denudate 



descending 



made bare, or naked; Denuda'tion, 

 the act of stripping bare ; denu'ded 

 Quad'rat, a permanent quadrat, or 

 metre-square of land, from which all 

 the original vegetation has been re- 

 moved, for the study of invasion 

 (Clements). 



deoperc'ulate, deopercula'tiis {de = 

 from, operculum, a lid); (1) when 

 the operculum of a Moss does not 

 separate spontaneously from the 

 sporophore ; (2) having lost the 

 operculum. 



deor'sum (Lat. from de, down, versus 

 turned towards), downward. 



depaup'erate, depaupera' tus (Lat.), 

 impoverished as if starved, reduced 

 in function. 



depend', depen'dent, depen'deiis (Lat.), 

 hanging down. 



Deperula'tion {de, prefix of separation, 

 + Ferula), the act of throwing off 

 the bud-scales in leafing ; calyp'tral 

 '~ , thrown off as a cap ; tu'bular 

 -', when remaining as a collar at 

 the base of the shoot (Kirchner). 



Depigmenta'tion [pigmentum, colour- 

 ing matter), latency of colour in 

 flowers, etc. (De Vries). 



depla'nate, deplana' tus (Lat.), flat- 

 tened or expanded. 



Deple'tion {drpletxLs, emptied out), 

 enzyme digestion of reserve material 

 in the endosperm (Pond). 



Depos'its {depositus, laid aside), 

 secondary growths on the cell- 

 wall, more or less covering it, in 

 various forms. 



depres'sed, deprcs'sns (Lat.), sunk 

 down, as if flattened from above ; 

 Depres'sio (Lat.), a pressing or sink- 

 ing down, a little hollow; r^ dor- 

 sa'lis, a depression in the spores of 

 some Agarics extending along the 

 back of the spore; ~ hila'ris, a 

 similar depression, but of less ex- 

 tent, above the hilum (Fayod) ; 

 depress'o-trunca'tus = retuse. 



Deproteofica'tion('^«, from, -f Proteid, 

 facio, I make), decay and putre- 

 faction due to the action of Deproteo- 

 bacte'ria (Lipman). 



deregula'ris J {de, opposed ; regularis 



in order), between regular and irre- 

 gular (Lindley). 



Deriv'ative Hy'brids, those sprung 

 from a union of a hybrid, and one 

 of its parent forms or another 

 hybrid. 



deri'vod {derivo, I turn aside) (disyll.), 

 used by Clements to denote not 

 native. 



Der'ma {d-epfxa, Sepfj-aros, skin), surface 

 of an organ, bark, or rind; Denna- 

 calypt'rogen {KaXv-nrpa, a veil ; 

 yhvaca, I bring forth), Schwendener's 

 term for a common histogen which 

 produces root-cap and root-epider- 

 mis in Phanerogams ; derm'al, relat- 

 ing to the outer covering ; ~ Tis'sue, 

 the substance of the epidermis and 

 periderm ; dermati'nua, applied to 

 those plants such as Lichens, which 

 live on bark or epidermis; der- 

 mat'ioid {fihos, form), skin-like in 

 function or appearance; Dermato- 

 calyp'trogen=DEKMACALYPTROGEN; 

 Derm'atocyst, iJeinnafocys'tis {kv(ttis, 

 a bag or pouch), inflated hairs on 

 the surface of the sporophore of 

 young Agarics; Dermat'ogen(7eVj'a&;, 

 I bring forth), the m.eristem form- 

 ing the layer of nascent epidermis; 

 primordial epidermis ; Dermat'- 

 ophyte ( (pvThv, a plant), any Fungus 

 parasitic on the skin of man or 

 other animals (Crozier) ; Dermat'- 

 osomes (o-oi^m, a body), Wiesner's 

 term for granular bodies in rows, 

 united and surrounded by i)roto- 

 plasm, which form the cell-wall; 

 Dermoblas'tus {dXaarhs, a shoot), 

 "the cotyledon formed by a mem- 

 brane that bursts irregu'arly" 

 (S. F. Gray) ; Demiocalypt''rogen 

 = DERMACALYPTftoGEM ; Derm'o- 

 plast {irXaarrhs, moulded), Pirotta's 

 term for a Moxoplast, invested 

 with a membrane ; Dermosym'plast, 

 the same writer's word for a Sym- 

 PLA.^iT as a latex-vessel. 



descending, drsceji' dens (Lai.), tending 

 gradually downwards; (1) as the 

 branches of some trees ; (2) as the 

 roots; '-' Ax'is, the root system; 

 ~ Metamorph'osis, substitution of 



107 



