Prospory 



proterogynons 



a spore), abbreviated from Proios- 

 pory), the precocious development 

 of spores in certain Algae ; Pros'tady 

 {(TrdSios, steady), the early fruiting 

 stage described above. 



proste'lic {irph, for, -f Stele), when 

 an axis consists of a single concentric 

 bundle (Jeffrey). 



Frosthermotaz'is {irphs, near, + 

 Thermotaxis), movement of bac- 

 teria or zoospores towards warmth ; 

 Prosthigmotax'is = Thigmotaxis. 



pros'trate, prostra'tus (Lat., thrown to 

 the ground), Ijang flat. 



Pros'typus {■np6<TTVTros, embossed) = 

 Raphe. 



Protarbumose {vpuros, first, + Albu- 

 Mose) ; one of the primary albu- 

 moses, soluble in hot or cold water ; 

 protan'drous {av^p , itvdphs, a man), 

 the anthers mature before the pistils 

 in the same flower; Protan'dry, 

 the androecium ripening before the 

 gjTiaecium, the pollen being dis- 

 persed before the pistils are recep- 

 tive ; Protanthe'sis {avdrjcns, flower- 

 ing), the normal first flower of an 

 inflorescence (Guillaid). 



protea'oeous, relating to or resembling 

 the order Proteaceae. 



Pro 'teases, pi., enzymes capable of 

 acting upon proteid substances, 

 both Erephases and Peptases 

 (Vines). 



Protec'tive [protedio, a covering) 

 Lay'er, in leaf- fall, a layer of cells 

 becoming lignified, and then suber- 

 ised, the whole of the protoplasm 

 being withdrawn ; this layer forms 

 the scar after the leaf has fallen 

 (Lee) ; Protec'tive Sheath = Endo- 



DEkMIS. 



Pro'teid, (1) a group of albuminoids, 

 more or less resembling albumen ; 

 with water, the group of proteids 

 constitute the bulk of protoplasm ; 

 (2) used also for ~ Gran'ule'or '~ 

 Plas'tid ; ~ Ba'sis, that portion of 

 protoplasm which is not composed 

 of granules, it is sometimes absent ; 

 '-'Cry8'tal = Crystalloid; ~Graa'- 

 ules, reserve materials, or aleurone 

 granules ; -- Vac'uoles, nuclei of 



cells of the tapetal layer in Gymno- 

 sperms (Chamberlain). 



Pro'tein,a group of complex nitrogenous 

 substances, as Nuclkin, etc. ; adj. 

 pro'teinic ; '~ Crys'tal = Crystal- 

 loid ; ^ Grain = Aleurone Grain; 

 proteina'ceous (-f aceous), per- 

 taining to ])rotein, or composed 

 of it. 



Pro'teism {Proteus, a sea-god able to 

 assume various shapes), the faculty 

 of lower organisms of changing their 

 shape, as in Flagellates, Myxo- 

 mycetes, etc. (Massart). 



Pro'ten (Sachs) = Protenchyma. 



Protench'yma (irpwroy, first ; ^yxvfj.a, 

 an infusion), fundamental or ground 

 tissue ; Protene'ma = Proton em a, 

 the filamentous embryo in Mosses. 



Pro'teo-bacte'ria (Photeid -f Bac- 

 teria), organisms capable of trans- 

 forming nitrogen compounds into 

 protein (Lipman) ; Proteofioa'tion, 

 the process named ; Proteohydrorysis 

 (-f- Hydrolysis), the decomposition 

 of proteids by hydrolysis ; adj . 

 proteohydrolytlc. 



pro'teoid (elSoy, resemblance), applied 

 by Vesque to leaves provided with 

 sclerous cells, as in Protea. 



Proteorysis (-f- Proteid, X'uais, a 

 loosing), the breaking up of proteids 

 by enzymes ; proteoly t ic {X-vriKhs, 

 able to loose), decomposing proteids ; 

 •^ En'zyme, an unorganized ferment 

 which is the active cause in breaking 

 up proteids ; Pro'teose, a soluble 

 albuminoid found in gluten ; Pro'teo- 

 somes {(Tufia, a body), granular pre- 

 cipitations in the cells caused by 

 the action of certain alkaloids, as 

 caffeine ; Proteosynth'esis {a-vvOea-is, 

 composition), building up pro- 

 teids. 



proteran'drous {irp6repos, first ; iiv)}p, 

 avhphs, a man), the anthers ripe be- 

 fore the pistils in the same flower ; 

 protandrous, one kind of dichogamy 

 (Delpino) ; Proteran'dry, the con- 

 dition described ; proteran'thouB, 

 •thus {6.vdos, a flower), where flower- 

 ing precedes leafing, hysteranthous ; 

 proterog'ynous, -Tiws (Yuv^j.a woman), 



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