Gentianella

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Gentianella
Gentianella aspera Hochanger 20210821.jpg
Gentianella aspera
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Gentianaceae
Tribe: Gentianeae
Subtribe: Swertiinae
Genus: Gentianella
Moench
Species

See text

Gentianella is a plant genus in the gentian family (Gentianaceae). Plants of this genus are known commonly as dwarf gentians. [1]

Contents

As of 2000 there were about 256 species in this genus. They are herbs that occur in alpine and arctic habitat types. They are distributed in the Americas, Eurasia, northern Africa, Australia, and New Zealand. [2]

Selected species

Description

Vegetative characteristics

Gentianella-species grow as one- to two-year-old or more rarely perennial herbaceous plants. The stem leaves are arranged cross-wise or more rarely whorled in ground leaf rosettes or distributed on the stem. The leaf blades are simple. Plants range from 3–100 cm in height.

Generative characteristics

Flowers end up individually or in a cymose inflorescence with double flower envelope. The hermaphrodite flowers are 0.5–5 cm long, have four or five petals with entire petal margins, displaying radial symmetry. They have one or two naked nectaries per petal lobe on the upper petal surface. [3]

The four or five sepals have grown together. There is no connective skin in the calyx (unlike many in the Gentian family). The four or five sepals are fused in a tubular or funnel shape, but unlike with many Gentiana-types, no fold-flaps (plicae) are present between the corolla-tips. Appendages may be absent or present as fringed scales at the corolla-leaf-base. There are nectaries at the base of the corolla tube, the length of which varies considerably, and which is variously colored. Some have a ring of vascularized or non-vascularized fimbriae in the corolla throat. There is only one circle with four or five stamens, which are inserted at the corolla tube and do not protrude from it. The stylus is short to absent.

The two-lobed capsule (fruit) contains many seeds with a smooth to warty surface.

Distribution

Most Gentianella'-species are native to South America. In addition, species occur in the Temperate Zones of New Zealand, Australia, Asia, Europe, North America and northwestern Africa.

Taxonomy

The genus Gentianella was introduced in 1794 by Conrad Moench in Methodus Plantas Horti Botanici et Agri Marburgensis : a staminum situ describendi. The genus name Gentianella is a diminutive and means directly translated "Little Gentian". synonym for Gentianella (Moench) are: Aliopsis (Omer & Qaiser), Aloitis (Raf.), Arctogentia (Á. Löve), Chionogentias (L.G.Adams), Parajaeschkea (Burkill), Pitygentias (Gilg), Selatium (G. Don).

The genus Gentianella belongs to the subtribe Swertiinae from the tribe Gentianeae within the family of Gentians (Gentianaceae).

In the past, Gentianella were added to the genus gentians (Gentiana), but these two genera belong to different subtribe today. The clearest distinguishing feature is that in all Gentianella species native to Central Europe, a fringed scale supplied with guide bundles per each petal tip is present in the throat of the corolla. This resembles a wreath (which is why it is called "wreath gentian" in German).

Also, Gentianopsis with their fringed corolla-ends and hair-ends ('Comastoma') which are likewise fringed, but have anatomically differently constructed pharyngeal scales, were later separated of the Gentinellas.

Related Research Articles

<i>Gentiana</i> Genus of flowering plants in the family Gentianaceae

Gentiana is a genus of flowering plants belonging to the gentian family (Gentianaceae), the tribe Gentianeae, and the monophyletic subtribe Gentianinae. With about 400 species, it is considered a large genus. Gentians are notable for their mostly large trumpet-shaped flowers, which are often of an intense blue hue.

<i>Gentiana acaulis</i> Species of plant

Gentiana acaulis, the stemless gentian, or trumpet gentian, is a species of flowering plant in the family Gentianaceae, native to central and southern Europe, from Spain east to the Balkans, growing especially in mountainous regions, such as the Alps and Pyrenees, at heights of 800–3,000 m (2,625–9,843 ft).

<span class="mw-page-title-main">Gentianaceae</span> Family of flowering plants comprising gentians

Gentianaceae is a family of flowering plants of 103 genera and about 1600 species.

<i>Macrocarpaea</i> Genus of flowering plants

The genus Macrocarpaea, with 105 species and two hybrids of 0.5 m herbs, shrubs, epiphytes and small trees to 10 m tall, is the largest genus of the tribe Helieae of the gentian family (Gentianaceae). Species of Macrocarpaea have diurnal and nocturnal pollinators, visited during the day by hummingbirds, insects and butterflies, and at night by bats, moths and many different kinds of insects. The common name for the genus is 'Moon-gentian'. No species are known in cultivation.

<i>Gentiana lutea</i> Species of plant

Gentiana lutea, the great yellow gentian, is a species of gentian native to the mountains of central and southern Europe.

<i>Gentiana verna</i> Species of flowering plant in the gentian family Gentianaceae

Gentiana verna, the spring gentian, is a species of flowering plant in the family Gentianaceae, and one of its smallest members, normally only growing to a height of a few centimetres.

<span class="mw-page-title-main">Calyceraceae</span> Family of flowering plants

Calyceraceae is a plant family in the order Asterales. The natural distribution of the about sixty species belonging to this family is restricted to the southern half of South America. The species of the family resemble both the family Asteraceae and the Dipsacaceae.

<i>Gentianella amarella</i> Species of plant

Gentianella amarella, the autumn gentian, autumn dwarf gentian, or autumn felwort, is a short biennial plant flowering plant in the gentian family, Gentianaceae. It is found throughout Northern Europe, the western and northern United States, and Canada.

<i>Stenoptilia zophodactylus</i> Species of plume moth

Stenoptilia zophodactylus, also known as the dowdy plume, is a species of moth of the family Pterophoridae found worldwide. It was first described by Philogène Auguste Joseph Duponchel in 1840.

<i>Swertia perennis</i> Species of flowering plant

Swertia perennis is a species of flowering plant in the gentian family known by the common names felwort and star swertia. It is native to several regions of the northern hemisphere, including much of Eurasia and western North America. It is a plant of wetlands, particularly calcareous fens. It is common to abundant in many areas, but it is known to be negatively impacted by habitat fragmentation and other habitat destruction, and human activity has led to its extirpation from some areas where it was once common. It is a perennial herb producing usually one erect stem growing 10 to 50 centimeters tall. The basal leaves are spoon-shaped with rounded tips, and leaves higher on the plant are widely lance-shaped or somewhat oval, with pointed tips. The inflorescence is an open panicle of flowers atop the stem. Each flower has a calyx of four or five pointed sepals and a corolla of four or five pointed lobes each up to 1.3 centimeters long. The corolla is dull blue to violet in color with darker purplish veining or stippling. There are two rounded nectary pits at the base of each lobe of the corolla. Stamens tipped with large anthers surround a central ovary.

<i>Frasera speciosa</i> Species of plant

Frasera speciosa is a species of flowering plant in the gentian family (Gentianaceae) known by the common names elkweed, deer's ears, and monument plant.

<i>Gentianella campestris</i> Species of plant

Gentianella campestris, common name field gentian, is a small herbaceous biennial flowering plant in the Gentianaceae native to Europe. Its bluish-purple flowers contain four petals.

<i>Gentianella concinna</i> Species of flowering plant

Gentianella concinna is a flowering plant species, endemic to the Auckland Islands of New Zealand.

<i>Gentiana pannonica</i> Species of plant

Gentiana pannonica, the Hungarian gentian or brown gentian, is a species of flowering plant of the genus Gentiana in the family of Gentianaceae.

<i>Gentianella cerina</i> Species of flowering plant

Gentianella cerina is a plant species in the Gentianaceae family, endemic to the Auckland Islands of New Zealand.

<i>Chionogentias diemensis</i> Species of flowering plant

Chionogentias diemensis is a flowering herbaceous alpine plant in the family Gentianaceae, endemic to the island of Tasmania in Australia. It is commonly known as the Tasmanian mountain gentianChionogentias diemensis has been classified into two sub-species: the Tasmanian snow-gentian and the Ben Lomond snow-gentian.

<i>Gentiana froelichii</i> Species of plant

Gentiana froelichii, commonly known as the Karawanken gentian, is an endemic hemicryptophyte and perennial plant species in the family Gentianaceae, which occurs in southeastern Alps. It can be found in Austria and Slovenia, with a few reported occurrences happening in Italy.

<i>Gentianella praecox</i> Species of plant

Gentianella praecox, the Bohemian gentian, is a flowering plant species belonging to the genus Gentianella in the family Gentianaceae. Its distribution is limited to the territory of the Bohemian Massif.

<i>Gentiana alpina</i>

Gentiana alpina is a plant species from the Gentiana genus in the family Gentianaceae.

References

  1. Gentianella. Integrated Taxonomic Information System (ITIS).
  2. von Hagen, K. B., & Kadereit, J. W. (2001). The phylogeny of Gentianella (Gentianaceae) and its colonization of the southern hemisphere as revealed by nuclear and chloroplast DNA sequence variation. Organisms Diversity & Evolution, 1(1), 61-79.
  3. Flora of China @ efloras.org (n.d.). "Gentianella in". www.efloras.org. Retrieved 2021-11-03.