e "_Rhoeadinae_."

Cucumber, 221.

Cucumber-tree. See "Magnolia."

_Cucurbitaceae_. See "Gourd."

Cup fungi ("_Discomycetes_"), 71.

_Cupuliferae_, 183.

Curl, 66.

Currant, 203.

_Cuscuta_. See "Dodder."

Custard-apple, 186.

_Cyanophyceae_. See "Blue-green slime."

_Cyathus_, 84; Fig. 50.

_Cycad_, _-eae_, 140.

_Cycas revoluta_, 141; Fig. 71.

_Cyclamen_, 212.

_Cynoglossum_. See "Hound's-tongue."

_Cyperaceae_. See "Sedge."

_Cyperus_, 161.

Cypress, 142.

_Cypripedium_. See "Lady's-slipper."

_Cystopus_. See also "White rust."
_bliti_, 57; Fig. 33.
general structure, 57.
structure of filaments, 57.
non-sexual spores (conidia), 57.
germination of conidia, 58.
resting spores, 59.
ooegonium, 59.
antheridium, 59.
_candidus_, 60; Fig. 34.

Daisy, 223.

Dandelion, 66, 223; Fig. 125.

_Darlingtonia_, 195.

_Datura_. See "Stramonium."

Day lily, 155.

Deadly nightshade, 215.

Dead nettle, 215; Fig. 120.

_Delphinium_. See "Larkspur."

Dermatogen, 176.

Desmid, 33, 34; Fig. 20.

Devil's apron. See "_Laminaria_."

_Dianthus_. See "Pink."

_Diatomaceae_, 41, 42; Figs. 24, 25.
structure, 42.
movements, 42.
reproduction, 42.

_Dicentra_, 192; Fig. 103.

Dicotyledon, 145, 170, 181, 225.

_Digitalis_. See "Foxglove."

Dioecious, 88.

_Dionaea_. See "Venus's fly-trap."

_Dioscoreae_. See "Yam."

_Dioscorea villosa_, 154.

_Diospyros_. See "Persimmon."

_Diospyrinae_, 210.

_Dipsacus_, _-aceae_. See "Teasel."

_Dirca_. See "Moosewood."

Ditch-moss, 167; Fig. 91.

Dodder, 214.

_Dodecatheon_. See "Shooting-star."

Dog-bane, 219; Fig. 122.

Dogwood, 202, 229; Fig. 110.

_Draparnaldia_, 26; Fig. 14.

_Drosera_ _-aceae_. See "Sun-dew."

Drupe. See "Stone-fruit."

Duck-weed, 159; Fig. 86.

Dutchman's pipe. See "_Aristolochia_."

Earth star. See "_Geaster_."

_Ebenaceae_ (ebony), 212.

_Echinospermum_. See "Beggar's-ticks."

_Ectocarpus_, 45, 47; Fig. 28.

Eel-grass, 168, 169; Fig. 91.

Egg apparatus, 144.

Egg cell, 27, 36, 39, 45, 90, 106, 133, 144.

Egg-plant, 215.

Eichler, 153.

Elater, 91, 122.

Elder, 224.

_Elaeagnaceae_, 206.

Elm, 183.

_Elodea_. See "Ditch-moss."

Embryo, 90, 97, 107, 133, 149, 180.

Embryology, 3.

Embryo sac, 143, 144, 151.

_Enantioblastae_, 153, 156; Fig. 85.

Endosperm, 133, 146, 152.

Entire leaves, 170.

_Entomophthoreae_, 57.

_Epacrideae_, 210.

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