Degeneration 
Deposits 
Degenera’tion (degenero, to become 
unlike the race), an alteration for 
the worse, or less highly developed, 
as when scales appear instead of 
leaves. 
Degrada'tion (degredior, I descend), 
less highly differentiated, simpler 
structures taking the place of more 
elaborate ;—lower in function, re- 
trograde metamorphosis, or a kata- 
bolic change, complex substances 
resolving into simpler ; ~ Product, 
the result of katabolism, as muci- 
lage. 
dehisce’ (dehisco, I yawn), 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; tdwp, 
water), depriving of water as a 
component, as by the use of alcohol, 
or calcic chloride. 
Delimita’tion (Late Lat. delimitare), 
used for ABJUNCTION; cutting off 
by a precise limit. 
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 + (deliquus, 
emarginate (Lindley). 
Del’phine, an alkaloid present 
Delphinium Staphisagria, Linn. 
delta-leaved (dé\ra, the Greek letter 
A), having triangular leaves. 
del'toid, deltoi’des, -deus (elédos, re- 
semblance), shaped like the Greek 
A; an equilateral triangle. 
demersed’, demer’sus (Lat. plunged 
under), under water, especially of 
a part constantly submersed. 
wanting) = 
in 
demis’sus (Lat.), hanging down, 
lowered. 
Dena’riit(Lat.) = ten together 
(Lindley). 
den’driform (é¢vdpov, a tree; forma, 
shape) = DENDROID; dendrit/ic 
73 
-icus, -ical, having a branched ap- 
pearance, as the lirellae of Lichens, 
etc. ; Dendri’tes, cellulose in crys- 
tals; Dendrio-thamno’des, with thal- 
lus branched as a bush, as the Rein- 
deer Lichen, Cladonia rangiferina, 
Hoffm.; den’droid, dendroi’des, den- 
drov’ deus (et60s, resemblance), tree- 
like, in form, or branching ; Den’- 
drolite (\idos, stone), a fossil tree ; 
Dendrol’ogist (Adyos, discourse), one 
skilled in the knowledge of trees ; 
Dendrol’ogy, the study of trees. 
deni (Lat.), by tens, ten together. 
den’igrate, denigra’tus (Lat.), black- 
ened. 
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’to = CRENATO- 
DENTATUS ; ~ lacinia’tus, with 
toothings irregularly extended into 
long point ;~serra'tus, the tooth- 
ings tapered and pointed forward ; 
Dent’icle, 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 (e¢idos, form), 
tooth-shaped. 
denu date, denuda’tus (Lat.), stripped, 
made bare, or naked. 
deoperc’ulate, deopercula'tus (de, oper- 
culum, a lid); (1) when the oper- 
culum 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, re- 
duced in function. 
dep’lanate, deplana’tus (Lat.), flat- 
tened or expanded. 
depend’, dependent, depen’dens (Lat.) 
hanging down. 
Deposits (depositus, laid aside), 
secondary growths on the cell- 
