Glossary

Glossary

Glossary

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There are currently 16 names in this directory beginning with the letter I.
Imbricate
Having the edges overlapping in a regular pattern such as the scales on a fish

In situ
Latin for “in its original place or position”. For plants, that would be their original natural habitat where they grow in the wild

Incised
Deeply cut margin

Incision Arrangement
The sinuses of the blade margin can be Palmate where the arrangement is divided so sinuses point to the umbo, or Pinnate where it is divided into lateral segments, sinuses point to the midrib, or Pedate where it is divided palmately, but side lobes gain divided, sinuses not pointing to umbo

Incision Depth
Sinuses cut within the first third of the distance from the perimeter to the umbo is called a Lobed Blade, and where the sinuses cut to the middle third of the distance from the perimeter to the umbo is called Cleft Blade, and when the sinuses cut to the inner third of the distance from the perimeter to the umbo, but not quite to mid-vein or the petiole, this is a Parted Blade

Incision Type
The sinuses or indentations of the margin of a leaf blade that divide it into segments called lobes; Lacerate type is not uniform, size of lobes and depth of sinus irregular, and Incised type is where the sinuses are regular, lobes and sinuses rather uniform

Indehiscent
Of a pod or fruit that does not open at all or not splitting in a regular manner when ripe and ready to release its seeds

Indeterminate Inflorescence
Racemes where the oldest flowers are borne towards the base and new flowers are produced as the shoot grows, with no predetermined growth limit

Indument; indumentum
Any hairy covering

Inferior
As is seen in Begonia flowers, an ovary that is found beneath the point where the sepals, petals, and stamens attach; completely below, beneath, or in the lower part

Inflorescence
A group or cluster of flowers and their branching system, including bracts and bracteoles. View Illustration

Inflorescence dichotomous at base
Cluster of flowers having branching system with divisions in pairs at the base

Inflorescence irregular
Cluster of flowers having branching system with divisions in unequal pairs

Inflorescence lax
Cluster of flowers having branching system that is loosely dichotomous

Internode
The portion or span of a stem that is between two joints or nodes View Illustration

Involucrate
Having one or more whorls of bracts surrounding the base of an inflorescence


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