P o 



tlicnce, and lodges on the furface of the Stir? 

 ma, by whofe moillure it is detained ; which 

 moifture burfts its atoms and diflblvcs them, 

 and thence paffing through the Stylus, impreg- 

 nates the Germen below ; which Gcrmen^ thus 

 impregnated, fwells and produces the fruit. 



POLLEX, the thumb. The fourth degree 

 in the Linnaean fcale for meafuring the parts 

 of plants : the length of the firft joint of the 

 thumb, or a Parifian inch. See Menfura. 



POLLICARIS Caul'is [a Pollex, a thumb] 

 See Pollex. 



POLYADELPHIA [a ^oXv;, multus, many, 

 & A.^iX(p)>i, frater^ a brother] the eighteenth 

 clafs in the fexual fyftem of Linnaeus ; it in- 

 cludes thofe plants which bear hermaphrodite 

 flowers with three or more fets of united Stami- 

 na. The orders are three, t'/z. Pentandria, 

 containing but one genus, viz. Theohromo ; Ico- 

 SANDRIA, containing but one genus, viz. Ci- 

 trus ; PoLYANDRiA, containing 2 genera, viz. 

 Hypericum, Jfcyrum. 



POLYANDRIA [no>,v5, multus, many, & 

 A»)if, maritus, a hufband] the thirteenth clafs 

 in the Linnxan fyftem ; it contains thofe 



plants 



