APPENDIX II. 



Pednncle, the stalk of an inflorescence or of a single flower 

 v hen this forms the inflorescence. 



Petiole, the stalki of a leaf. 



Pale, palea, (adj. paleaceous), a chaffy scale ; specifically 

 the upper of the two bracts which, subtend A flower in the 

 Graminea 1 . The palea of the gramineee is most frequently 

 2 -nerved and may possibly represent two connate tepals of 

 the outer perianth whorl. 



Palmate, radiating like the spread fingers of the hand. A 

 palmate leaf may have the segments cut nearly to the base 

 but if the leaf actually becomes compound from the sinuses 

 reaching the petiole it becomes digitate. 



Palmatifid, palmate with the sinuses reaching about half- 

 way down. 



Palmatipartite, palmate with the sinuses reaching beyond 

 the middle. 



Palmatisect, much cut in a palmate manner. 



Palmi-nerved, with the primary nerves radiating from the 

 apex of the petiole. 



PaiKluriform, fiddle-shaped, with the base and end broader 

 than above the base. 



Panicle, a repeatedly branched inflorescence. 



Papilionaceous, shaped somewhat like the flowers of a pea 

 or bean. A typical papilionaceous flower has a corolla with 

 a large posterior petal (standard), two lateral petals (alae, 

 wings), and two anterior petals more or less combined into a 

 keel. 



Papillae, small multicellular outgrowths from the epider- 

 mis. 



Pappus, the scaly, hairy or feathery modified calyx of the 

 fruit of some plants especially of the Compositse. 



