Nannoplankton 



necrocoleopterophilouB 



floating organisms of extremely small 

 size; Nanophan'erophytes, pi. ( + 

 Phanerophytes), shrubs not ex- 

 ceeding 2 metres in height (Kaun- 

 skiser) ; Nanophanerophyti'um, a 

 formation of the shrubs in question ; 

 na'nus (Lat.), dwarf, cf. pumilus. 



napa'ceous {najnts, a turnip ; + 

 ACEUs) ; na'piform {forma, shape), 

 turnip- shaped or rooted. 



nap'py, tomentose. 



Nar'ceine [vdpK-n, numbness), an opium 

 alkaloid forming silky, inodorous, 

 bitter crystals. 



Nar'cotine [vapKosriKbs, making numb), 

 also an opium alkaloid, but of very 

 little narcotic power. 



Narcot'ropism {vapKdo), I grow stiff; 

 rpQir^, a tm'ning), movement due to 

 a narcotic cause. 



Narde'tum, an association of Nardus 

 stricta. 



Nar'dine, pertaining to Nard, Nardo- 

 stachys Jatamansi, DC. 



nas'oent {nascor, to be born), in the 

 act of being formed ; <- Tis'sue = 

 Mkristem. 



Nas'tie {va^Ths, pressed close), auto- 

 matic curvature of a dorsiventral 

 organ influenced by continued 

 growth in length (De Vries) ; adj. 

 nas'tio. 



na'tant, na'tans (Lat., twimming), 

 floating under water, that is, wholly 

 immersed. 



na'tive, used by H. C. "Watson for 

 undoubtedly indigenous. 



nat'ural, produced or effected by 

 nature; -' Family, a group of 

 genera formerly styled Ouder, but 

 since 1905 the latter has been re- 

 stricted to a superior group ; '- 

 Graft, when branches are naturally 

 united by "approach"; -^ Or'der, 

 an assemblage of Families, inferior 

 to Class ; '-' Sys'tem, an arrange- 

 ment according to the affinity of the 

 plants, and the sum of their charac- 

 ters, opposed to any artificial system, 

 based on one set of characters; 

 Naturaliza'tion, the act of be- 

 coming naturalized ; naturalized, 

 of foreign origin, but established 



and reproducing itself as tliough a 

 native. 



Nau'cum, pi. Nau'ca (Lat., a trifle), 

 (1) the fleshy part of a drupe (Lind- 

 ley) ; (2) seeds with a very large 

 hilum (J. S. Henslow) ; Nau'ciui, 

 certain cruciferous fruits which have 

 no valves. 



naut'iform {nanticu9, pertaining to 

 ships or sailors ; forma, shape) » 

 navicular (Crozier). 



nau'tiloid (elSos, resemblance), spirally 

 formed, like the shell of a Nautilus 

 (Heinig). 



nave-shaped, . round and depressed, 

 with a small opening, modioliform. 



Navic'ulae, pi. {navicicla, a boat), free 

 frustules of Diatoms like those of 

 the genus Navicxda ; navic'alaef orm 

 {forma, shape) = naviculoid ; na- 

 vio'ular, navicida'ris, boat-shaped, 

 cymbiform; navic'uloid (elSoy, liKe), 

 like the genus Navkula. 



neb'ulose, nebulo'sus (Lat., vaporous), 

 (1) cloudy, misty, applied to such 

 finely divided inflorescences as of 

 Eragrostis ; (2) used by Bischoff" as 

 meaning smoke-coloured ( = /wwg'U5). 



Necessa'ria {neccssarius, unavoidable), 

 Linnaeus's term for a division of his 

 Syngenesia (= Compositae) in which 

 the ray florets are female and the 

 disk florets male. 



Neck, (1) the collar or junction of stem 

 and root; (2) the point where the 

 limb separates from the sheath of 

 certain leaves; (3) the contracted 

 part of the corolla or calyx tube ; 

 (4) the elongated portion of the 

 embryo sac or arch egonium; (5) the 

 prolongation of the apex of the peri- 

 thecium in Pyrenomycetes ; <-' Cells 

 in the archegonium of Bryophytes, 

 the drawn-out portion, as distinct 

 from the venter. 



necklace-shaped, moniliform. 



Nec'rides, pi. {veKphs, dead ; li^os, 

 resemblance), certain cells in Cyano- 

 phyceae which become gelatinous 

 and disappear (Brand); neoroco- 

 leopteroph'ilous {vtKphs, dead; -+- 

 Ooleopteron ; 4)i\lo, I love), when 

 fertilized by carrion beetles; 



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