Glossary 



PROLIFEROUS (proles, offspring; fero, to bear), applied to an organ which gives rise 

 to secondary ones of the same kind. 



PROTEAN (Gr. the name of a sea-god), exceedingly variable; changeable in form. 



PRO'TEID, albuminoid. 



PROTO- (Gr. first), an element in compound words of Greek origin meaning ''first" 

 and denoting precedence in time, rank and degree. 



PROTOBASID'IUM, basidium divided by transverse septa into four cells, each giving 

 rise to a spore from a laterally inserted sterigma, or a basidium divided longi- 

 tudinally by septa intersecting each other at right angles into four cells terminat- 

 ing in a long, tubular sterigma. 



PROTOPLASM (Gr. first, + anything formed or molded), the nitrogenous fluid of 

 variable composition found in living cells ; it is the vital substance into which all 

 food is assimilated, and from which all parts of the plant are formed. 



PROX'IMAL (proximus, nearest), pertaining to the base or extremity of attachment. 



PRI/INATE, PRU'INOSE (as if pruinatus, <^pruina, hoar-frost), covered with a bloom 

 or powder so as to appear as if frosted. 



PRUN'IFORM (prunum, a plum; forma, form), plum-shaped. 



PSEUDO (Gr. false, counterfeit, etc.), prefix signifying "false" or "spurious." 



PSEUDO-PAREN'CHYMA, a fungus tissue formed of closely woven and felted hyphal 

 threads, which on section has the appearance of the cellular structure of true 

 parenchyma. 



PUBES'CENCE (pubescen(t-) + ce), general term to describe hairyness; specifically 

 covered with short, soft, downy hairs. 



PUBES X CENT (pubes, of mature age), covered with soft, short hairs, downy; hairy. 



PULLULA'TION (pullulare, pp. pulhtlatus, pullulate), a mode of cell multiplication in 

 which a cell forms a protuberance on one side which enlarges to size of parent 

 cell and is cut-off from it by a dividing wall ; sprouting ; budding. 



PULVERA'CEOUS, PULVERULENT ( pulvis (pulver), dust, powder), covered as if with 

 powder or dust. 



PUL'VINATE (pulvinatus, <^pulvinus, a cushion), cushion-shaped. 



PUNCTATE (punctatris, <^punctus, a point), dotted with points. 



PUNC / TIFORM (punctum, point ; forma, form), like a point or dot. 



PUS'TULAR, PUSTULATE (pnstulatus, pp. of pustulare, to blister, <j>ustula, a blister, 

 pimple), having low elevations shaped like blisters or pustules. 



PUTRES'CENT, soon decaying. 



PYR'IFORM (pyrum, a pear; forma, form), pear-shaped. 



QUAD-, QUADRI- (quadru, four-cornered, square, fourfold, <^quattuor, four), prefix 



signifying "four." 

 QUAD'RATE (quadratus, square, pp. of quadrare, make four-cornered, square, <quadra, 



a square), square; sometimes used to mean "of four equal parts." 

 QUATER'NATE (quaternatus , <^quaterni, four each), arranged in groups of four. 



RADIATE, RA'DIATING (radiatus, pp. of radiare, furnish with spokes, give out rays, 



shine), arranged like the spokes of a wheel. 

 RAD'ICATING (radicatus, pp. of radicare, take root), rooting; having root-like strands 



which penetrate the matrix. 



RADICLE (radicula, dim. of radix, a root), a rootlet. 

 RA'HEAL, RA'MEOUS (rameus, a branch), growing on twigs or branches. 



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