100 POPULAR FIELD BOTANY. 
IcOSANDRIA. PENTAGYNIA, 
CALYCIFLORA, RosAcez#. 
PYRUS. (Pzaz.) 
Generic Character. Calyx superior, of one leaf divided into 
five segments ; petals five, roundish, much larger than the calyx, 
and arising from the edge. /aments awl-shaped, shorter than 
the corolla, anthers oblong, two-lobed. The ,frwit is roundish, 
or oblong, fleshy ; cells two or five, two seeds in each. 
The genus Pyrus contains the Apple, Pear, Service 
Tree, &c. 
Pyrus communis. Wild Pear-Tree. Leaves simple, 
ege-shaped, serrate, smooth, downy when young. Flower 
stalks in an erect cluster, downy and terminal. Flowers 
numerous, snow-white. It grows in woods and hedges, 
and is not common. It is the origin of the garden Pear. 
Pyrus matus. Wild Apple-Tree, or Crab-Tree. Leaves 
simple, serrate; flowers in a sessile umbel, white, tinged 
with rose-colour. This species does not flower till May, 
and is the origin of all the varieties of the Apple. The 
fruit is globular, yellowish, tinged with red, acid and sharp. 
It grows in woods and hedges, and is more rare than the 
Pear. 
Pyros TorMINALIS. Wild Service-Tree, Leaves simple, 
