perforate 



Fericoliuxn 



holes, as in Hypericum perforatum, 

 Linn. 



Per'forms, pi., in Rosa, those with 

 doubly serrated leaves and glabrous 

 calyxes (Almquist). 



perfo8'8ti8(Lat.,dugor pierced through), 

 perfoliate. 



perfa^Bus (Lat., poured over), com- 

 pletely covered. 



pergame'neoas, -neus {pergamena, 

 parchment), like parchment in 

 texture ; pergamenta'ceouB, -ceus 

 (+ ACEOUs), resembling parchment. 



Ferlachene {irepl, about, + Achene), 

 a term including Epiachkne, for 

 an Achene arising from a partially 

 superior flower (Villari) ; Perian'dra, 

 pi. (av^p, avSphs, a man), the bracts 

 of the male inflorescence in Mosses ; 

 perian'dricus [avSpiKos, manly), used 

 of a nectary when it is ranged 

 round the stamens ; Fer'ianth, 

 Perian'thiam {6.vQos, a flower), (1) 

 the floral envelopes, calyx or cor- 

 olla, or both ; (2) in Hepaticae the 

 inflated envelope surrounding the 

 fertilized archegonium, the Colk- 

 SULE or vaginule ; perian'theuB, 

 perian'thial, relating to the Peri- 

 anth ; perianthia'nuB, relating to 

 or possessing a perianth ; Periantho- 

 ma'nia {fxavia, madness), an abnormal 

 multiplication of perianth segments ; 

 periax'ial ( + axial) Wood, the 

 so-called outer wood, as in the 

 stems of Bignoniaceae ; Periblast 

 (jSA-oo-rbs, a bud), a misprint for 

 Peru'Last ; Periblaste'sis ( + Blas- 

 TESis), the envelopment of gonidia 

 by surrounding tissue. 



Per'iblem (•Trep/jSATj^o, clothing), a 

 layer of nascent cortex beneath the 

 epidermis. 



pericalyc'ius (irepi, about -f- Calyx), 

 = PERI9TAMINEUS J Pericam'blum 

 (+ Cambium), thin walled cells of 

 the central cylinder in contact with 

 the inner face of the endodermis ; 

 the pericycle ; adj. pericam'bial ; 

 ^ Sheath, a rhizogeuous tissue 

 within the endodermal sheath ; 

 Per'ioarp, Pericar'pium {Kapirhs, 

 fruit), CI) the wall of a fructified 



ovary ; (2) applied also to the wall 

 of the capsule in Mosses ; (3) im- 

 properly used of the protective husks 

 surrounding certain fruits ; adj. 

 pericar'pic, pericar'pial, pericar- 

 pia'lis ; Pericar'yoplasm = Peki- 

 KARYO plasm ; Perlcau'lome {KavXhs, 

 stalk), the outer portion of the 

 stem, including the leaf-trace 

 bundles, derived theoretically from 

 the fused bases of the leaves (Po- 

 tonie) ; pericen'tral (Kevrpov, a sharp 

 point) Cell = Auxiliary Cell ; 

 pericen'tricus, applied to perigyn- 

 ous stamens arranged concentric- 

 ally with the calyx ; Per'ichaeth 

 (Crozier) = Perichaetium ; Peri- 

 chae'tium {xairn, a mane), (1) the 

 involucre around the base of the 

 seta in Mosses ; (2) W. J. Hooker's 

 name for the perianth in Hepaticae ; 

 perichae'tial perichaetia'lis, relating 

 to the same, as ~ Bracts, '^ Leaves, 

 the organs composing the peri- 

 chaetium itself in Mosses, and the 

 involucre in Hepaticae ; Per'ichyle 

 (xwA^s, juice), a plant whose water- 

 storing ti.ssue is between the epi- 

 dermis and the chlorenchyma, as 

 Bhizophora ; perichyrous, employed 

 of the aqueous tissue when between 

 the epidermis and chlorenchyma 

 (A.Schimper); Periclad'ium (kAciSos, 

 a branch), the sheatliing base of a 

 leaf when it surrounds the support- 

 ing bianch ; pericli'nal (kAiVoj, I 

 bend down), curved in the same 

 direction as the surface or circum- 

 ference ; ■-' Chimae'ra = Graft- 

 HYBHID ; '^ Planes, planes wh ch 

 conform to the exterior; Per'icline 

 =PERiCLiNnJM; Per'iclines, pi. peri- 

 clinal walls ; Pericli'nium {kkIvt], a 

 bed), the involucre of the capitulum 

 in Compositae ; Periclinoi'des, X a 

 false involucre formed of the scales 

 of the receptacle in Compositae, sur- 

 rounding the sides of an elevated 

 receiitacle at its summit, as in 

 Evax ; Pericoc'cium, that portion 

 of the protoplasm which envelopes 

 the nucleus; in Germ. Kemtasche 

 (Hanstein) ; Pericorium % {KoKehs, 



273 



