Verticordia sect. Tropica
Encyclopedia
Verticordia sect. Tropica is a section
Section (botany)
In botany, a section is a taxonomic rank below the genus, but above the species. The subgenus, if present, is higher than the section, and the rank of series, if present, is below the section. Sections are typically used to help organise very large genera, which may have hundreds of species...

 of Verticordia
Verticordia
Verticordia, a genus of the Myrtaceae family, are woody shrubs with small and exquisite flowers. They are mostly found in Southwest Australia, with several outlier species in northern regions. A revision of the genus in 1991 produced a classification within Verticordia of 3 subgenera, 24 sections,...

that describes three species; outliers in the distribution range of the genus. This range includes occurrences in the Kimberley and Kakadu National Park
Kakadu National Park
Kakadu National Park is in the Northern Territory of Australia, 171 km southeast of Darwin.Kakadu National Park is located within the Alligator Rivers Region of the Northern Territory of Australia. It covers an area of , extending nearly 200 kilometres from north to south and over 100 kilometres...

.

Most species of the genus occur in Southwest Australia
Southwest Australia
Southwest Australia is a biodiversity hotspot that includes the Mediterranean forests, woodlands, and scrub ecoregions of Western Australia. The region has a wet-winter, dry-summer Mediterranean climate, one of five such regions in the world...

, these are found in the north and northwest of the country.
One species, Verticordia decussata
Verticordia decussata
Verticordia decussata is a shrub that is endemic to the Northern Territory.The description of the species was first published in Austrobaileya in 1977.The shrub is able to regrow after bushfire....

, is endemic to the Northern Territory
Northern Territory
The Northern Territory is a federal territory of Australia, occupying much of the centre of the mainland continent, as well as the central northern regions...

. The description for this section was included in Alex George
Alex George
Alexander Segger George is a Western Australian botanist. He is the authority on the plant genera Banksia and Dryandra...

's 1991 arrangement of the genus.

The type species
Type species
In biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...

 for this section is Verticordia cunninghamii
Verticordia cunninghamii
Verticordia cunninghamii is a large shrub or small tree occurring in the north of Western Australia and extending into the Northern Territory. The species is named for Allan Cunningham, who gathered the type collection at Roe River in the Kimberley region on the 14 December 1820...

. The species described as within this section are:
Section Tropica
V. cunninghamii
Verticordia cunninghamii
Verticordia cunninghamii is a large shrub or small tree occurring in the north of Western Australia and extending into the Northern Territory. The species is named for Allan Cunningham, who gathered the type collection at Roe River in the Kimberley region on the 14 December 1820...

 - V. verticillata
Verticordia verticillata
Verticordia verticillata is a shrub or small tree occurring in the north of Western Australia and extending into the Northern Territory. The species is named for verticillatus, the Latin term for whorled, for the leaf arrangement that distinguishes it from its cogenor, Verticordia cunninghamii...

 - V. decussata
Verticordia decussata
Verticordia decussata is a shrub that is endemic to the Northern Territory.The description of the species was first published in Austrobaileya in 1977.The shrub is able to regrow after bushfire....

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