Dahline 



deceptive 



Dali'line, a substance resembling starch 

 from the tubers of the genus Dahlia, 

 Dam'mar, a transparent resin from 

 Agathis loranthifolia, Salisb., for- 

 merly named Dammara orienialis, 

 LamD. 

 Damp^ing, a cultivator's term for pre- 

 mature decay in plants, especially 

 young seedlings, attributed to excess 

 of moisture ; Damping off, the col- 

 lapse of seedlings, ascribed to the 

 attacks of the Fungus Botrytis viU- 

 garis, or of Pythium De-Baryanum. 

 Daph'nin, the bitter principle of 



Daphne Mez^reum, Linn. 

 Darwin, ser, Knight-Darwin Law. 

 Darwinian Cnrv'atTire. the bending 

 induced by the irritation of any 

 foreign substance close to the apex 

 of the root, 

 dasyclad'ous, -dits {daffvs, thick ; 

 KkdSos, a branch) = compactus 

 (Russow) ; daayphyrious, -lies 

 {<p{)\\oy, a leaf), (1) thick-leaved ; 

 (2) leaves thickly set ; (3) with woolly 

 leaves 

 date-shaped, resembling a date in, 



form 

 Datis'cin, a substance having the 

 appearance of grape-sugar, first 

 obtained from Datisca cannabina, 

 Linn. ; it has been used as a yellow 

 dye. 

 Datu'rine, an alkaloid of Datura 



Stram'mium, Linn. 

 Dangh'ter-cells, young cells derived 

 from the division of an older one, 

 the mother-cell ; <-- Chro'mosome, a 

 secondary cliromosome, derived from 

 division of the original ; ~ Skein, 

 stages in nuclear division when the 

 chromatin is more or less in a reticu- 

 late condition ; further distinguished 

 by som ' observers into ' ' loose " or 

 '* close " ; '~' Spore, a spore produced 

 immediately from another or upon a 

 promycelium ; «* Star, one of the 

 groups of chromatic filaments at the 

 poles of a dividing nucleus ; the two 

 together with the connecting spindle 

 constitute the "Dyaster" stage. 

 Day-position, the pose assumed by 

 leaves during the day, in contra- 



distinction to that taken for the 

 night. 

 deaf, has been applied to imperfect 

 fruits of Rumex ; --'-seeds, imperfect 

 seeds of grasses (Percival). 

 deal'bate, dealha'tus (Lat. white- 

 washed), whitened ; covered with 

 an opaque wh te powder. 

 Deammonifica'tion {de, from ; ammo- 

 Ilia, an alkali ; facio, I make) ; a 

 reduction of ammonia by the soil 

 bacteria Deammonobacte ria (Lip- 

 man). 

 Deassimila'tion {assimilatio), conver- 

 sion of food into digested products ; 

 the process of plant-katabolisra 

 (Quin). 

 Death- point, the critical point when 

 a spore is rendered permanently 

 incapable of germinating (J. F. 

 Clarke). 

 Deazotoflca'tion (azote ; fado, I 

 make), the reduction of nitrogenous 

 substances by Deazotobacte'ria 

 (Lipman). 

 Decagyn'ia (Seta, ten ; .yw)], woman), 

 a Linnean artificial ordor of plants 

 with ten pistils ; decagyn'ian, 

 decag'ynous, having ten styles or 

 carpels ; decam'erous, decam'erus 

 (fifpos, a share), in tens ; decan'der 

 (Mod. Lat.) = DECANDROUS ; De- 

 can'dria (av^p, avSphs, a man), a 

 Linnean artificial class of plants 

 with ten stamens ; decan'drian, de- 

 can'drons -rics, having ten stamens. 

 decapct^alons, -lu-'* (Sc/co, ten ; triraXov, 

 a flower-leaf), with ten petals ; de- 

 caphyrious {<pvWov, a leaf), with 

 ten leaves or segments ; decari'nus 

 (SppTjK, male), > ecker's term for ten 

 stamens and one pistil ; decasep'- 

 alous, -lus (4-Sepalum), with ten 

 sepals ; decasperm'al {cnr4pixa, a 

 seed), having ten seeds. 

 decemdent'ate {decern, ten ; dens, 

 dentis, a tooth), having ten teeth, 

 as the capsule of CerasHum ; de- 

 cem'fid (Crozier), decem'fldus {fid, 

 the root of ./Wo, I split), ten cleft ; 

 decemlocula'ris {hculus, a compart- 

 ment), with ten cells, as an ovary. 

 decep'tive {deceptus, deceived) Fly- 



lOt 



