Hypnocyst (ADDITI 
ONS) Jordanism 
posed of Mosses, especially of 
Hypnum, and its allies, 
Hyp’nocyst (xvoris, a cavity), a 
large transformed resting-cell in 
certain Algae (Chodat); Hyp’no- 
sporange (+ SPORANGE), a pro- 
duct of the modification of the 
root of Botrydium, a sporangium 
which produces zoospores after a 
resting period (Rostafifiski), 
Hyp’oblast = Hyrospiastus ; Hypo- 
g’yny, the condition of possessing 
hypogynous flowers ; Hy’pophyse, 
~ Cell, = Hyporuysis. 
hysterogenet’ic = HYSTEROGENIC. 
Hystrel’la (tcrépy, the matrix), a 
synonym of CARPEL. 
idioandrospor’ous (lé.os, peculiar, + 
ANDROSPORE), when dwarf-males 
of Oedogoniaceae are produced 
from zoospores contained in certain 
cells of neuter individuals (Witt- 
rock) ; Idiot’ery (répas, a monster), 
Gubler’s term for a monstrosity 
which is peculiar to the individual ; 
cf. TAXITERY. 
Immotiflor’ae (immotus, motionless, 
flos, floris, a flower), Delpino’s 
term for wind- fertilized plants 
whose flowers are steadily fixed. 
inhib’ited, used by J. F. Clark for 
spores, not killed, but whose ger- 
mination has been prevented by 
the use of certain solutions. 
inophyl’lous (is, vos, a nerve, 
pidrov, a leaf), with thread-like 
veins in the leaf (Heinig). 
in‘ops (Lat., destitute), poor, de- 
ficient (Heinig). 
Inotag’mata, pl. (+ Tacma), the 
hypothetical contractile elements 
of protoplasm (T. W. Engel- 
mann). 
in’quinant (inguino, I stain), stained 
or staining. 
interspor’al (copa, a spore), in a 
sporangium, situated between the 
spores (Harper) ; interplacen’tal 
(+  PuacentTA), between the 
placentas | applied to vascular 
undles which occur in the capsule ; 
cf. ANTEPLACENTAL ; intertrop’ic 
312 
(+ Troptc), relating to the torrid 
zone; within the tropics. 
intracutic’ular (+ CoticLE), within 
the cuticle; applied to parts or 
organs whose normal position is 
outside ; intrapal’ear (+ Pauza), 
referring to the fertilization of 
cereals which commonly takes 
place within the flower, before the 
exsertion of the anthers ; intra- 
stamin’eal (+ STamEN), within the 
stamens, as the disk of Anacar- 
diaceae. 
Intumes’cence (intumescere, to swell- 
up), any abnormal swelling on the 
exterior of plants. 
Yon (lov, neut. of wy, p. part. of 
elu, I go), a physical term, defined 
by J. F. Clark as the division of a 
molecule; adj. ion’ic; Ioniza’tion, 
the partitioning of a molecule; 
ioni’zed, divided into ions. 
Isola’tion (Fr., isolation, insulation, 
from inswa, an island), the pre- 
vention of intercrossing between a 
separated section of a species or 
kind, and the rest of that species 
or kind (Romanes). 
Isodi’ode (+ Dropz), when all the 
diodes produced are alike (Van 
Tieghem); isolat’eral (/atus, a 
side), employed by Heinricher for 
“central” ; ~ Leaves, those which 
possess palisade tissue on both 
surfaces ; I’somorph (op¢, shape), 
similar in external form, but not 
in essential structure; a minera- 
logical term ; Isomorph’ism, the 
condition described, as exemplified 
by the outward agreement of 
purple Crocus and Colchicum. 
ix’ous (ifds, bird-lime), sticky, 
viscous (Heinig). 
Ja‘culator (Lat., a darter), a hook- 
like process on the placenta of 
certain fruits, which aids in the 
expulsion of the seeds, as in 
Acanthaceae (Boulger). 
Join’ing, used by Babington for the 
point of union of two different 
parts ; a node. 
Jord’anism, an excessive multiplica- 
