Amentace(2 179 



Salicine^. Generally dicecious ; pistillate flowers in cat- 

 kins ; fruit a capsule. 



Betuline^. Flowers generally monoecious ; pistillate 

 flowers in catkins ; fruit a flat nut. 



MyricejE. Flowers generally dioecious ; pistillate flowers 

 in catkins ; fruit a false drupe from the scaly bracts becoming 

 fleshy. 



CupULiFER^. Pistillate flowers in tufts or spikes ; bracts 

 grow up around fruit to form a cup or cupule (figs. 281 and 

 312)- 



Principal British Plants. 



SALICINE^. 



Populus, Poplar. Stamens eight to thirty ; stigmas deeply 

 forked, slight ; perianth present. Several species grown as 

 ornamental and timber trees. 



Salix, Willow and Osier. Stamens one to five ; stigmas 

 slightly forked ; no perianth present. Very numerous species. 



BETULINE^. 



Alnus, Alder. Fruit not winged ; two flowers on each 

 pistillate bract. The wood is very durable and yields good 

 charcoal. 



Betula, Birch. Fruit winged, three in each bract (fig. 270). 

 The timber is utilised, and from the Sap Birch wine, which is 

 used medicinally, is obtained. 



MVRICEjE. 



Myrica, Sweet-gale. Dioecious ; four to eight stamens, two 

 stigmas. 



CUPULIFER^. 



Carpinus, Hornbeam. Stamens twelve to each scale ; 

 pistillate catkins slender and loose ; a three-lobed scale 

 (perianth ?) to each pistil, which enlarges with the fruit (fig. 

 313). Used for timber. 



Corylus, Hazel. Stamens eight to each scale ; two pink 

 stigmas to each ovary ; fruit a nut in a leafy involucre. Filberts, 

 Cobs, and Barcelona nuts are varieties of Hazel. 



N 2 



