222, 229.

_Brasenia_. See "Water-shield."

Breathing pore, 91, 99, 113, 130, 147, 150, 177.

_Bromeliaceae_, 156.

Bryophyte, 86.

Buck-bean, 218.

Buckeye, 171, 199.

Buckthorn, 199.

Buckwheat, 184.

Budding, 64.

_Bulbochaete_, 28; Fig. 16.

Bulb, 146, 153, 172.

Bulrush, 161; Fig. 87.

Bundle-sheath, 110, 176.

Burning-bush. See "Spindle-tree."

Bur-reed, 159; Fig. 86.

Buttercup, 181, 185; Fig. 99.

Butterfly, 227, 228.

Button-bush, 223.

Buttonwood. See "Sycamore."

_Buxus_, _Buxaceae_. See "Box."

Cabbage, 192.

_Cabombeae_, 190.

Cactus, _Cactaceae_, 203; Fig. 112.

_Caesalpineae_, 210.

Calcium, 2.

Calla, 157, 229.

_Callithamnion_, 50-52; Fig. 29.
general structure, 51.
tetraspores, 51.
procarp, 51.
antheridium, 51.
spores, 52.

_Callitriche_, _-chaceae_. See "Water starwort."

_Calluna_. See "Heath."

_Calopogon_, 166; Fig. 91.

_Calycanthus_, _-aceae_, 187; Fig. 100.

_Calycereae_, 223.

_Calyciflorae_, 200.

Calyx, 174, 182.

Cambium, 137-138, 175.

_Campanula_. See "Bell-flower."

_Campanulaceae_, 220.

_Campanulinae_, 220.

Canada balsam, 230-234.

Canada thistle, 224; Fig. 125.

_Canna_, _-aceae_, 162, 163; Fig. 88.

Caper family, 194.

_Capparis_, _-ideae_. See "Caper."

_Caprifoliaceae_, 223.

_Capsella_. See "Shepherd's-purse."

Caraway, 202.

Carbon, 2, 95.

Carbon-dioxides, 95.

Cardinal-flower. See "Lobelia."

_Carex_, 161; Fig. 87.

Carmine, 25, 233.

Carnation, 185.

Carpel, 148, 154, 175, 179.

Carpophyll. See "Carpel."

Carpospore, 51-53.

Carrot, 202.

_Caryophylleae_. See "Pink."

_Caryophyllus_. See "Clove."

_Castalia_, 189.

Castor-bean, 200.

Catalpa, 218.

Cat-brier, 154.

Catkin, 181.

Catnip, 215.

Cat-tail, 159.

Cedar apple, Cedar rust. See "_Gymnosporangium_."

_Celastraceae_, 199.

_Celastrus_. See "Bitter-sweet."

Celery, 3.

Cell, 6.
apical, 38, 96, 105, 115.
division, 23, 31, 229.
row, 8; Fig. 3.
mass, 8; Fig. 4.
sap, 6, 151.

Cellulose, 3.

Centaury, 219.

_Centrospermae_, 183.

_Cephalanthus_. See "Button-bush."

_Cerastium_. See "Chick-weed."

_Ceratophyllum_. See "Horned pond-weed."

_Cercis_. See "Red-bud."

_Chamaerops_. See "Palmetto."

_Chara_, 38-40; Fig. 23.
general structure, 38.
method of growth, 39.
cortex, 39.
non-sexual reproduction, 39.
ooegonium, 39.
antheridium, 39, 40.
spermatozoids, 40