GLOSSARY. 313 



PENTAHEDRICAL (pente, Gr. five, + hedron, a side). 



Having five sides. 

 PERICARPIUM (peri, Gr. around, 4. carpos, a fruit). 



Covering or tegument of fruit. 

 PERIDERM, PERIDERMIC (peri, Gr. around, + derma, skin). 



The enclosing membrane. 

 PERIPHERAL (peri, Gr. around, + pkero, to carry). 



The outer portion of a circle. 

 PILIFEROUS (pilus, L. a hair, + fero, I bear). 



Bearing hairs, hairy. 

 PLICATE (plica) L. a plait). 



Folded, or plaited. 

 PLUMOSE (pluma, L. a feather). 



Feathery, or like a feather. 

 POLYMORPHISM, POLYMORPHIC, (polus, Gr. many, _|_ morphos, 



form). 



Having many forms. 

 PRIMORDIAL (primordium, L. beginning). 



Original, existing from the beginning. 

 PROTHALLUS (pro, Gr. before, -f thallus, a frond). 



The false thallus first formed on germination of a 



spore. 

 PSEUDO-BRANCHES (pseudos, Gr. false, -f branches). 



False branches, or resembling branches. 

 PSEUDO-RAMOSE (pseiidos, Gr. false, -f ramus, a branch). 



Having false branches. 

 PYRIFORM (pipus, L. a pear, 4. forma, form). 



Pear-shaped. 

 QUADRI-RADIATE (quadrum, L. four-square, _|_ radiate). 



With four radii, or rays. 

 QUATERNATE (quciter, L. four times). 



Arranged in fours. 

 EAMULUS (diminutive of ramus, L. a branch). 



A small, or secondary branch. 

 RENIFORM (renes, L. the kidneys, -[-forma, shape). 



Kidney- shaped. 

 REPLICATE (re, L. back, + plico, I fold). 



Folded back. 

 RESTING-SPORE. A spore which becomes quiescent, or rests for 



a period, more or less long, before germination. 

 RHIZOID (rhiza, Gr. a root, + eitlos, resemblance.) 



Resembling, or analogous to, a root. 

 ROSTRATE (rostrum, L. a beak). 



Terminating with a beak. 

 SACCATE (saccus, L. a sac). 



In the form of a bag. 

 SCALARIFORM (scala, L. a ladder, + forma, shape). 



Barred or crossed like the steps of a ladder. 



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