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281:) and in 1991, T.I.Chuang & Heckard reassessed the species and altered the name (in this case, they moved it to another genus and altered the species gender to match). As a general rule, the species article should be categorized by the earliest formal, valid description, so this species is placed in
314:
F.Muell. ex P.Taylor. The "ex" in this author abbreviation indicates that F.Muell. (Ferdinand von
Mueller) did not fully or validly publish the species. In this case, he only suggested a name without a description in 1893. Peter Taylor found the reference and published a description based on
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are often better for tracking name changes back to the earliest formal description. Note that there may have been a change of rank, e.g. what is now accepted as a species may have been first described at an infraspecific rank. If so, the date of that description is used.
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It's not possible to reference, and hence directly justify, the addition of categories to an article. So when a year category is present, it is desirable to explain it, at least briefly, in the
Taxonomy section, with a suitable secondary source. For example,
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in 1768, the specific epithet had to change (as the ICN does not allow the same genus name and specific epithet), so there is no "(L.)" in the authority. Nevertheless, the earliest formal description was by
Linnaeus, so the article is placed in
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Not all plant species articles are categorized by year of description, but nevertheless a cumulative plot may be of interest. The rate of description of plant species that are included here shows no signs of diminishing!
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For reference, the diagram below shows how an article about a plant species fits into the category hierarchy. Parallel hierarchies exist for animal species, fungal species, etc. Start at
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It contains the advice or opinions of one or more
Knowledge (XXG) contributors. This page is not an encyclopedia article, nor is it one of
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after this plant name mean that Asa Gray was the first person to describe this species (in 1857 as
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This ensures that the category "Plants described in 1888" is supported in the text.
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was first named and described in 1888 by Joe Bloggs, and transferred to the genus
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to figure out the proper category. If the name has remained unchanged, the
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Second, "described in year" is meant to indicate that a species was
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232:(ICN) in that year (thus the earliest possible date is 1753). Use
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The categories associated with individual plant species, such as
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Note that the
English Knowledge (XXG) defines centuries as per
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International Code of
Nomenclature for algae, fungi, and plants
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First, note that these categories only apply to articles about
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formally and validly described according to the rules of the
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Overcategorization/Intersection of location and occupation
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Mueller's specimens in 1986, so this article is placed in
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Michx. was described in 1803, so the article is placed in
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was first named and described in 1888 by Joe Bloggs.
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240:is a good source. Other databases, such as the
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396:already existed) by Jane Smith in 1905.
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279:Orthocarpus attenuatus
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