Amphicotyledon 
Amylogenesis 
forth), producing fruit above 
ground, which is subsequently 
buried beneath; ¢f. HYPOCARPO- 
GENOUS ; Amphicotyle’don 
(korv\nddév, a hollow), De Vries’s 
term for cotyledons united so as 
to form a cup. 
amphigae’us, amphige/’an (dudl, 
around, yf, the earth) ; (1) plants 
which are natives of both Old and 
New worlds; (2) used of flowers 
which arise from the rootstock ; 
asin Krascheninikovia, Turcz, ; Am- 
phig’amae (duos, marriage), plants 
whose fructification is unknown, 
possibly of both sexes; amphi- 
gam’eous, amphig’amous, supposed 
to be destitute of sexual organs, or 
where their presence has not yet 
been ascertained ; it has been ap- 
plied to Cryptogams; Amphigast’er, 
proposed alteration of the follow- 
ing; Amphigast’ria (yaornp, belly), 
stipular organs in Hepatica, which 
clasp the stem; amphig’enous 
(yervdw, I bring forth), growing 
all round an object, used of Fungi 
when the hymenium is not re- 
stricted to any particular surface ; 
~ Castra’'tion, the action of Ustilago 
antherarum, DC., when it mingles 
the characters of both sexes by 
developing in each, some of the 
characters of the other; Amphi- 
mix'is (ifs, intercourse), sexual 
reproduction (Weismann) ; Amphi- 
py'renin (zvpiv, stone of fruit), 
the membrane of the pyrenin, the 
body of the nucleus; Amphisarc’a 
(adpt, capxds, flesh), an indehiscent 
multilocular fruit, dry without, 
pulpy within, as a melon ; Amphi- 
sper mium (c7répua, a seed), a fruit 
which is amphisper’mous, when the 
pericarp closely invests the seed and 
assumes its shape ; Amphithe’cium 
(Oxy, @ case), peripheral layer of 
cells surrounding the endothecium 
in the early stage of the develop- 
ment of the moss-capsule ; adj. 
amphithe’cial: amphit’ropal, or 
more correctly amphit/ropous -pus 
(rporéw, I turn), said of the ovule 
12 
when it is curved so that both 
ends are brought near to each other; 
Amphit’rophy, Wiesner’s term for 
growth when greatest in the shoots 
and buds on the sides of the mother 
shoot. 
Am’phora (Lat. a wine-jar) the lower 
part of a pyxis, as in Henbane. 
amplect’ant, amplect’ans, amplecti’vus, 
amplez'ans (Lat.) embracing ; am- 
plex’us, in Vernation, when two 
sides of one leaf overlap the two 
sides of the one above it ; amplex’- 
icaul, amplexicau'lis (caulis, stem), 
stem-clasping, when the_petiole- 
leaf, or stipule, is dilated at the 
base, and embraces the stem. 
am’pliate, amplia‘tus (Lat.) enlarged ; 
ampliatifior’us t (flos, flower), Com- 
posites having the ray-florets 
enlarged, as in the Corn-flower. 
Ampul'la, (Lat. a bottle), the flasks 
found on aquatics such as Utri- 
cularia ; ampulla’ceous, -cews, am- 
pul'liform, ampullifor’mis, swollen 
out in flask-shape, as the corolla 
in some Heaths. 
Amyeg’dala (amygdalum, a kernel), an 
almond; amygd’aliform (forma, 
shape), almond-shaped ; Amyg’da- 
lin, a glucoside found in the fruit 
of many Rosaceae; amyg’daline, 
pertaining to or resembling an 
almond. 
amyla’ceous (duvdov, fine flour+ac- 
eous),starchy; Amylase, an enzyme, 
the same as DrasTasE; amylif‘e- 
rous (¢épw, I bear), starch-bearing ; 
Am’ylin, a product of the action 
of diastase on starch ; Am’ylites, 
skeletons of starch-granules com- 
posed of amylodextrin (Belzung) ; 
Amylobacte’ria (Baxrypiov, a little 
rod), microbes producing butyric 
fermentation, ascribed to the action 
of Bacillus Amylobacter, Van Tiegh. ; 
Amylocel’lulose (+CELLULOSE), a 
supposed constituent of starch- 
granules ; Amylodex’trin (+ Derx- 
TRIN) an intermediate in converting 
starch into dextrin ; cf. ACHROODEX- 
TRIN; Amylogen’esis (yéveois, be- 
ginning), the formation of starch ; 
