Parasite 



paroecious 



its host and then continues to feed 

 on it; parasit'ic, deriving nourish- 

 ment from some other organism ; ■-' 

 Castra'tion, sterility induced by the 

 effects of a parasite ; parasiti'sed, 

 infected by a parasite ; Par'asitism, 

 the state of preying upon another 

 organism ; Parasi'tus spu'rius = 

 Epiphyte ; Paras perma'tia <+ 

 Spermatia), small reproductive 

 bodies resembling spores, found in 

 some Algals (Lindley). 



Paras'tades {irapaaThs, a door-post), 

 the coronal rays of Fassiflora ; cf. 

 Parapetala. 



Parasta'men (Trop^, beside, + Stamen) 

 or Paraste'mon {<TT-{)fXMu, a filament), 

 an abortive stamen, a staminodium ; 

 Parast'ichy, Parastich'ics {(rrixos, a 

 series), a secondary spiral in phyllo- 

 taxis; Parastro'phe {crTpo(pi}, tm-n- 

 ing), employed by Sena in place of 

 Apostrophe ; Par'astyle (f- Style), 

 an abortive style ; Parasym'biont 

 {<Tvfj.&i6o}, I live with), one of the 

 members constituting Parasym- 

 Biosis ; Parasymbio'sis {+ Sym- 

 biosis), (1) when the hyphae of a 

 parasite envelope the Algal constitu- 

 ents of a Lichen and inflict injury 

 (Zopf) ; (2) a synonym of Parasa- 

 prophytism, etc. (Elenkin) ; Para- 

 synap'sis (+ Synapsis), the parallel 

 pairing of chromosomes; adj. para- 

 synap'tic ; Parasynde'sis {+ Synde- 

 sis) = Parasynapsis ; paratac'tic 

 raKThs, arranged), used of the dis- 

 position of sori on the aborted vein, 

 which does not prolong the axis 

 (Prantl); Paratag'ma {rdyixa, an or- 

 dinance), Pfefi'er's terra for a mass of 

 Micellae ; Parathe'cium (^^ki?, a 

 case), the circumscribing walls of 

 the Lichen thecium ; parathermo- 

 trop'ic (06pyLi6s, warm ;rpoTrh, a turn- 

 ing), proposed by Macfarlane for 

 paraheliotrophic, in such cases as the 

 movements of leaves in Drosera, 

 Oxalis and Mimosa ; paratonlc 

 {r6uos, tension), effect of light in 

 retarding groAvth ; paratrach'eal 

 (Tpoxeio, the windpipe), applied to 

 wood -elements aiTanged about the 

 vessels ; paratransa'pical ( -f trans- 



apical), sections parallel to the 

 straight transapical axis or plane in 

 Diatoms (0. Mueller); paratransver'- 

 aan (trwnsversvs, lying across), used 

 of the planes parallel to the trans- 

 versan plane of a Diatom frustule 

 (0. Mueller) ; Par'atroph = Para- 

 site ; paratroph'ic {rpo(p^, food), 

 able to exist only in animals or 

 plants, (C. Jones) ; Parat'ropism 

 {irpoiT^, a turning), shortened from 

 Parat-lelotropism ; Par'atype 

 {rviros, a type), (1) a specimen be- 

 longing to the original series, but 

 not the type selected by the author ; 

 (2) Schroeter's term for subordinate 

 groups, as " Curvuletum " or " Fir- 

 metum," from Carex curva and C. 

 firma ; paraval'var (-|- Valve), ap- 

 plied to those planes which are 

 parallel to the valvar plane of a 

 Diatom, either epithecal or hypo- 

 thecal (0. Mueller). 

 parelli'nus (Mod. Lat., fi-om parellus ; 

 Fr. parelle, dye-lichens, as Lecaiwra 

 parella), litmus violet (Hayne). 

 Parench'yma {irap^yx^^i I pour in be- 

 side), used by Grew, and since his 

 time for the tissue composed of cells 

 more or less isodiametric, especially 

 such tissue as the pith and meso- 

 phyll; r^ Trach'eids, short pithed 

 spiral ducts or vessels ; parenchy'- 

 matous, consisting of parenchjnma, 

 spongy, porous. 

 Parich'nos (Trapa, beside; Tx''os, a foot- 

 print), the two lateral prints on the 

 leaf-scar of Lepidodendreae. 

 Parties (Lat., a house wall), pi. Par'- 

 ietes, the wall of any organ ; pari'- 

 etal, parieta'lis, borne on or belong- 

 ing to a wall ; ^ TJ'tricle, used by 

 Is oil for the layer of protoplasm 

 next the cell -wall; Pari'etin, the 

 colouring -matter found in the 

 Lichen, Physcia 2MTietina, De Not. 

 paripin'nate,^ari/>z?ijja72ts (Lat.), pin- 

 nate, with an equal number of leaf- 

 lets, that is without a terminal 

 one. 

 parme'leine, pannelioid {il^os, resem- 

 blance), like the genus Parmelia, 

 having shield-like apothecia. 

 paroe'cioQS (irapa, beside ; oiKost a 



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