This order differs from Iridacese in having 6 stamens. 



Narcissus 



This genus has a cup-shaped or tubular crown at 

 the mouth of the flower tube. Nectar is secreted at 

 the base of the flower tube. 



There are two species in Britain. N. Pseudo- 

 narcissus has yellow solitary flowers ; N. hijlorus (a 

 Western European plant which has become naturalised) 

 has white or yellowish-white flowers generally in pairs. 



N. Pseudo-narcissus (Daffodil). — The flower tube is 

 about an inch long, wider at the top, so that insects can 

 enter it, and a proboscis 6 mm. long can reach the honey. 

 There are 3 nectaries. The pistil is a little longer than 

 the anthers. 



Leucojum 



There is no free nectar, but the tissues of the flower 

 appear to contain a sweet sap. 



L. sestivum (Snow-flake). — ^The flowers are bell- 

 shaped, hanging in a cluster of 2-6. The pistil is rather 

 longer than the stamens. Knuth found traces of sugar 

 in the tissues under the green spots on the perianth- 

 leaves. 



Galanthus 



6. nivalis (Snowdrop). — ^The flowers are homo- 

 gamous. The pistil is longer than the stamens. 

 Sprengel found that nectar was secreted by the green 



