_Fistular._ Hollow and cylindrical.

_Flaccid._ Without rigidity, lax and weak.

_Fleshy._ Succulent; juicy; of the consistence of flesh.

_Flexuous._ Zigzag; bending alternately in opposite directions.

_Floccose._ Clothed with locks of soft hair or wool.

_Foliaceous._ Leaf-like in texture or appearance.

_foliate._ Having leaves.

_-foliolate._ Having leaflets.

_Follicle._ A fruit consisting of a single carpel, dehiscing by the ventral suture.

_Follicular._ Like a follicle.

_Forked._ Divided into nearly equal branches.

_Fornicate._ Arched over, as the corona of some Borraginaceae, closing the throat.

_Free._ Not adnate to other organs.

_Friable._ Easily crumbled.

_Frond._ The leaf of Ferns and some other Cryptogams; also in some Phaenogams, as in Lemnaceae, where it serves for stem as well as foliage.

_Fruit._ The seed-bearing product of a plant, simple, compound, or aggregated, of whatever form.

_Fugacious._ Falling or fading very early.

_Funicle._ The free stalk of an ovule or seed.

_Fuscous._ Grayish-brown.

_Fusiform._ Spindle-shaped; swollen in the middle and narrowing toward each end.

_Galea._ A hooded or helmet-shaped portion of a perianth, as the upper sepal of Aconitum, and the upper lip of some bil.a.b.i.ate corollas.

_Galeate._ Helmet-shaped; having a galea.

_Gamopetalous._ Having the petals of the corolla more or less united.

_Gamophyllous._ Composed of coalescent leaves, sepals, or petals.

_Gemma._ A bud or body a.n.a.logous to a bud by which a plant propagates itself.

_Gemmiparous._ Producing gemmae.

_Geniculate._ Bent abruptly, like a knee.

_Gibbous._ Protuberant or swollen on one side.

_Glabrate._ Somewhat glabrous, or becoming glabrous.

_Glabrous._ Smooth; not rough, p.u.b.escent, or hairy.

_Gland._ A secreting surface or structure; any protuberance or appendage having the appearance of such an organ.

_Glandular._ Bearing glands or of the nature of a gland.

_Glaucous._ Covered or whitened with a bloom.

_Globose, Globular._ Spherical or nearly so.

_Glochidiate._ Barbed at the tip.

_Glomerate._ Compactly cl.u.s.tered.

_Glumaceous._ Furnished with or resembling glumes.

_Glume._ One of the chaffy bracts of the inflorescence of Gra.s.ses.

_Granular._ Composed of small grains.

_Gregarious._ Growing in groups or cl.u.s.ters.

_Gymnospermous._ Bearing naked seeds, without an ovary.

_Gynandrous._ Having the stamens borne upon the pistil, as in Orchidaceae.

_Gyn.o.base._ An enlargement or prolongation of the receptacle bearing the ovary.

_Habit._ The general appearance of a plant.

_Halberd-shaped._ The same as Hastate.

_Hastate._ Like an arrow-head, but with the basal lobes pointing outward nearly at right angles.

_Head._ A dense cl.u.s.ter of sessile or nearly sessile flowers on a very short axis or receptacle.

_Heart-shaped._ Ovate with a sinus at base.

_Herb._ A plant with no persistent woody stem above ground.