106 PRACTIGAL BOTANY. 



Ovule : a. primitive seed. 



Pales : 1) the inner husks of grasses, representing petals, an upp 



and lower pale ; 2) the bracts (chafi) on the receptacle of the heai 



of many Composites. • 

 Palmate leaf : a compound leaf with its leaflets spreading from tl 



summit of the common petiole, like the outspread fingers of the han 

 Palmately lobed or veined: lobed or veined in a palmate manner. 

 Panicle : a compound raceme branching irregularly. 

 Panicled, paniculate : arranged in panicles. 

 Papilionaceous: butterfly-like; a term applied to the corolla of mo 



Leguminous plants. 

 Pappus : thistle-down — that is, the hair-, scale-, or margin-like calj 



of *the flowers (florets) of Composites. 

 Parallel-nerved or veined leaves : leaves furnished with m 



branching veins, running lengthwise, side by side (as the leaves i 



most Endogens). 

 Parietal placentae : the seed-bearing ridges of the ovary (or pericarp 



attached to the walls of its cavity. 

 Parted : separated into segments almost to the base. 

 Pectinate : pinnately dissected into narrow and close segment 



somewhat resembling the teeth of a comb. 

 Pedate : palmate or palmately cleft into segments, which are cleft i 



their turn. 

 Pedatelv cleft, lobed, etc. : divided in a pedate manner. 

 Pedicel : the stalk of each particular flower of an inflorescence. 

 Pbdicelled, pedicellate : furnished with a pedicel. 

 Peduncle: the stalk of a single flower, or the main stalk of an infl( 



rescence. 



Pedunclbd : furnished with a peduncle. 



Peltate ; shield-shaped ; a term usually applied to leaves. 



Penta (in compounds of Greek origin) : five. 



Pentamerous : having the parts in fives. 



Pentandrous : with five stamens. 



Pepo : the fruit of the Gourd family, as that of the Cucumber. 



Perennial : lasting from year to year. 



Perfect flower : a flower furnished with both stamens and pistil <. 



Perfoliate leaf : a leaf with the base of its blade apparently pierce 

 by the stem. 



Perianth : the floral envelopes ; a term generally used when thes 

 envelopes can not be readily distinguished into two sots — that ii 

 calyx and corolla. 



