Pseudonaclecli 



Fseadostsuros 



used up in the formation of the 

 chromosomes (Wager) ; Paeudo- 

 nu'cleus (+ Nuclei's), name given 

 by Gates to a cavity containing 

 chromatin masses surrounded by a 

 definite membrane during the process 

 of cytomixis ; Pseudoparaph'yges 

 pi. (-f Paraphysis), organs growing 

 in company with paraphyses but of 

 much gi-eater development (Trav- 

 erso); Pseudopar'asite (+ Para- 

 site), a false parasite, eitlier (a) a 

 Saprophyte, or {b) an Epiphyte ; 

 Pseudoparench'yma (+ Parenchy- 

 ma), a tissue resembling parenchyma, 

 but the cells not organically related ; 

 pseudoparenchy'matous, possessing 

 8}Tnphyogenetic cellular tissue ; 

 Pseudoper'iantli (+ Pepianth), the 

 cup-shaped envelope of the arche- 

 gonium which develops after fer- 

 tilization in certain Hepaticae ; 

 Pseudoperid'ium (+ Peridium), em- 

 ployed by Maire for the exterior of 

 the sporophore in Endojjhylhnn ; 

 the peridium of the aecidinm of the 

 Uredineae generally ; adj. pseado- 

 perid'ial ; Pseudoperithe'cium ( + 

 Peeithecium), a covering of sporidia 

 resembling a perithecium; Peeudo- 

 phel'loid, cork-like tissue in Angio- 

 pteris (Hannig); pseudophotomet'ric 

 (-f Photometric), used of leaves 

 which do not conform to the action 

 of light, as in Sedvm (\\'iesner) ; 

 pseudophyllop'odous (+ phyi.lopo- 

 pous), in Hierachiin when the lower 

 leaves of a normally aphyllopodous 

 species are more or less appressed to 

 the ground (Zahn) ; Pseudoplank'ton 

 (-f Plankton), organisms accident- 

 ally found floating (Forel); Pseudo- 

 plasmo'dium (+ Plasmodium), myx- 

 amoebae aggregating into colonies, 

 the first stage of fructification in 

 Acrasieae (Olive) ; Pseu'dopode = 

 Pseudopodium ; Pseudopleus'ton( + 

 1't,eitston), the pollen of Conifers 

 floatinir in quantity (Schroeter) ; 

 pseudop'odal (ttoGs, irohhs, a foot), 

 resembliug a pseudopodium (Archer) ; 

 Pseudopod'ium (-f Poditm), (1) a 

 temporary changeable foot-like pro- 



312 



trusion of protoplasm in the Plas- 

 modium of Myxogastres ; (2) the 

 staik-like extremity of the oophyte 

 bearing a sporogonium or gemmae in 

 Mosses, etc. ; Pseudo-polyemb'ryony 

 (+ Polyembryony), the occurrence 

 of either (a) coalescence of ovules, 

 {b) division of the nucellus, or (c) 

 development of several embryo-sacs 

 in one nucellus (A. Ernst); Pseud'o- 

 pore (4- Pore), in Sphagnum leaves, 

 thickened rings without perforations 

 (Russow); Pseudopyre'nium (+ Py- 

 RENIUM), the perithecium of "cer- 

 tain Fungals " (Lindley) ; Pseudora' 

 mulus (+ Ramulus), a spurious 

 branch in certain species of Nostoc, a 

 young filament adherent to an older 

 one for part of its length ; Pseudo- 

 ra'phe ( + Raphe), an apparent 

 raphe in Djatoras, a transitional 

 form towards its entire disappear- 

 ance ; Pseudoreduc'tion (+ Reduc- 

 tion), (1) the period of tetrad form- 

 ation in nuclear division (Rueckert) ; 

 (2) an association in prophase of 

 somatic chromosomes in pairs (Gre- 

 goire) ; Peeu'dorhize (A^C«> a root), 

 (1) a root shaped like a turnip or 

 carrot in bulbous Monocotyledons 

 (Royer) ; (2) a root-like mycelial 

 structure which develops at the base 

 of a carpophore from its cells ( Fayod) ; 

 Pseud'o-shnib, produced by the 

 growth of suckers after cutting back 

 of Ulmiis, etc. ; Pseud'osperm, Fsrv- 

 dospcr'mium {(nr^p/na, a seed), (1) 

 any fruit which is indehiscent and 

 resembles a seed, as the "nuts" or 

 carpels of Labiatae ; (2) C Mac- 

 Millan's term for plants possessing 

 facultative seeds ; e. g. Selaginrlla ; 

 c,f. EusPERM ; adj. pseudosper'mic, 

 pseudosprr'miais, pseudosper'mous ; 

 Pseudosporan'ge, Pseudosporan'- 

 gium ( + Sporangium), an organ 

 producing gemmae or propagula, 

 a simulated sporangium (Davis) ; 

 Pseud'ospore {(nropa, a seed), (1) a 

 gemma or asexual vegetative bud ; 

 (2) Olive's term for Microcyst, tlie 

 resting stage of Acrasieae ; Pseu- 

 dostau'ros (-f- Stauros), a broaden- 



