Deztrinase 



dianthic 



Dex'trinase, an enzyme stated to 

 be present in diastase (Wysman); 

 dez'tro-ro'tatory. turning towards 

 the right; dex'trorse, dextror'sns 

 (from versus, turned towards), to- 

 wards the right hand; dextror'sum 

 volu'bilis (Lat.), twining towards 

 the right; Dex'trose, glucose, or 

 fruit sugar, it turns the plane of 

 polarization to the right ; cf. Levu- 

 LOSE ; Dextrosty'ly ( + Style), the 

 style curves to the right in enantio- 

 stylous flowers. 



di-, die-, in Greek compounds = two, 

 or double. 



dia-, Greek, for through. 



Liablaste'sis ( + Blastesis), special 

 growth from the hyphal layer of a 

 Lichen (Minks). 



Diache'nium (5t, two, + Achenifm), 

 or Diake'nium = Ckemocarp. 



Diach'yma (5ta, through : x^l^^^y a liba- 

 tion), Link's term for Mesophyll. 



diac'mic (5<, two ; ok/u)?, a point), 

 employed to denote plankton having 

 two maximum periods ; cf. monac- 



MIC. 



Di'ad, a variation in spelling of Dyad, 

 ivfra. 



DiaderpMa(5t,two; dSeXc^bs, a brother), 

 a Linnean class having the stamens 

 in two bundles or brotherhoods ; 

 diadelpVian, diadelph'ous, -us, -icus, 

 with two groups of stamens. 



diad'romons {^id, through ; 5p6fj.os, 

 course), applied to a fan-shaped 

 venation, as in Gingko biloba, Linn. 



diae'cious = dioecious. 



diage'ic {yh, earth), plants producing 

 stolons which are below ground ; 

 diageotrop'ic {rpSiros, a turn), a 

 modified form of geotropism, the 

 organs placing themselves in a hori- 

 zontal position, as though opposing 

 forces were neutralised ; Diageo- 

 t'ropism, the state just described; 

 Diagno'sis {yvwais, wisdom), a brief 

 distinguishing character. 



diag'onal (Sm, across ; ywvla, angle), a 

 mean between two forces, a com- 

 promise of position ; -^ Plane, in a 

 Bower, any vertical plane which is 

 not antero -posterior (front to back) 



or lateral (side to side); --' Posit'ion, 

 one intermediate between median 

 and lateral; ~ Sym'metry, applied 

 to the valves of Diatoms when 

 their torsion amounts to 180° ; 

 Di'agram {ypa/xfi^, an outline), see 

 Floral Diagram; Diaheliot'ropism 

 {ifiXtos, the sun; rpSiros, a turn), 

 growth more or less horizontal, 

 under the influence of light, as when 

 leaves place themselves at right 

 angles to incident light; adj. dia- 

 heliotrop'ic ; Diakine'sis {Kivnais, 

 energy), the last stage in the hetero- 

 type prophase in which the definitive 

 chromosomes have been formed and 

 the nuclear membrane is still intact; 

 adj. diakinet'ic. 



dialycarp'ic (5toAua», I disbaiid ; Kapirhs, 

 fruit), having a fruit composed of 

 distinct carpels; Dialydes'my (Se<r/iJ>s, 

 a band), the breaking up of a stele, 

 into separate bundles, each with 

 its own endodermis ; Dialypet'alae 

 {iTfraXov, a flower-leaf), Endlicher's 

 equivalent for the Polypetalae of 

 Jussieu ; dialypet'alous, poly- 

 petal ous ; dialyphyll'ous [cpvWov, a 

 leaf), bearing separate leaves; dia- 

 lysep'alous ( + Sepalum), bearing 

 separate sepals; Diarysis, the 

 separation of parts normally in 

 one, especially parts of the same 

 whorl ; dialyste'lic ( + Stele), 

 having distinct steles ; Dialyste'ly, 

 a variation of Polystely, in which 

 the separate steles remain for the 

 most part separate during their 

 longitudinal course. 



diamesog'amous (Sta, through ; fxeaos, 

 middle ; yd/xos, marriage), fertiliza- 

 tion by the means of some external 

 agent, as wind or insects ; Dia- 

 mesog'amy, the condition just 

 defined. 



dian'dreous (Si-, two ; aur]p, avdphs, 

 man ; + eous), the condition of 

 Orchids having two perfect stamens 

 (S. Moore) ; Dian'dria, a Linnean 

 class with plants of two stamens ; 

 dian'drian, dian'drous {diander), 

 possessing two stamens ; dianth'ic 

 \6.v6os, a flower), pollination by 



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