Cut about halfway to the midvein.

Clinandrium

Cavity between the anther-sacs in orchids.

Cochleate

Like a snail shell.

Coma

Tuft of hairs at the ends of some seeds.

Commissure

The contiguous surfaces of two carpels.

Conduplicate

Folded lengthwise.

Confluent

Blended together.

Connate

Similar organs more or less united.

Connective

The end of the filament, between the anther-sacs.

Connivent

Converging.

Convolute

Rolled around or rolled up longitudinally.

Coralloid

Resembling coral.

Cordate

Heart-shaped.

Coriaceous

Leathery in texture.

Cortn

A swollen fleshy base of a stem.

Corolla

The inner of two series of floral leaves.

Corona; Crown

An appendage of the corolla; a crown-like margin at the top of an organ.

Coroniform

Crown-like.

Corymb

A convex or flat-topped flower-cluster of the racemose type with pedicels or rays arising from different points on the axis.

Corymbose

Borne in corymbs; corymb-like.

Costate

Ribbed.

Cotyledon

A rudimentary leaf of the embryo.

Crenate

Scalloped; with rounded teeth.

Crenulate

Diminutive of crenate.

Crustaceous

Hard and brittle.

Cucullate

Hooded, or resembling a hood.

Culm

The stem of grasses and sedges.

Cuneate

Wedge-shaped.

Cusp

A sharp stiff point.

Cuspidate

Sharp-pointed; ending in a cusp.

Cyme

A convex or flat flower-cluster of the determinate type, the central flowers first unfolding.

Cymose

Arranged in cymes; cyme-like.

Deciduous

Falling away at the close of the growing period.

Decompound

More than once-divided.

Decumbent

Stems or branches in an inclined position, but the end ascending.

Decurrent

Applied to the prolongation of an organ, or part of an organ running along the sides of another.

Deflexed

Turned abruptly downward.

Dehiscence

The opening of an ovary, anther-sac or sporange to emit the contents.

Dehiscent

Opening to emit the contents.

Deltoid

Broadly triangular, like the Greek letter delta, A.

Dentate

Toothed, especially with outwardly proj ecting-teeth.

Denticulate

Diminutive of dentate.

Depauperate

Impoverished, small.

Depressed

Vertically flattened.

Dextrorse

Spirally ascending to the right.

Diadelphous

Stamens united into two sets.

Diandrous

Having two stamens.

Dichotomous

Forking regularly into two nearly equal branches or segments.

Dicotyledonous

With two cotyledons.

Didymous

Twin-like; of two nearly equal segments.

Diffuse

Loosely spreading.

Digitate

Diverging, like the fingers spread.

Dimorphous

Of two forms.

Dioecious

Bearing staminate flowers or an-therids on one plant, and pistillate flowers or archegones on another of the same species.

Discoid

Heads of Compositae composed only of tubular flowers, rayless; like a disk.

Disk

An enlargement or prolongation of the receptacle of a flower around the base of the pistil; the head of tubular flowers in Compositae.

Dissected

Divided into many segments or lobes.

Dissepiment

A partition-wall of an ovary or fruit.

Distichous

Arranged in two rows.

Distinct

Separate from each other; evident.

Divaricate

Diverging at a wide angle.

Divided

Cleft to the base or to the mid-nerve.

Dorsal

On the back, or pertaining to the back.

Drupaceous

Drupe-like.

Drupe

A simple fruit, usually indehiscent with fleshy exocarp and bony endocarp.

Drupelet

Diminutive of drupe.

Echinate

Prickly.

Ellipsoid

A solid body, elliptic in section.

Elliptic

With the outline of an ellipse; oval.

Emarginate

Notched at the apex.

Embryo

A rudimentary plant in the seed.

Embryo-sac

The macrospore of the flowering plants, contained in the ovule.

Endocarp

The inner layer of the pericarp.

Endogenous

Forming new tissue within.

Endosperm

The substance surrounding the embryo of a seed; albumen.

Ensiform

Shaped like a broad sword.

Entire

Without divisions, lobes, or teeth.

Ephemeral

Continuing for only a day or less.

Epigynous

Adnate to or borne on the upper part of the ovary.

Epiphytic

Growing on other plants, but not parasitic.

Equitant

Folded around each other; straddling.

Erose

Irregularly margined, as if gnawed.

Evanescent

Early disappearing.

Evergreen

Bearing green leaves throughout the year.

Excurrent

With a tip projecting beyond the main part of the organ.

Exfoliating

Peeling off in layers.

Exocarp

The outer layer of the pericarp.

Exogenous

Forming new tissue outside the older.

Exserted

Prolonged past surrounding organs.

Exstipulate

Without stipules.

Extrorse

Facing outward.

Falcate

Scythe-shaped.

Farinaceous

Starchy, or containing starch.

Fascicle

A dense cluster.

Fascicled

Borne in dense clusters.

Fastigiate

Stems or branches which are nearly erect and close together.

Fenestrate

With window-like markings.

Fertile

Bearing spores, or bearing seed.

Fertilisation

The mingling of the contents of a male and female cell.