Category: H

  • Homomorphic

    With only one kind of flower in a single species of plant.  

  • Homology

    (In cladistics) similarity owing to a common ancestor. A sequence of amino acids in two or more proteins that are identical to each other. Nucleic-acids homology refers to complementary strands that can hybridize with each other. Similarity due to common origin. Similarity in structure but not necessarily in function; the opposite of analogy.  

  • Homologous

    Similar in origin and structure but not necessarily in function. Corresponding in structure, position, origin, etc., as (a) the feathers of a bird and the scales of a fish, (b) antigen and its specific antibody, (c) allelic chromosomes. Chromosomes or chromosome segments that are identical with respect to their constituent genetic loci and their visible…

  • Homogonous

    With all pistils and stamens of similar length.  

  • Homogeneous

    Uniform, of one kind. Composed of things which are the same, in contrast to “heterogeneous/’which refers to a mixture. For example, in a homogeneous or “single-diagnosis” Diagnosis Related Group (DRG), all the patients have the same diagnosis; on the other hand, a heterogeneous DRG is composed of patients with a variety of diagnoses. Consisting of…

  • Homogamous

    With all flowers of the same kind. When the flowers are all of one kind in the head.  

  • Homoblastic

    (Of orchids) having pseudobulbs of several internodes.  

  • Holophyte

    Holophyte

    A plant producing its own food through photosynthesis, i.e. neither a saprophyte nor a parasite.  

  • Holo-epiphyte

    An obligate epiphyte, completing its life cycle on the host plant.  

  • Homochromous

    (In Compositae/Asteraceae) with ray and disc florets the same colour.