Plasmodiation 



(ADDITIONS) 



pseudopodal 



fluid albuminous substance of the 

 cell-body (Strasburger) ; Plasmo- 

 dia'tion, the assumed softening of 

 the outline of a spore on its ger- 

 minating (A. 8. Wilson) ; Plasmo- 

 dier'esis (5u/>e<ns, division), the 

 division of protoplasm, which may 

 be (a) akinetic, or (b) karyo- 

 kinetic ; plas'tic Prod'ucts of kata- 

 bolism, those which remain an 

 integral part of the organism 

 (Parker). 



pleophylet'ic (TT\<!OV, more, ^lA??, 

 a tribe), descended from numerous 

 lines, polyphyletic. 

 pleurococ'coid (dSos, resemblance, 



like the genus Pleurococcus. 

 Plug, a growth of protoplasm which 

 closes the pore-openings in the 

 cells of certain Algae, homologous 

 with the STOPPER of Ballia (H. 

 Gibson). 



pluriv'orous (voro, I devour), Dietel's 

 term for those Fungi which in- 

 habit indifferently hosts belong- 

 ing to widely different orders of 

 plants. 



Pneumatho'dium, ( 1 ) cf. PNEUMATODE ; 

 (2) an AERATING ROOT, as in 

 Taxodium. 



Pock'et, of Lemna, a hollow in the 

 leaf, whence a new leaf arises 

 (Potter). 



Pol'linide, a single antheridial cor- 

 puscle (Sirodot). 



Polyan'dry, the state of having many 

 stamens ; pol'yarch (dpxr), begin- 

 ning), when a stele possesses many 

 protoxylem groups ; polycorm'ic 

 (KOP/J.OS, a trunk), expressive of 

 such trees as the fastigiate Irish 

 yew, which has a number of erect 

 radial axes (A. H. Burtt). 

 polygona'ceous, allied to, or resem- 

 bling the genus Polygonum. 

 polyplas'tic, applied to septate 

 spores ; Pol'yplast, add, (2) the 

 multicellular stage of the embryo 

 before the differentiation of cell- 

 layers or organs in Mosses, Ferns, 

 etc. (Parker) ; adj. polyplas'tic, 

 see also POLYBLASTIC ; pol'yspored 

 = POLYSPOROUS. 



Pos'teriform (posterns, last, + FORM), 

 the late derivative of an ancestral 

 form (Kuntze). 



Potamoplank'ton (Trora/uoj, a river, 

 + PLANKTON), the floating vegeta- 

 tion of inland waters. 



Prae'form ( + FORM), an early form, 

 the original ancestral strain 

 (Kuntze). 



prismatic Lay'er, Farmer's term for 

 a layer of cells in Isoetes sur- 

 rounding the xylem cylinder 

 (Campbell). 



Prochro'matin ( + CHROMATIN), the 

 substance of nucleoli (Pfitzner) ; 

 Progemma'tion ( + GEMMATION), 

 when stylospores are given off 

 from basidia, new terminal cells 

 being developed from older or 

 basal cells (Nylander). 



prolific Cells, reproductive cells 

 (Wittrock) ; prolifl'ed, grown out 

 into prolification, as a tuft of 

 leaves from a cone. 



promyce'lial, relating to a promy- 

 celium, 



P ro t ha I'l ogam s, Prothallogam' ia 

 (yd/xos, marriage), vascular Crypt- 

 ogams ; prothal'line, pertaining 

 to a prothallus, or resembling 

 one. 



protoplas'tic, used by Henfrey for 



PROTOPLASMIC. 



prop'er Valves = SPATHE-VALVES. 



Protogonid'ium ( -f- GONIDIUM), the 

 first generation of a succession of 

 gonidia (A. Braun) ; Prototype 

 (TVITOS, a type), the assumed ances- 

 tral form, from which the descend- 

 ants have become modified ; adj. 

 prototyp'ic. 



pseu'do-adven'tive ( + ADVENTIVE) 

 Buds, young branches of Lycopods 

 which have been arrested at a very 

 early stage (Bruchmann) ; Pseudo- 

 chro'matin ( + CHROMATIN) = PRO- 

 CHROMATIN ; Pseu'do-gen'us ( + 

 GENUS), Lindsay's term for a 

 FORM-GENUS ; a condition, not an 

 independent genus ; pseu'do- 

 parenchy'matous, possessing sym- 

 phyogenetic cellular tissue ; 

 pseudop'odal (TTOUS, TroSos, a 



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