embryonal 
endarch 
nal, embryona'lis, relating to the 
embryo; ~ Tubes, tubular struc- 
tures which develop in Abietineae, 
forming the suspensor; ~ Ve’sicle, 
the odsphere ; Embryol’ogy (Adéyos, 
discourse), study of the embryo; 
embry’onary Sac = embryo sac; 
em’bryonate, having an embryo 
(Crozier) ; embryon‘ic, rudimentary, 
in an early stage, ~ Branches, in 
Chara, peculiar branches resembling 
an embryo, which become separate 
and grow into new plants; ~ Spheres, 
see under EMBRYOGENIC SPHERES ; 
Em'bryophore (¢opéw, I carry), in 
Equisetum the homologue of the 
suspensor of Phanerogams and 
Selaginella, the lower of the two 
cells first cut off by a septum in 
the odsphere, then again sepa- 
rated, and this time forming 
the lower two of the quad- 
rants, one becoming the ‘‘foot,” 
the other the first root ; Embryo- 
phy’ta (g@urov, a plant), plants pos- 
sessing embryos, divided into ~ 
Siphonogam’ia, having pollen-tubes, 
practically all flowering plants, 
and ~ Zoidiogam’ia, with ciliated 
spermatozoids, practically Crypto- 
gams ; Embryote’ga, - tegum, 
-tegium, -stega (rey, a covering), 
a callosity in the seed coat of some 
seeds near the hilum, and detached 
by the protusion of the radicle on 
germination ; Embryotroph’a (rpogi), 
nourishment) (1) perispermium ; 
(2) amnios (Henslow). 
Emer’gence (emergo, I come forth), 
an outgrowth from the surface, 
differing from hairs in arising from 
more than the superficial cells, and 
from spines, in arising from a few 
layers only; prickles, warts, etc.; 
emer’gent, emerg’ens, used of 
capsules which rise slightly above 
the perichaetium ; emer’sed, em- 
er’sus, raised above and out of the 
water. 
Em’etin, « supposed alkaloid from 
Ipecacuanha and similar emetic 
roots. 
Em’odin, a glucoside obtained from 
86 
buckthorn and a species of rhubarb, 
Rheum Hmodi, Wall. 
empa’led, Grew’s term for hemmed 
in, as the flower by the calyx; 
Empa’‘lement, = CaLyx ; Empa’lers 
= calyx segments. 
empenna’tus { (Mod. Lat.), pinnate. 
emphysemato’sus +t (¢uguvodw, [breathe 
upon), bladdery. 
Emph’ytism (éu¢vs, inhering). W.D. 
Cope’s term for inherited or simple 
type of growth force; Emphyto- 
gen’esis (yéveo.s, beginning), the 
origin of inherited growth force 
(W. D. Cope). 
Empir’ic Di’agram, a scheme showing 
the relative number and position of 
parts of a flower as seen by inspec- 
tion. 
em’pty, void; ~ Glumes, one or more 
glumes subtending a spikelet in 
grasses enclosing one or more 
flowers. 
Emul'sin (emulsus, milked), an enzyme 
acting upon  glucosides, found 
plentifully in almonds. 
enantioblast’ic, -tous (évavra, opposite, 
Pdacrds, a shoot), having the em- 
bryo at the end of the seed dia- 
metrically opposite the hilum. 
Ena'tion (enatus, sprung up), having 
outgrowths from the surface. 
Encarp’‘ium (év, in, xapmds, fruit). 
Trattinick’s term for sporophore. 
Enca’sing, of protoplasm, the forma- 
tion of cellulose-caps by the proto- 
plasm in the cells of certain tri- 
chomes (Haberlandt) ; Germ., Ein- 
kapselung. 
Enchyle’ma (éyxéw, I pour in, Ajun, 
rheum), the more fluid portion of 
the cytoplasm (Hanstein). 
encyst’ed (év, in, xvoris, a bladder), 
enclosed in a bag, or invested with 
a coating when in a non-motile 
state, as some unicellular plants. 
Encyst’ment, the condition of being 
encysted. 
end’arch (évdov, within, épx}, begin- 
ning), applied to a bundle in which 
the primary xylem, in most Phaner- 
ogams is wholly centrifugal, cen- 
troxylic, 
