Nut 



oblong 



scent one-seeded fruit, often 

 vaguely applied to such fruits 

 as those of the Labiatae and 

 Cyperaceae ; spu'rious ~ , a fruit 

 which owes its hardness to some- 

 thing other than the pericarp, as 

 in Mirabilis ; Nux bacca'ta, a nut 

 enclosed in a pulpy covering, as in 

 the Yew. 



nu'tant, nu'tans (Lat. ), nodding. 



Nuta'tion (nutatio, a nodding), the 

 revolution of the growing tips 

 of young organs; revol'ving ~ = 



Cl&CUMNUTATION. 



Nutlet, the diminutive of NUT, cf. 

 NUCULE ; variously applied to any 

 dry independent fruit, as an achene, 

 or part of a schizocarp. 



Nu'tricism (nutricius, that nourishes), 

 a form of symbiosis in which the 

 Fungus becomes the nurse and 

 feeder of the other symbiont, as in 

 Monotropa ; Nutrition, the process 

 of promoting the growth or re- 

 pairing the waste caused by vital 

 phenomena. 



Nux (Lat., nut), see NUT. 



nyctan'thous (>uf, WKT^S, night; 

 avdos, a flower), used of night- 

 flowering plants; Nyctan'thy, the 

 condition of nocturnal flowering ; 

 nyctitroplc (TPOTTTJ, a turning), 

 placing the leaves as during the 

 night ; Nyctit'ropism, assuming 

 the sleep position. 



uymphaeformls (nympha, a pupa, 

 forma, shape) ; Koerber applies 

 this to chrysalis-shaped spores of 

 some Lichens. 



Oan'gium (u6t>, an egg, dyyeiov, a 

 vessel), an apocytial oogonium 

 which forms oospores by free cell- 

 formation, as in Saprolegnieae 

 (Hartog). 



ob, as a prefix, means inversely or 

 oppositely ; as obovate, inversely 

 ovate ; sometimes, but incorrectly, 

 used for sub-. 



obcla'vate (ob, inverse, davatus, club- 

 shaped), attached at the thicker 

 end ; obcoinpres'sed, dbcompres' sus 

 (compres'sus, pressed together), 



flattened the other way, antero- 

 posteriorly instead of laterally ; 

 obconlc, obconlcal, obcon'icus 

 (conus, a cone), conical, but attach- 

 ed at the narrower end ; obcor'- 

 date, obcorda'tus ( + COBDATUS), 

 inversely heart-shaped, the notch 

 being apical ; obcor'diform, obcor- 

 diform'is, are synonyms ; obcrena'- 

 tus (-f- CRENATUS), , denticulate; 

 obcur'rens (currens, running),^ run- 

 ning together and adhering at the 

 point of contact; obdiploste'mo- 

 nous, -us (Snr\6os, double, ffTrjftwv, 

 a thread), where the stamens are 

 double the number of the petals to 

 which the outer series are opposite ; 

 Obdiploste'mony, the condition it- 

 self ; obim'bricate, obimbrica'tus 

 ( + IMBRICATUS), when the imbri- 

 cation is from above, downward ; 

 oblan'ceolate, oblanceola'tus ( + 

 LANCEOLATUS), strictly speaking 

 this cannot occur, but the word is 

 used for tapering towards the base 

 more than towards the apex; oblate 

 (lotus, broad), flattened at the 

 poles, as an orange. 



ob'ligate (obligatus, obliged), neces- 

 sary, essential ; the reverse of FA- 

 CULTATIVE ; "- Gam' etc, a gamete 

 which is incapable of further de- 

 velopment without union with 

 another gamete ; ~ Parasite, an 

 organism in which parasitism is 

 imperative in order to attain com- 

 plete development ; obligatory, 

 ob'ligative, as in OBLIGATE ; ~ 

 Sym'biont, an organism which is 

 dependent upon another for its 

 existence. 



oblig'ulate, oUigulaftua (ob, inverse, 

 + LIGULATE), used of ligulate florets 

 of Compositae extended on the 

 inner side of the capitulum instead 

 of the outside; obliguliflorous (flos, 

 floris, a flower), florets which are 

 obligulate, as in Zoegea. 



oblique', obli'quus (Lat., slanting), 

 (1) slanting ; (2) of unequal sides. 



obliterated (obliteratiis, erased), sup- 

 pressed ; Obliteration, suppression. 



oblong, oblon'gus (Lat., rather long), 



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