Category: I

  • Internodal

    Between nodes. Two nodes, small masses of normal or abnormal tissue.  

  • Intermediate

    Standing in between two groups and somewhat resembling both. Between two extremes; sequentially, after the beginning and before the end.  

  • Interlocular

    In between the locules of the ovary.  

  • Intergrade

    Specimens that occur on the boundary of one taxon and show characters intermediate with another taxon.  

  • Intergradation

    The process leading to intergrades.  

  • Intergeneric hybrid

    Hybrid between species of two different genera. A hybrid involving species of two or more different genera, whether first generation or any subsequent generations or backcrosses. They are uncommon in the plant world generally, due to the greater genetic distance between genera than between species of the same genus, but are quite numerous among orchid…

  • Interfoliar

    Between two opposite leaves; (In palms) when the inflorescence is borne among the leaves.  

  • Interfertile

    Fertility between species; (Of hybrids) fertility between hybrid and parent or between hybrids.  

  • Intercrossing

    Cross-fertilisation.  

  • Intercostal

    Between the ribs, between the veins of a leaf. Muscle group that contracts and relaxes the rib cage during respiration. Term meaning between the ribs, such as the intercostal muscles that work with the diaphragm to help expand and contract the chest during breathing. The term applied to the nerves, vessels and muscles that lie…