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7 Cards in this Set
- Front
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Family. |
Sits between order and genus and consists of one or more genera. Families within an order (for example Polygalaceae and Fabaceae both in Fabales) have more characteristics in common with each other than they do with families in other orders (for example Brassicaceae and Tropaeolaceae both in Brassicales). |
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Genus (plural genera |
Sits between family and species and consists of one or more species. Genera within a family share more characteristics with each other than they do with genera in other families. For example, Lathyrus, Vicia, Acacia and Ulex, (all within Fabaceae). The generic name (the first part of the binomial name) is written in italics, with a capital letter at the start. |
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Species |
Species Sits within a genus. Species within a genus share more characteristics than they do with species in other genera. Individual plants within a species share more characteristics with each other than they do with individual plants in another species. For example, individuals named as Lathyrus odoratus have more in common with each other than they do with individuals named as Lathyrus latifolius. |
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subspecies |
Often used when a species has distinctive geographical 'races' that differ consistently from the typical type |
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varietas or variety (var.) |
For even more finely delimited groups, often without such a strict geographical component |
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forma or form (f.) |
Used when only one or a few minor, but constant, characters separate each subgroup (often only flower colour). Most horticulturists typically have to deal with family, genus, species and one other key taxonomic level - the cultivar. |
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cultivar (cv) |
cultivar (cv) Short for cultivated variety, the cultivar is a group within a species that has some horticultural or agricultural significance. Cultivars are typically the result of human selection and artificial propagation. Many species of horticultural importance have hundreds or even thousands of cultivars. Needless to say, the cultivar is one of the most important taxonomic levels for the horticulturist. Cultivar names are written in Roman (not italic case) within apostrophes and each word in the cultivar name has a capital letter at the start. Cultivar names need not be Latin or Greek words. Lathyrus latifolius ‘Rose Queen’
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