Degradation 



denudate 



entiated, simpler structures taking 

 the place of more elaborate ; (2) lower 

 in function, retrograde metamorpho- 

 sis, or a katabolic change, complex 

 substances resolving into simpler ; 

 '- Prod'uct, the result of kato^bolism, 

 as mucilage. 



degressive, tending towards de- 

 generation. 



dehisce' {dehisco, I ya^vn), to open 

 spontaneously when ripe, as seed 

 capsules, etc. ; Dehis'cence, De- 

 hiscent' ia, the mode of opening of a 

 fruit capsule or anther by valves, 

 slits or pores ; dehis'cent, dehis'cens^ 

 dehis'cing, splitting into definite 

 parts. 



Dehydra'tion {de, privative ; i/'Sw/), 

 water), depriving of water as a 

 component, as by the use of alcohol, 

 or calcic chloride. 



delignify'ing {lignum, wood ; facio, I 

 make), applied to an enzyme which 

 breaks down the structure of wood, 

 as in Merulius. 



Deli'la, applied to those colour-forms 

 of Antirrhinum with ivory tube and 

 magenta or crimson lips (De Vries). 



Delimita'tion (Late Lat. deliviitare), 

 used for Akjunction ; cutting ott" 

 by a precise limit ; delimited, 

 circumscribed. 



deliques'cent, -ens (Lat. melting 

 away ), dissolving or melting away, 

 as (1) when the stem loses itself by 

 repeated branching ; or (2) when 

 certain Agarics become fluid at 

 maturity. 



Deliq'uium J (Lat., a defect) = 

 EMAKGINATE (Liudley). 



Del'phine, an alkaloid present in 

 Drlphinium Staphisagria, Linn. 



del'ta-leaved (SeAra, the Greek letter 

 A), having triangular leaves;- 

 del'toid, deltoi'de.f, -deus {eUos, re- 

 semblance), shaped like the Greek 

 A ; an equilateral triangle. 



demat'ioid (e/Sos, resemblance), like 

 the genus Dcmatium, having a felted 

 layer of hyphae bearing perithecia. 



demersed', demer'sus (Lat. plunged 

 under), under water, especially of 

 a part constantly submersed. 



1 



(Lat.), hanging down, 



together 



demises ns 



lowered 



Dena'rii % (Lat.) = ten 

 (Lindley). 



Den'drad (SeVSpoj/, a iree + ad), an 

 orchard plant (Clements) ; den'dri- 

 form {forma, shape) = dendkoid ; 

 dendrit'ic, -icus, -ical, having a 

 branched appearance, as the lirellae 

 of Lichens, etc. ; Dendrio-tham- 

 no'des, with thallus branched as a 

 bush, as the Reindeer Lichen, Cla- 

 donia rangiferina, Hotfm. ; Den- 

 dri'tes, cellulose in crystals ; Ben- 

 dri'um, "an "orchard formation" 

 (Clements) ; dendrophllus {(pi\ea}, 

 I love), " orchard loving " ; Dendro- 

 phy'ta {(pvrhy, a pLmt), "orchard 

 plants " (Clements) ; den'droid, den- 

 droi'des, dendroi'deus (eJSoy, resem- 

 blance), tree-like in form, or 

 branching ; Den'drolite {xlQos, 

 stone), a fossil tree ; Dendroi'ogist 

 {K6'yos, discourse), one skilled in the 

 knowledge of trees ; Dendroi'ogy, 

 the study of trees. 



deni (Lat.), by tens, ten together. 



den'igrate, denigra'tus (Lat.), black- 

 ened. 



Denitrifica'tion (c?'', from, nitron, nitre, 

 facio, I make), the reduction of 

 nitrates by the action of Denitro- 

 bacte'ria (Lipraan). 



Den'izen, H. C. Watson^s term for 

 plants suspected of foreign origin, 

 though maintaining their place, as 

 Viola odorata, Linn. 



Dens (Lat.), a tooth; den'tate, den- 

 ta'tus (Lat.), toothed, especially 

 with salient teeth directed for- 

 ward ; denta'to-crena'tus = chena- 

 TODENTATUs ; ~ -lacinia'tus, with 

 toothings irregularly extended into 

 long point ; — -serra'tus, the tooth- 

 ings tapered and pointing forward ; 

 Denticle, a small tooth (Crozier) ; 

 dentic'ulate, denticula'tus, minutely 

 toothed ; Denticula'tions, small pro- 

 cesses or teeth ; dent'iform ( forma, 

 shape), J. Smith's equivalent for 

 toothed; den'toid (eJ5«s, form), 

 tooth-shaped. 



denu'date, denuda'tus (Lat.), stripped, 



06 



