DICTIONARY OF BIOLOGICAL EQUIVALENTS 



Pla-Pre 



Plattendrehflügler m. plant with Ailan- 

 thus type of flying organs of seed. 



Plattenepithel n. flattened epithelium. 



Plattenge webe n. lamellar tissue. 



Plattenknochen m. lamellar bone; flat 

 bone. 



Plattenkultur /. Petri-dish culture. 



Plattenwürmer m.^pl. J^.): Platyhel- 

 minthes. 



plattgedrückt a. flattened. 



Platthufer m.pl. (zo.): Hyracoidae. 



Plattkäfer m.pl. (ent.): Cucujidae. 



Platzregen m. pelting rain. 



plazentenbrüchig a. placentifrageal de- 

 hiscence (of capsule). 



Plenterwirtschaft /. (for.): selection 

 system. 



Pochkäfer m.pl. (ent.) : Anobiidae; Ptini- 

 dae. 



Pockengift n. virus of smallpox. 



Polarisationsebene /. plane of polariza- 

 tion. 



Polarisationseinrichtung /. polarizing 

 attachment. 



Polarisationsvorrichtung /. polarizing 

 attachment. 



Polarisationswinkel m. polarizing-angle. 



Polfaden m. polar thread. 



Polkappe /. polar cap. 



Polkömer n.pl. polar granules. 



Pollenblume /. flower which produces 

 pollen but not nectar. 



Pollenfach n. pollen sac. 



PoUenkammer /. pollen chamber. 



PoUenkorn n. pollen grain. 



PoUenmal n. pseudo-nectar guide. 



Pollenmasse/, massula; mass of adhering 

 pollen grains. 



Pollenmutterzelle /. pollen mother cell. 



poUennachreif a. protogynous. 



Pollensack m. pollen sac. 



Pollenschlauch m. pollen tube. 



Pollenschlauchkern m. vegetative nu- 

 cleus of pollen grain. 



Pollenübertragung /. transfer of pollen; 

 pollination. 



poUenvorreif a. protandrous. 



PoUinationstropfen m. liquid excreted by 

 micropyle. 



Polplatte /. pole field. 



Polster n. pulvinus; cushion. 



polsterartig a. pulvinate. 



Polsterbildner m. bunch grass; cushion- 

 forming plants. 



Polstergewächse n.pl. cushion plant. 



Polsterlandschaft /. region with vegeta- 

 tion consisting of single tufts. 



Polsterlaubmoos n. cushion-forming 

 liverwort. 



Polsterpflanze /. mat-plant; cushion 

 plant. 



Polypengehäuse n. polyparium. 



Pore /. pit; foramina. 



Porenkanal m. pit channel; part of a 

 branched pit. 



Porenkapsel /. capsule with poricidal 

 dehiscence. 



Porenkork m. strip of periderm in tissue 

 of lenticel. 



Porenplatten f. pi. sensillae placodae. 



Porenzelle (der Spaltöffnung) /. guard 

 cell of stomate. 



Porzellanfilter n. porcelain filter. 



positive Spannung /. turgor; positive 

 tension. 



Potentialgefälle n. electrical gradient. 



Pottasche /. potassium carbonate. 



Prachtkäfer m.pl. (ent.): Buprestidae. 



Prachtkerze /. Gaura. 



Prachtspiere /. Exochorda. 



Prälabrum n. (ent.) : clypeus. 



präoral a. preoral. 



Präparatenfischer m. section lifter. 



Präparatenschachtel /. microscope-slide 

 box. 



Präparierlupe /. dissecting magnifier. 



Präpariemadel /. dissecting needle. 



Präpariertisch m. dissecting table. 



Präsentationszeit /. presentation time. 



Prätergit n. (ent.) : protergum; pronotum. 



Präventivimpfung /. preventive inocula- 

 tion. 



Präventivspross m. water-shoot. 



Preisselbeere /. cranberry. 



155 



