Chemotype - effect of chemical variaity of plants or microorganisms species. Some chemical substances in live plant of one taxonomy type may have various concentration. It is effect of genetic differency, if it is a little notedly in phenotype and yet not come into account in common classification. There are also known as chemovar. Divisions Green algae land plants (embryophytes) non-vascular embryophytes Hepatophyta - liverworts Anthocerophyta - hornworts Bryophyta - mosses vascular plants (tracheophytes) seedless vascular plants Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongue ferns seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering... A microorganism or microbe is an organism that is so small that it is microscopic (invisible to the naked eye). ... Taxonomy (from Greek ταξινομία (taxinomia) from the words taxis = order and nomos = law) may refer to either the classification of things, or the principles underlying the classification. ... The phenotype of an individual organism is either its total physical appearance and constitution, or a specific manifestation of a trait, such as size or eye color, that varies between individuals. ...

The good example of the plants with many chemotypes is Thymus vulgaris. There are some species with different essential oils (main constituents may be thymol, carvacrol, linalool, geraniol, thujanol-4 or terpineol) but very similar in external appearance. So it marked as Thymus vulgaris ct. thymol (common name red tyme), or Thymus vulgaris ct. geraniol (common name sweet thyme) etc. An essential oil, is a concentrated, hydrophobic liquid containing volatile aromatic compounds extracted from plants. ...