Hunt Institute logo

Flora of North America Glossary

Reset
Basic Search
Displaying 1126-1150 of 2673
Term Synonyms Category Limitation Definition
hip nominative fruit Aggregate and consisting of several to many achenes enveloped by a free, urceolate, more or less fleshy, accessory structure derived from floral tube tissue; esp. in Rosa (Rosaceae).
hippocrepiform = horseshoe-shaped solid shape Relatively slender and strongly compressed, the whole strongly curved over its length in a plane perpendicular to the direction of compression and forming an incomplete circle, the ends somewhat straighter than the rest and parallel or nearly so; like a horseshoe.
hirsute pubescence Bearing coarse, rough, elongate, more or less erect, capillate trichomes. See also hirtellous.
hirtellous pubescence Finely hirsute.
hispid = setose; < bristly pubescence Bearing relatively long and slender, more or less straight, terete, fine-pointed, stiff trichomes. See also hispidulous (setulose, small-bristly).
hispidulous = setulose, small-bristly pubescence Finely hispid (setose).
hoary = canescent pubescence Densely covered with gray, fine, relatively short, capillate trichomes.
hollow = excavate(d) architecture axis Having pith tissue absent or disintegrating prior to axial maturity, resulting in an uninterrupted cavity running the length of the axis. Semantically, this term and its synonym refer to the axis, not to the pith itself, although the latter application has been traditional.
homochlamydeous architecture flower Having a perianth undifferentiated into distinct proximal and distal envelopes (calyx and corolla); composed of tepals, all essentially alike.
homocladic < homomorphic architecture taxon, plant Having stems that do not differ distinctly in size, shape and/or constitution.
homogamous 1 maturation bisexual flower Having the androecium and gynoecium become functionally mature concurrently.
homogamous 2 reproduction plant, inflorescence Having flowers that do not differ in sexual constitution.
homomorphic > homocladic, homophyllous, homostylous architecture Occurring in only one form within the taxon in point.
homophyllous < homomorphic architecture taxon, plant Having leaves that do not differ distinctly in size and/or shape.
homosporous reproduction taxon Producing only one type of spore, each spore giving rise to a gametophyte that bears gametangia of both sexual types.
homostylous < homomorphic architecture taxon, plant, flower Having styles that do not differ distinctly in size and/or shape.
honeycombed = alveolate relief Having generally uniform, regularly and closely disposed, transversely polygonal depressions overall, the pattern resembling the external aspect of a honeycomb.
hood = cucullus STRUCTURE A hood-shaped structure or component, esp. in an inflorescence or flower.
hooded = cucullate architecture Bearing, incorporating, or surmounted by a hood-shaped structure.
hood-shaped = cucullate, cuculliform solid shape Convex or compressed-convex overall with a distal peak or ridge, relatively thin-walled and essentially hollow with the interior open to one side below the distal portion; resembling a hood or cowl. See also helmet-shaped (galeate, galeiform), which overlaps conceptually.
hooked = hamate, uncinate apex Having a recurved terminal portion that resembles a hook.
hook-shaped = unciform solid shape Very slenderly elongate with a more or less straight proximal portion and a recurved terminal portion, the whole resembling a hook.
horizontal orientation Parallel to the horizon, perpendicular to the force of gravity.
horn = corniculum STRUCTURE A straight or curved, slenderly conic or conoidal protrusion or terminal portion that resembles an animal horn.
horned = corniculate apex Bearing one or more horns (cornicula).
Displaying 1126-1150 of 2673