oligodynamic 



Onomatologia 



water containing minute traces of 

 copper or brass ; it kills delicate cells 

 of Spirogyra ; oligom'erous (iJ-fpos, 

 a part), parts consisting of few mem- 

 bers ; Oligom'ery, of few parts ; 

 oligonitropli'ilous, used of bacteria 

 which occur in nutritive media 

 wanting in nitrogenous compounds 

 (Beyerinck) ; oligope'lic {v-qXhs, 

 clay), applied to plants which prefer 

 certain rocks which yield a small 

 amount of clayey detritus (Thur- 

 mann) ; Oligophyria {<pv\\op, a 

 leaf), Necker's expression for a 

 bract ; oligophyrious, having few 

 leaves ; oligopsam'mic {xpajx/jiosy 

 sand), for plants affecting certain 

 granite and dolomite formations 

 (Thurmann) ; both of these classes 

 belong to the dysgeogenous series ; 

 Oligosapro'bia {a-aTrphs, pntrid ; fiios, 

 life), organisms which flourish in 

 waters but little contaminated ; 

 Oligosperm'ons, -miis {(nrepfia, a 

 seed), few-seeded ; oligoste'nionous 

 ((TTrjjUWj/, a thread), with few 

 stamens ; Oligotax'y {rd^is, order), 

 the decrease in the number of whorls 

 in a flower ; oligotroph'ic {rpocpi}, 

 food), plants Avhich grow on poor 

 soil and compete for the nutritive 

 salts in it (Warming) ; ~ Peat, moor 

 peat (Weber) ; oligotrop'ic (rpoTr)?, a 

 turning), employed by.Loew for bees 

 which visit a restricted range of 

 plants. 



Olisthi'um, or Olisthi'on {uKicreos, 

 slipperiness), a succession of plants 

 on landslips (Clements). 



oliva'ceous, -ceus {oliva, an olive, -f 

 ACEOUS, (1) olive-coloured ; (2) = 

 oli'veus (Lat.), the colour of a ripe 

 olive; olivas'cens (Lat), turning 

 olive-coloured ; olivaeform'is {forma, 

 shape), shaped like an olive, dru- 

 paceous ; orive-colour, orive-green, 

 yellowish gi-een darkened with black; 

 olivic'olor {color, colour) = oliva- 

 ceous). 



olopetalar'ius {(i\os, whole ; irtTaXov, 

 a flower-leaf), the floral envelopes 

 changed partially or wholly, as 

 stamens or pistils changed into 



petaloid organs ; the correct form 

 would be holopetalar'ius. 



Ombrom'eter {u/j-^pos, a storm of rain; 

 /iifTpov, a measure), Clements's name 

 for a rain-gauge ; Om'brcphile {(piKew, 

 I love), Wiesner's term for a plant 

 which likes rain ; ombroph'ilous, 

 rain-loving ; Ombroph'ily, the 

 condition described ; Om'brophobo 

 {(p6^os, fear), a similar term for a 

 plant disliking rain ; ombroph'obic, 

 hating rain ; Ombroph'oby, dislike 

 or impatience of rain ; Om'brophyte 

 {(pvrhv, a plant), a shade-loving 

 plant (Hansgirg). 



omniv'orous (o??r/iM'07'?f5, all-devouring), 

 applied to parasites which attack 

 many species and are not confined to 

 one host-plant. 



Omoplephy'tum {6fj.oT\€K^is, interlaced; 

 (pvrhv, a plant), applied to a m.ona- 

 delphous flower, the stamens being 

 in one bundle, 



Om'plialode, Omphalo'dhnn {6iJL<pa\hs, 

 navel ; elSos, like), the mark in the 

 hilum through Avhich the vessels 

 pass to the chalaza. 



Omphalo'dium, Kerner's terra for 

 Hilum (1) ; om'phaloid {e'lSos, re- 

 semblance), navel-like, umbilicate 

 (Heinig). 



-on, suffix employed by Clements to 

 denote "Family." 



onagra'ceous, pertaining to Oenothera, 

 a pre-Linnean name of which genus 

 was Onagra, Tourn. 



Onc'ospores, -ae {oyicos, a hook, •{• 

 Spoke), plants having hooked seeds 

 to aid in dispersion (Clements). 



one-ribbed, having one prominent 

 rib, as in the leaves of many 

 grasses ; ^ si'ded, (1) turned to one 

 side ; (2) the parts turned the same 

 way ; (3) unequal sided. 



onisciform'is {onisciis, a wood-louse ; 

 forina, shape), Koerber's word for 

 certain Lichen -spores resembling a 

 wood-louse in shape ; onis'cus 

 (Lat.), used for lead-coloured, from 

 the tint of the same creature. 



Onomatolo'gia {ovofxa, a name ; \6yos, 

 discourse), the rules to be observed 

 in the construction of names. 



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