2002 A TEXTBOOK OF THEORETICAL BOTANY 



Head) is found in Britain. The flowers stand erect in the bud 

 but are pendulous when open. They are protogynous, with 

 nectar concealed at the base of the perianth segments. They are 

 pollinated by humble bees. F. imperialis (Crown Imperial) and 

 others are commonly grown in gardens. There are some fifty 

 species of Ttilipa, found especially on the steppes of central 

 Asia. The seeds are flat and the capsule stands erect, distribution 

 being by a censer mechanism.. Many hybrid forms are cultivated 

 in gardens. T. sylvestris occurs wild in some southern and 

 eastern counties of England. The genus Lloydia is also repre- 

 sented in Britain by L. serotina which is found in Snowdonia, 

 the other four species occurring in other alpine parts of the 

 northern hemisphere. The genus Gagea is represented in Britain 

 bv G. hitea (Yellow Star of Bethlehem) and there are some thirty 

 other species in the north temperate regions of the Old World. 

 In some, if pollination fails, bulbils are produced in the axils 

 of the leaves, which when mature drop ofl" and grow into fresh 

 plants. 



i\ 



Fig. 1938. — Lilinm caudidiim. Madonna Lily. 

 Inflorescence. 



The genus Liliiim (Fig. 1938) itself contains about sixty species. The 

 bulbs are composed of loosely arranged scales and produce long 

 central stems which bear large flowers in racemes. They are 

 mostly pollinated by butterflies and moths, nectar being secreted 

 from a furrow in each perianth segment. L. martagon is 



