peptic 



pericentricus 



pep'tic (wewTLKos, 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 (nepl, about + PETA- 

 LTJM), any appendage to a petal, a 

 synonym of NEOTARILYMA and PA- 

 RAPETALUM ; Peraphyl'lum (^AXo?, 

 a leaf) = PAKAPHYLLUM. 

 percur'rent (percurrens, running 

 through), extending throughout 

 the entire length. 



Perem'bryum (irepl, about, euppvov, 

 an embryo), that part of a mono- 

 cotyleclonous embryo investing the 

 plumule and radicle, not externally 

 distinguishable. 



Perench'yma (irripa., a sack, e'7%t^a, 

 an infusion), cellular tissue con- 

 taining starchy matter (Stormonth). 

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

 na'ting = peren'nial, jjeren'ras (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' feet, perfec'tu* (Lat., complete), 

 (1) applied to a flower which is 

 hermaphrodite ; (2) of an organ 

 which has all its constituent mem- 

 bers. 



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

 folium, a leaf), used when a stem 

 apparently passes through a leaf, 

 as in Buplmruin perfoliatum, Linn, 

 per'forate, 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. 



pergaine'neous, -neus (pergamena, 

 parchment), like parchment in 

 texture ; pergamenta'ceous, -ceus 

 ( 4- aceous), resembling parchment. 



Perian'dra, pi. (Trept, about, dv^p, 

 avSpos, a man), the bracts of the 

 male inflorescence in Mosses ; 

 perian'dricus (di>5pu<6s, manly), used 

 of a nectary when it is ranged 

 round the stamens ; Perianth, 

 Perian'thium (tivOos, a tiower), (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 : Ferianthoma'nia 

 (ftavia, madness), an abnormal mul- 

 tiplication of perianth segments ; 

 periax'ial (&wv, 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 (irepfjSX^a, clothing), a 

 layer of nascent cortex beneath 

 the epidermis. 



pericalyc'ius (irepl, about + CALYX), 

 = PERISTAMINEUS ; Pericam'bium 

 ( + CAMBIUM), thin walled 6ells of 

 the central cylinder in contact with 

 the inner face of the endodermis ; 

 the pericycle ; Pericarp, Pericar'p- 

 ium (/capTTos, 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- 



187 



