Pro-Lycopod 



Propagines 



thetic ancestor of vascular plants, 

 itself derived from the Pro- Hepatic 

 form (Lignier). 

 Proios'pory = Puosi'OiiY. 

 Projectu'ra (Lat., a jutting out), a 

 small longitudinal projection on 

 some stems where the leaf originates ; 

 Prokaryogam'ete {Kapuov, a nut, = 

 nucleus ; yd/xos, marriage), the 

 nucleus of a primary progamete 

 (Maire) ; Prokaryogametisa''tion, 

 quantitative reduction (Maire). 

 Prokine'sis {irpo, before ; Kivrjais, a 

 moving), the early stage of nuclear 

 division, up to the Aster). 

 pro'late {prolatus, a bringing forward), 



drawn out towards the poles. 

 Prole (Crozier), = Pro'les (Lat., off- 

 spring), (1) progeny; (2) sometimes 

 used for race ; (3) J the species. 

 Prole'psis {-rrpoA'nil/is, anticipation), (1) 

 a foreshadowing, something of an- 

 ticipation ; (2) " hurried develop- 

 ment as in the disease known as 

 ' peach-yellows ' where axillary buds 

 develop into branches the first year " 

 (Crozier) ; prolep'tic, anticipatory ; 

 prole'pticus (Lat.), used by Wimmer 

 instead of praecox. 

 Proleta'rian {proletarhcs, a citizen of 

 the poorest class), a name suggested 

 by M'Leod to denote plants having 

 only a small reserve, and self-fer- 

 tilized ; cf. Capitalist. 

 pro'lifer, prolif'erus, prolif erouB {pro- 

 les, offspring ; fero, I bear), bearing 

 ]irogeny as offslioots ; Prolifera'tion, 

 Prolif era' Ho, development prolifer- 

 ously ; T^xoMfic, prolif icus (Si. Lat., 

 producing offspring), fruitful, fer- 

 tile ; '-' Cells, reproductive cells 

 (Wittrock) ; prolifi''ed, grown out 

 into prolitication, as a tuft of leaves 

 from a cone ; Prolifica'tion, the pro- 

 duction of terminal or lateral leaf- 

 buds in a flower ; prolig'erous, -rus 

 (gcro, I bear), proliferous, in Lichens 

 applied to tlie spore-bearing portion 

 of the apothecium (J. S. Henslow) ; 

 cf. Lamina proliuera. 

 prometatrop'ic {irph, before ; ixera, 

 from ; rooiri], a turning), in crossing, 

 when the interchange is between the 



plants, the pollen of one going to 

 the other, but the pollen not from 

 anthers associated with the ovaries 

 fertilized (K. Pearson). 



prominent, prom'inens (Lat., jutting 

 out), standing out beyond some 

 other part. 



Promito'sis {Trph, before, -f Mitosis), 

 simple or ' ' dumb-bell " nuclear divi- 

 sion in Gymnodimum. 



Promycele' = Promyce'lium ( pro, for, 

 + Mycelium), the short-lived pro- 

 duct of tube-germination of a spore, 

 which abjoints a few spores unlike 

 the mother -.spore, and then perishes ; 

 promyce'lial, relating to a promyce- 

 lium ; '~ Spores, those generated in 

 asci (Cooke) ; the Sporidia of conti- 

 nental mycologists (Plowright). 



pro'nate, " inclined to grow prostrate " 

 (Crozier). 



prone, pro'nus (Lat., leaning forward), 

 lying flat, especially the upper face 

 downward. 



Prong-cells, parenchymatous cells of a 

 special form, containing silica bodies. 



Pronu'cleus {pro, for, + Nucleus), the 

 nucleus of a conjugating gamete, 

 which on coalescing with another 

 pronucleus forms the germ-nucleus. 



Proodophyti'a {trp6o5o5, in advance ; 

 (pvrhv, a plant), initial plant forma- 

 tions (Clements). 



Pro-Ophiogloss'um, an assumed ances- 

 tral form of Ophioglossum (Camp- 

 bell). 



Prop, used by Withering for Stipule ; 

 — roots, the aerial roots of Rhizo- 

 phora. 



propaculif'erous ; Propacnlum, errors 

 for PROPAGULiFEROUS ; Propagu- 



LUM. 



prop'agative {propago,& set or layer), 

 tending to increase l/y asexually pro- 

 duced growths, as gemmae, soredia, 

 etc. ; propagaculif' erous (/ero, I bear), 

 bearing off-sets, as Sem'pervivum. 



Propa'gulum (dim. of propago, a set 

 or layer), (1) an off-set ; (2) in 

 Lichens, the powdery organs wliich 

 constitute the Soredia ; Propa'go, 

 pi. Propa'gines, (1) a bulblet ; (2) 

 the branch bent down for layering. 



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