BOTANICAL TERMS. 259 



from the same part of the stem, but on opposite 

 sides. [Plate 3.] 



P 



PAPILIONACEOUS ; Butterfly-shaped. Some blossoms 

 are so called from their resemblance to a butterfly, 

 in Latin Papil'io. The term is applied generally to 

 plants of the class Diadelphia. [Plates 2. and 19.] 



PARASITICAL ; growing upon some other plant, but 

 not in the ground : as Miseltoe. 



PENTAGYN'IA ; five pistils in each flower. The name 

 of one of the orders in the classes Pentandria^ 

 Decandria, Dodecandria, Icosandria, and Polyandria. 

 [Plate 12. ] 



PENTAN'DRIA ; five stamens in each flower. The name 

 of the fifth class. [Plates 2. and 8.] 



PERENNIAL ; lasting for many years, or at least 

 more than two. 



PERFECT FLOWER ; having both stamens and pistils. 

 See IMPERFECT. 



PERMANENT ; applied principally to the calyx re- 

 maining on the plant after the fruit is ripe ; as in 

 the Mouse-ear [Plate 8.] ; and Ground Ivy. 

 [Plate 16.] 



PET'ALS ; the leaves which form the blossom, or 

 corolla, of a flower. They are generally coloured. 

 [Plate 1.] 



PILLAR; a little shaft, or stem, supporting part of 

 the down of some seeds ; as in Dandelion. [Wood- 

 cut, page 210.] The term is applied also to the 

 receptacle, around which the capsules are placed, 

 in the Mallow. [Plate 18.] 

 s 2 



