Diplophass 



disciferous 



I apjicar), Vuillemin's term for 

 the di})loid generation ; Dip'lo- 

 phyll {(pvWou, a leaf), a leaf having 

 jialisade tissue on Lotli surfaces 

 ^Clements) ; diplosporan'giate, an 

 error for ambispoiiangiate ; Dip'- 

 lospore ( + Si'OKe), Dangeard's term 

 fur Tei.eutosi'OJie; diploste'monous 

 {aTr^/biwv, a stamen), with stamens 

 in two whorls, those of the outer 

 whorl alternating with the petals, 

 the inner wliorl alternating with 

 the last ; Diploste'mony, stamens as 

 just described ; diplos'tic, Van 

 "Tieghem's term for rootlets when 

 the mother-root has only two xylem 

 bundles ; Diploteg'ia, -gis, -gium 

 {r4yos, a covering), a capsule or 

 otlier dry fiuit, invested with an 

 adnate calyx ; an inferior capsule ; 

 dip'lotene [raiyia, a ribbon), the 

 synajjfic stage of the nuchnis in 

 which the thread is double ; diplos'- 

 tichous {arixos, a row), in two series 

 or rows ; diploxyl'ic {ivXov, wod), 

 (1) used of vascidai- bundles in which 

 the centrifugal part of the wood is 

 secondary ; (2) liaving two or niore 

 vascular bundles in tlie leaf, e. g. 

 Pinuslo7ig/fo/i(', lioxl). ; diplox'yloidj 

 resembling the genus Jyiploxhlon 

 (Williamson) : diplox'ylous = i>ir- 



LOXYLIC. 



Dip'terid (Diptera = Hies), or Fly 

 Klowers, chidiy visited by dipterous 

 Hies, as Rata, and P't-inassuf. 



Dip'tero-cecid'ia (Sis, two ; impov, a 

 wing ; K7]Kis, a gall), galls j)roduced 

 by dipterous Hies ; dip'terous, -?r.s', 

 two-winged, having two wing-like 

 piocesses ; dipyre'nus (ttuptjj/, fruit- 

 stone), containing two stones. 



Direct'-Metamorph'osis, the same as 

 Pium:]ii:ssive MKTAMoitriiosis ; ~ 

 Superposit'ion, the ' situation of 

 accessoiy buds in an axil above the 

 leading Imd or that liist foimed 

 (Crozicr) ; direc'te-veno'sus, a feather- 

 veined leaf, where secondary ribs 

 (})riiiiary veins) j>ass direct from 

 mid ril) to margin, men inekvius ; 

 direct'ingLeu'cite, - TiN(>i,i:iJciTE ; 

 Direc'tion Cells, -~ Corpus'cles, syii- 



11 



onyms of Polar Cells , directive 

 Spheres, = attractive Spheres ; 

 Directivity {diredus, made straight), 

 the controlling ellect of the vital 

 functions (Sir A. H. Church). 



Direm'ption, Dircm'ptio (Lat. , a separa- 

 tion), the occasional separation, or 

 displacement of leaves. 



dirin'ean, diri'nold, resembling the 

 genus JJirina. 



disappearing, branching in extreme. 



disartic'ulate {dis, apart ; articulus, a 

 joint), to separate at a joint, as the 

 leaves in autunrn. 



Disassimila'tiou, the breaking down, 

 the katabclism .of plants. 



Disc, 01- Disk [disc'us, a quoit), (1) 

 develo])ment of the torus within the 

 calyx or within the corolla and 

 stamens ; (2) the central part of a 

 capittrlum in Compositae as opposed 

 to the Kay ; (3) the face of any 

 organ, in contradistinction to the 

 margin ; (4) certain markings in 

 cell walls, jof circular outline ; bor- 

 dered pits ; (5) the valves of diatoms 

 when circular ; (6) the base of a 

 ]>ollinium ; (7) the expanded base 

 of the style in Undielliferae ; (8) in 

 a bulb, the solid base of the stem, 

 around which the scales are arranged ; 

 adhe'sive '■^ , modified tendrils, as in 

 Vitia kcUrophylla, Thunb. , Er cilia, 

 etc. ; carpell'ary -^ , expansion of 

 strobilns of fossil cycads bearing 

 ovules (Wicland) ; stam'infite '^ , the 

 surface bearing the staminate oigans 

 in fossil Cycads (Wieland). 



disc'al, Avord used bv J. Smith to 

 expres:s "on the surface of the frond, 

 superficial " ; Dis'cals, Hessey's 

 l>roj)osed abbreviation of Discillorae, 

 a series of ])olypetalous Phanerogams, 



Discentra'tion (dis, ai>art ; cadruvi, 

 ccntie), used by C. V. Schimper 

 for {a) fasciation of the axis, and 

 [!>) multiple of a leaf-organ (Penzig). 



Dischis'ma [oh, two ; o-xi'^/ia, separa- 

 tion), the fruit of /'/rt/?/.'.-/n//o//, which 

 divides into longitudinal carpels, 

 each of whicli again divides trans- 

 v('rsi'ly. 



dis'cifer (Tjat.), disciferous {fcro, I 



5 



