Halmatogenesis, spelled /hælmətoʊdʒɛnəsɪs/, is a scientific term used to describe the process of producing embryonic tissues from mature cells in a plant. The word is composed of the Greek roots "hálma" meaning shoot or branch and "genesis" meaning creation. The combination of the "h" and "a" sounds in the first syllable is represented by the dipthong /æ/, while the stress falls on the second syllable. The "-to-" sound in the middle of the word is represented by the spelling "to", and the word ends with the suffix "-sis" indicating a state or process.
Saltatory variation, a sudden change of type from one generation to the other.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.