Gesnerioideae

Last updated

Gesnerioideae
Gesneria venticosa.jpg
Gesneria ventricosa
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Clade: Lamiids
Order: Lamiales
Family: Gesneriaceae
Subfamily: Gesnerioideae
Burnett [1] [2]

The Gesnerioideae are a subfamily of plants in the family Gesneriaceae: based on the type genus Gesneria . Although genera typically originate in the New World, some species have become widely distributed as ornamental plants.

Contents

Description

Gesnerioideae is one of two main subfamilies in the Gesneriaceae, the other being Didymocarpoideae. (The third subfamily, Sanangoideae, contains only the genus Sanango .) Gesnerioideae seedlings have normal cotyledons of the same size and shape (isocotylous), whereas the cotyledons of Didymocarpoideae are usually, but not always, eventually different in size and shape (anisocotylous). Gesnerioideae flowers usually have four fertile stamens, rarely two or five. In other respects, Gesnerioideae species are very variable. The ovary may be superior, semi-inferior or inferior, and the fruit takes various forms. [2]

Taxonomy

The original use of the name for the subfamily is attributed to Gilbert Thomas Burnett in 1835. [1] [2] Burnett divided his circumscription of the family Gesneriaceae into "Besleridae" and "Gesneridae". The latter was distinguished by having an inferior or semi-inferior ovary and the calyx adhering to the gynoecium ("germen"). [3] However, Burnett's circumscription of the family and subfamilies was very different to the modern conception. He placed the "Didymocarpidae" (a name which corresponds to the modern Didymocarpoideae), not in Gesneriaceae, but in Acanthaceae. [4] Since about 1997, phylogenetic studies, mostly based on molecular approaches, have resulted in major changes to the traditional taxonomy and classification of the family Gesneriaceae, at every level from genus upwards. [2]

Tribes and genera

A classification published in 2020 divides the subfamily into five tribes. [2]

Distribution

With the exception of the genus Titanotrichum , which is native to eastern Asia, all the species of the subfamily Gesnerioideae are native from Central and South America through the southwest Pacific to Australia. [2]

Related Research Articles

<span class="mw-page-title-main">Gesneriaceae</span> Family of flowering plants including African violets

Gesneriaceae, the gesneriad family, is a family of flowering plants consisting of about 152 genera and ca. 3,540 species in the tropics and subtropics of the Old World and the New World, with a very small number extending to temperate areas. Many species have colorful and showy flowers and are cultivated as ornamental plants.

<i>Gloxinia</i> (genus) Genus of flowering plants

Gloxinia is a genus containing three species of tropical rhizomatous herbs in the flowering plant family Gesneriaceae. The species are primarily found in the Andes of South America, but Gloxinia perennis is also found in Central America and the West Indies, where it has probably escaped from cultivation.

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

Achimenes is a genus of about 25 species of tropical and subtropical rhizomatous perennial herbs in the flowering plant family Gesneriaceae. They have a multitude of common names such as magic flowers, widow's tears, Cupid's bower, or hot water plant.

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

Kohleria is a New World genus of the flowering plant family Gesneriaceae. The plants are generally tropical herbs or subshrubs with velvety stems and foliage and brightly colored flowers with spots or markings in contrasting colors. They are rhizomatous and commonly include a period of dormancy in their growth cycle. The genus was revised in 1992 and was then recognized as having 19 species distributed in Central America and South America. phylogenetic in 2005 indicated that the epiphytic genus Capanea is derived from within Kohleria, and the two species of Capanea were subsequently transferred to Kohleria. The genus Pearcea is closely related.

Hans Joachim Wiehler was a German botanist who specialized in the plant family Gesneriaceae. In 1954 he received a Bachelor of Arts degree from Goshen College in Goshen, Indiana and a Bachelor of Divinity degree from Goshen Biblical Seminary in 1956. He married in 1958 and remained in the United States for the rest of his life. He obtained a master's degree in botany from Cornell University and in 1979 a PhD in Botany from the University of Miami. Wiehler was on the staff of the Marie Selby Botanical Gardens from 1973 until 1982, when he left Selby to found the Gesneriad Research Foundation in Sarasota, Florida.

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

Seemannia is a New World genus in the flowering plant family Gesneriaceae. There are four species in the genus, primarily found in the Andean regions of South America. The name honors the German botanist Berthold Carl Seemann.

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

Gesneria is a genus of approximately 50 species in the flowering plant family Gesneriaceae. Except for two or three odd South American species, all are native to islands of the Caribbean. The genus is classified in the tribe Gesnerieae along with the genera Bellonia, Pheidonocarpa, and Rhytidophyllum. Gesneria species are usually woody shrubs or subshrubs, and are unusual in the family in having alternately arranged leaves. A complete list of the accepted species and their synonyms can be found in the Smithsonian Institution's World Checklist of Gesneriaceae.

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

Sinningia is a genus of flowering plants in the family Gesneriaceae. It is named after Wilhelm Sinning (1792–1874), a gardener of the Botanische Gärten der Friedrich-Wilhelms-Universität Bonn. There are about 65 species of tuberous herbaceous perennials, all occurring in Central and South America, with the greatest concentration of species occurring in southern Brazil.

<i>Nematanthus</i> Genus of epiphytes

Nematanthus is a genus of flowering plants in the family Gesneriaceae. All of its species are endemic to Brazil. Compared to other gesneriads, Nematanthus has leaves that are small, succulent, and hard-surfaced. The plant has a trailing, branching, and spreading habit; it is generally an epiphyte in nature and a hanging-basket plant in cultivation. The flower has fused petals. In some species, the flower has a "pouch" at the bottom. The fancied resemblance of such flowers to a goldfish gives these plants the common name goldfish plant or guppy plant.

<i>Codonanthe</i> Genus of epiphytes grown as houseplants

Codonanthe is a genus of mainly epiphytic plants in the family Gesneriaceae, endemic to the Atlantic Forest of Brazil. The botanical name comes from the Ancient Greek for 'bellflower'. They have white or pale pink flowers and somewhat fleshy leaves. In 2013, the genus was reduced in size when more than half of the species were transferred to Codonanthopsis. They can be grown as houseplants, particularly in hanging baskets. Artificial crosses with Nematanthus hybrids have produced the hybrid genus × Codonatanthus.

Sanango is a genus of flowering plants containing a single species, Sanango racemosum. The genus was originally placed in family Loganiaceae but has since been variously placed in Scrophulariaceae, Gesneriaceae and Buddlejaceae. As of 2016 it is considered to be the sister genus to the family Gesneriaceae as previously defined, and the family was tentatively enlarged to include the genus, pending a revision of the families included in Lamiales. It has been placed as the only genus in the monotypic subfamily Sanangoideae.

Fieldia australiana is a species of flowering plant in the family Gesneriaceae. It is a small tree from eastern Australian rainforests. It has also been placed as the sole species in the monotypic genus Lenbrassia.

<span class="mw-page-title-main">Didymocarpoideae</span> Subfamily of flowering plants

The Didymocarpoideae are a subfamily of plants in the family Gesneriaceae. It was formerly the subfamily Cyrtandroideae. This subfamily consists mostly of tropical and subtropical Old World genera, found in Africa, Asia and the Pacific. One species is native to Central and South America.

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

Rhynchotechum is a genus of plants in the family Gesneriaceae, subfamily Didymocarpoideae. Species distribution records are mostly from India, Sri Lanka, China through to southern Japan, Indo-China and Malesia through to New Guinea.

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

Codonanthopsis is a genus of flowering plants in the family Gesneriaceae. Its native range is from southern Mexico through tropical America to Bolivia and most of Brazil. Codonanthopsis species are generally trailing epiphytes with pale flowers. Most have a mutualistic relationship with tree-living ants: the plants provide the ants with food, including nectar, and give their nests structure and support, while the ants disperse the plants' seeds. The genus was considerably expanded in 2013 when species were transferred from Codonanthe. Some Codonanthopsis species are cultivated as houseplants, when they may be grown in hanging baskets.

Coptocheile is a monotypic genus of flowering plants possibly belonging to the family Gesneriaceae. Its only species is Coptocheile macrorhiza. It is native to Brazil.

Lesia is a genus of flowering plants in the family Gesneriaceae, subfamily Gesnerioideae.

<i>Fieldia</i> (plant) Genus of flowering plants

Fieldia is a genus of flowering plants in the family Gesneriaceae, native to New South Wales, Queensland and Victoria in Australia. It has at times been treated as monotypic, with one species, F. australis. Two are accepted as of April 2021 by sources that include Lenbrassia in Fieldia.

Cobananthus is a genus of flowering plants in the family Gesneriaceae, with a single species Cobananthus calochlamys. It is sometimes included in the genus Alloplectus, but molecular phylogenetic studies suggest that the two genera are not closely related, with Cobananthus more closely related to Alsobia.

<i>Sinningia tubiflora</i> Species of plant

Sinningia tubiflora, the trumpet-flowered sinningia, is a species of flowering plant in the family Gesneriaceae, native to Argentina, Paraguay and Uruguay in South America.

References

  1. 1 2 Reveal, James L. (2011) [onwards], "Gesnerioideae", Indices Nominum Supragenericorum Plantarum Vascularium, Plant Biology section, Cornell University, retrieved 2021-04-14
  2. 1 2 3 4 5 6 Weber, A.; Middleton, D.J.; Clark, J.L. & Möller, M. (2020), "Keys to the infrafamilial taxa and genera of Gesneriaceae", Rheedea, 30 (1): 5–47, doi: 10.22244/rheedea.2020.30.01.02
  3. Burnett, Gilbert T. (1835), Outlines of Botany, vol. II, London: John Churchill, OCLC   1017285083 , retrieved 2021-04-14, pp. 959, 1095, 1108
  4. Burnett (1835), pp. 963–964.