nuciferoaf 



Nucleui 



niioif'erous {nux, a nut ; fero, I bear), 

 bearing or producing nuts ; "nu'ci- 

 form {forma, shape), nut-like in 

 shape. 



na'clear {nucleus, a kernel), pertaining 

 to a nucleus ; -- Associa'tion,- the 

 fusion of protoplasts which contain 

 them ; ~ Bar'rel, a stage immedi- 

 ately preceding the nuclear spindle; 

 '-' Disc, the mother-star stage ; -<- 

 Divis'ion, either direct by fiagmcn- 

 tation,.or indirect by karyokinesis, 

 the entire history of the division of 

 the cell-nucleus; ~ Fi'brils, chromo- 

 somes ; cf. Spindle-fidres; --' Fira- 

 ment, the chromatin or chromatic 

 tilaraent; -' Fu'eion, the union of 

 two nuclei; c/. Syngamy; '-Osmo'sis, 

 the theory that the nucleus enlarges 

 in the manner of a sap-vacuole 

 (Lawson) ; --' Plate, the demarcation 

 of the daughter- cells in nuclear- 

 division, see Motheh-Stak ; '-' Ee- 

 dao'tion, v,'hen a smaller niunber of 

 segments occur than at the previous 

 divisions of the parent- cycle (Hartog) ; 

 '~ Ring, the equatorial arrangement 

 of chromosomes ; c/. Motuer-Star; 

 -^ Sap, the intermediate matrix 

 (Schwarz) ; -^ Spin'dle, slender fila- 

 ments from the poles, and crossing 

 the equator, beginning in the skein 

 stage, and completed in the mother- 

 star ; -^ Star = Aster ; -^ Threadfl = 

 Spindle-fibres ; nu'oleated, having 

 a nucleus or nuclei. 



ITn'clei ; pi. : Blad'der ^ , found in 

 latex, which seem to increase by 

 direct division (Molisch); Giant -- of 

 certain species of Aloe, remarkable 

 for their size; Thread--', long draAvn 

 out, in the mucUage of Amai-yllideae 

 (Molisch). 



Nu'olein, Strasburger's term for Chro- 

 matin. 



Nu'oleo-oen'trosomes {nucleus, a ker- 

 nel), a term used by G. Karsten in 

 describing the nuclear division of 

 PsUotum triquetrum, Sw.; probably 

 the same as Strasburger's ' * Secretion 

 bodies"; <-' Hy'aloplasm, Stras- 

 burger's word for Linin ; <-' Id'io- 

 plasm, the formative part of the 



nuclear hyaloplasm ; --' Mi'croflomei 

 (Strasburger) = CHROMATrN ? Ku- 

 cleochyle'ma {x<J><hs, juice), Stras- 

 burger's term for the fluid which 

 fills the spaces in the Linin. 



nn'cleolate, na'cleolated {nucleus, a 

 kernel), possessing a nucleolus ; Ntt'- 

 cleole, Nucle'olus, a sharply defined 

 point in the cell-nucleus ; Nncle'olo- 

 Nucle'olus, = Endonucleus ; Nu'- 

 cleophy'ses (<^i5w, I grow), tubular, 

 septate projections in certain Fungi 

 which correspond to the base of th& 

 peritheciura, and ultimately become 

 ascophyses ; Nu'cleoplasm {'jr\«(<r/ta, 

 moulded), nuclear protoplasm, the 

 nucleo-hyaloplasm of S. Vines ; 

 nucleoplas'mic Ten'sion, after cell- 

 division when the increase of proto- 

 plasm and nucleus cannot proceed 

 equally ; this tension causes an 

 increase of the nucleus and chro- 

 matin (R. Hert\vig) ; Nuoleopro'teid 

 ( -\- Proteid), any protein which is 

 a characteristic constituent of the 

 nucleus. 



Nu'cleuB (Lat., a kernel), (1) the kernel 

 of aa ovule or seed, the Nucellus ; 

 (2) an organized proteid body of 

 complex substance ; it contains one 

 or more nucleoli, and ; divides either 

 directly by Fragmentation, or in- 

 directly by Karyokinesis, other- 

 wise called Mitosis; (3) the hilum 

 of a starch granule ; (4) in Lichens, 

 the disk of the apothecium, con- 

 tainiug asci ; (5) in Fungi, the 

 centre of the perithecium ; (6) a 

 clove or young bulb ; -^ Bar'rel = 

 NUCLEAR Barrel ; -^ of the Em^bryo 

 Sao, the secondary nucleus; '*' of 

 O'osphere, that in the oosphei-e (female 

 pronucleus) with which a sperm - 

 nucleus (male pronucleus) coalesces 

 to form a germ nucleus ; closed ^ , 

 that kind of nucleus which occurs 

 in the higher plants, cf. Open ~ ; 

 gam'eto- -^ , the nucleus of a gamete ; 



fe'n'erative -^ , an active nucleus in 

 aryokinesis; Grerm '^, a nucleus 

 resulting from the fusion of a male 

 and female pronucleus ; cf. Pro- 

 nucleus ; O'pen -^ , the central body 



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