PIPERITA ZPIper, pepper] An order of 

 plants in the Fragmenta rnethodi naturalis of Lin- 

 isseus. The plants of this order are thefe, A- 

 rum, Dracontium, Calla, Acorus^ Saururus, Pa- 

 ths, Piper, Phytolacca. 



PISTILLUM, a peftil. The little upright 

 column which is generally found in the centres 

 of every flower. According to the Linnaeani 

 fyftem, it is the female part of generation, 

 ■whofe office is to receive and fecrete the Pollen, 

 and produce the fruit. It confifts of three; 

 parts, viz. Germeriy Stylus, and Stigma. 



PIXIDATUM Folium [a Pixis, a box] a 

 fpecies of the articulatum, when one leaf is as 

 it were let into the other, Ji unum folium in fo" 

 veam. alterius quaji immiititur, Ludw . as in the 

 Equifetum & Ephedra. 



PLACENTA, Boerhaave. See Receplaculum. 



PLACENTATIO {Placenta'] regards the Co- 

 tyledons of the feed, cotyledonum difpofttio fub ipfa 

 feminis germinatione . Plants, as to placentation, 

 are acotyledones, monocotyleaoncs^ dicotyledones , or 

 polycotyledones. 



PLANIPETALUS Flos [planus, plane, flat, 



