coenopodus 
Colleter 
units (energids) enclosed in a com- 
mon wall, as in Vaucheria ; coeno- 
p’odus, = CoINoPoDUs. 
coerules’cens, coerw'leus, = CABRULES- 
CENS, CAERULEUS. 
coesius = CAESIUS. 
coéta’neous, of the same age, existing 
at the same time; also spelled 
COAETANEOUS. 
Coeto’nium (xoirdy, a bed-chamber), 
the outer glumes of a multifloral 
spikelet in grasses (Trinius), 
coffea’tus (Mod. Lat.), the colour of 
roasted coffee-berries, Coffea ara- 
bica, Linn. 
cohe’rent,cohe’rens, cohe’ring(cohaereo, 
Icleave to) ; (1) the act of Cohe’sion, 
the incorporation of one part with 
another, as the petals to form a 
tubular corolla ; (2) adherent. 
Co’hort, Co’hors (Lat., a band of 
soldiers), a group of orders, forming 
an Alliance. 
coinop’odus + (xowomous, with common 
foot), terminating downwards in a 
cone, as most embryos; Lindley also 
spells it coenop’odus. 
Colch’icine, an alkaloid yielded by 
Colchicum autumnale, Linn. 
Colench’yma = CoLLENCHYMA. 
Col’eogen (xodcds, a sheath ; yervdw, I 
bring forth), a ring-shaped group 
of cells, surrounding the mestome 
of Dicksonia, etc. (Haberlandt) ; 
Coleophyll’um (PvAdov, a leaf), the 
first leaf in germination of mono- 
cotyledons, which sheathes the suc- 
ceeding leaves; Coleop’tilum (77/)ov, 
a feather) = Coleophyllum ; Coleo- 
rhi’za (pifa, a root), the sheath of 
a monocotyledonous embryo, when 
pierced by the true radicle; adj. 
coleorhiza’tus ; Col’esule, Coles’ula ; 
(1) a membranous bag-like organ 
enclosing the sporangium of Hepa- 
ticae, the perichaetial sheath, usu- 
ally termed the Vaginule. 
Collap’sion, Collap'sio (Lat., falling to- 
gether), the act of closing or falling 
together. 
Collar, Coll'um (Lat., neck); (1) the 
“neck” of a plant, the imaginary 
boundary between the above- and 
57 
underground portion of the axis; 
(2) the annulus in Agarics. 
Colla‘re ¢ (Lat., a collar)= LIGULE. 
collat’eral (col-latero, to admit on 
both sides), standing side by side ; 
~ Bun‘dles, those having a single 
strand of bast and wood, side by 
side, and usually in the same 
radius ; BICOLLATERAL BUNDLES are 
a variation on this type, having two 
of one element to one of the other ; 
~ Chor’isis, see CHoRISIS. 
collect/ing (collect’io, a gathering to- 
gether) Cells, are roundish cells, 
destitute of chlorophyll and densely 
filled with protoplasm ; in German 
“‘Sammenzellen”; ~ Hairs, hairs 
on the styles of some Compositae 
serving to collect the pollen on its 
discharge from the anthers ; col- 
lect‘ive Fruits, the aggregation of 
the fruits of several flowers into 
one mass, such as the mulberry ; 
Collect’ors, Collector’es, the hairs of 
certain styles, as in Campanula, 
which collect or brush out the 
pollen from the anthers; Cf. Cot- 
LECTING HaIrRs. 
Collench'yma (kodd\a, glue; éyxvua, 
an infusion); (1) parenchymatous 
cells with cellulose walls usually 
elongated, forming strands of great 
strength under the epidermis, thick- 
ening in angles, etc. ; (2) the cel- 
lular matter in which the pollen is 
formed, usually absorbed, but re- 
maining and assuming a definite 
form in some plants as in Orchids, 
or delicate threads, as in Oenothera 
(Lindley) ; Bast thickening 
chiefly involving the whole wall ; 
Cartilage ~, walls thickened all 
round with sharply differentiated 
inner lamella ; Meta- ~ caused by 
slow death of cell, and metamor- 
hosis of the cell-wall; Plate ~, a 
orm which resembles the true hard 
bast; Rift ~, portion of wall 
bordering on an intercellular space 
alone thickened. 
Coll’et = CoLuar. 
Colle’ter (xoAAnTos, glued), mucila- 
ginous hairs on the buds of 
~; 
