peptic 



pericentricuB 



pep'tic (ireTTTiKos, promoting diges- 

 tion) Fer'ments, those enzymes 

 which convert proteids into pep- 

 tones. 



Pep'tones (TreTrros, cooked), albumi- 

 noids after being acted on by fer- 

 ments, as Proteids, which are the 

 final result of their action ; they 

 are present in germinating seeds ; 

 peptoni'sing, applied to enzymes 

 so acting. 



per-, in Latin compounds increases 

 their force as per-similis, very 

 like. 



Perapet'alum, J (irepl, about + PETA- 

 LUM), any appendage to a petal, a 

 synonym of NECTARILYMA and PA- 

 RAPETALUM ; Peraphyl'lum (<j>v\\ov, 

 a leaf) = PARAPHYLLUM. 



percur'rent (percurrens, running 

 through), extending throughout 

 the entire length. 



Perem'bryum (irepl, about, e/j-ftpvov, 

 an embryo), that part of a mono- 

 cotyledonous embryo investing the 

 plumule and radicle, not externally 

 distinguishable. 



Perench'yma (Try pa, a sack, eyxv/j.a, 

 an infusion), cellular tissue con- 

 taining starchy matter (Stormonth). 



peren'nate, pererinans (Lat.), peren- 

 na'ting = peren'nial^erew'ms (Lat. ), 

 lasting the whole year through ; 

 Peren'nial, is a plant which lasts 

 several years, not perishing nor- 

 mally after once flowering and 

 fruiting ; <~ Herb, the above ground 

 portion dies each year, the root 

 persisting ; <~ Mon'ocarp, applied 

 by Mobius to such plants as Agave 

 americana, Linn., which live long, 

 but die after once flowering. 



per'fect, perfec'lus (Lat., complete), 

 (1) applied to a flower which is 

 hermaphrodite ; (2) of an organ 

 which has all its constituent mem- 

 bers. 



perfo'liate, perfolia'tus (per, through, 

 folium, a leaf), used when a stem 

 apparently passes through a leaf, 

 as in Bupleurum perfoliatum, Linn. 



perforate, perfora'tus (Lat., pierced), 

 pierced through, or having trans- 



lucent dots which look like little 

 holes, as in Hypericum perforatum 

 Linn. 



perfos'sus (Lat., dug or pierced 

 through), perfoliate. 



perfu'sus (Lat., poured over), com- 

 pletely covered. 



pergame'neous, -neus (pergamena, 

 parchment), like parchment in 

 texture; pergamenta'ceous, -ceus 

 ( + aceous), resembling parchment. 



Perian'dra, pi. (Trepl, about, &vyp,' 

 avSpos, a man), the bracts of the 

 male inflorescence in Mosses ; 

 perian'dricus (dvSpiKos, manly), used 

 of a nectary when it is ranged 

 round the stamens ; Perianth, 

 Perian'thium (&vdos, a flower), (1) 

 the floral envelopes, calyx or cor- 

 olla, or both ; (2) in Hepaticae the 

 inflated envelope surrounding the 

 fertilised archegonium, the COLE- 

 SULE or vaginule ; perian'theus, 

 perianthia'nus, relating to or pos- 

 sessing a perianth ; Perianthoma'nia 

 (fMvLa, madness), an abnormal mul- 

 tiplication of perianth segments ; 

 periaxlal (&fav, an axle) Wood, 

 the so-called outer wood, as in the 

 stems of Bignoniaceae. 



Periblaste'sis ( + BLASTESIS), the en- 

 velopment of gonidia by surround- 

 ing tissue. 



Per'iblem (ireptp\r}/j.a, clothing), a 

 layer of nascent cortex beneath 

 the epidermis. 



pericalyc'ius (irepl, about + CALYX), 

 = PERISTAMINEUS ; Pericam'bium 

 (+ CAMBIUM), thin walled cells of 

 the central cylinder in contact with 

 the inner face of the endodermis ; 

 the pericycle ; Pericarp, Pericar'p- 

 ium (Kapirbs, fruit), (1) the wall of a 

 fructified ovary ; (2) applied also 

 to the wall of the capsule in 

 Mosses ; (3) improperly used of 

 the protective husks surrounding 

 certain fruits ; adj. pericar'pic, 

 pericar'pial, pericarpia'lis ; peri- 

 cen'tral (Kevrpov, a sharp point) 

 Cell = AUXILIARY CELL; Peri- 

 car'yoplasm = PERIKARYOPLASM ; 

 pericen'tricus, applied to perigyn- 



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