Diseae | |
---|---|
Disa cardinalis | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Orchidaceae |
Subfamily: | Orchidoideae |
Tribe: | Diseae Benth. & Hook. (1883) |
Subtribes | |
Diseae is an orchid tribe in the subfamily Orchidoideae. [1] It was recognized in Genera Orchidacearum volume 2, which was published in 2001. It consisted of 12 genera in five subtribes. In molecular phylogenetic studies that were published after 1999, it was shown that Diseae is paraphyletic over the tribe Orchideae. [2] In a classification of orchids that was published in 2015, Diseae was not recognized, but was instead placed in synonymy under Orchideae. [3]
In 2007, a molecular phylogenetic study showed that the large genus Disa (~182 species) is paraphyletic over the small genus Schizodium. [4] [5] Accordingly, in the 2015 classification, the genus Schizodium was sunk into Disa . Also, the subtribe Huttonaeinae was sunk into Disinae, and the subtribe Satyriinae was sunk into Orchidinae. The expanded tribe Orchideae consisted of the subtribes Brownleeinae, Disinae, Coryciinae, and Orchidinae. Disperis was transferred from Coryciinae to Brownleeinae and Pachites was transferred from Satyriinae to Disinae. The placement of Pachites and Huttonaea in Disinae was done with considerable doubt. Four genera were recognized in the subtribe Coryciinae ( Evotella , Ceratandra , Corycium and Pterygodium ), even though it was known that Corycium and Pterygodium are polyphyletic, with all but one species of Corycium composing a clade that is deeply embedded within Pterygodium. [6]
The genera of Diseae have most or all of their species in southern Africa and Madagascar. Diseae accounts for more than half of the orchids of southern Africa and has about 400 species. [6] Disperis has a few species in tropical Africa and Asia, including Malesia. Disa extends to the Arabian Peninsula and the Mascarene islands. Pterygodium has one species in Tanzania. Satyrium is mostly African, but extends through South Asia to China. [7]
In the botanical classification of plants, Aeridinae Pfitzer is a subtribe of the tribe Vandeae whose representatives all have a monopodial growth habit and do not possess pseudobulbs.
The taxonomy of the Orchidaceae (orchid family) has evolved slowly during the last 250 years, starting with Carl Linnaeus who in 1753 recognized eight genera. De Jussieu recognized the Orchidaceae as a separate family in his Genera Plantarum in 1789. Olof Swartz recognized 25 genera in 1800. Louis Claude Richard provided us in 1817 with the descriptive terminology of the orchids. (See External links below). The next step was taken in 1830-1840 by John Lindley, who recognized four subfamilies. He is generally recognized as the father of orchid taxonomy. The next important step was taken by George Bentham with a new classification, recognizing subtribes for the first time. This classification was first presented in a paper that Bentham read to the Royal Society in 1881. Then it was published in 1883 in the final volume of Genera Plantarum. The next great contributors were Pfitzer (1887), Schlechter (1926), Mansfeld (1937), Dressler and Dodson (1960), Garay (1960, 1972), Vermeulen (1966), again Dressler (1981). and Burns-Balogh and Funk (1986). Dressler's 1993 book had considerable influence on later work.
Disa is a genus of flowering plants in the family Orchidaceae. It comprises about 182 species. Most of the species are indigenous to tropical and southern Africa, with a few more in the Arabian Peninsula, Madagascar, and Réunion. Disa bracteata is naturalised in Western Australia, where the local name is "African weed-orchid."
The Orchidoideae, or the orchidoid orchids, are a subfamily of the orchid family (Orchidaceae) that contains around 3630 species. Species typically have a single (monandrous), fertile anther which is erect and basitonic.
Vanilloideae is one of the subfamilies of orchids belonging to the large family Orchidaceae.
Coelia is a genus of orchids. It had previously been tentatively classified as the only genus of the subtribe Coeliinae of the tribe Epidendreae.
Satyrium is a genus of orchid. The Kew plant list for 2010 listed 85 full species as accepted, ignoring synonyms, subspecies and hybrids etc. About ten were still unresolved at the time. Most of the species occur in sub-Saharan Africa and Madagascar. The ranges of four species extend to Asia, mainly in India and Sri Lanka. Hybridization occurs between several species, complicating molecular phylogenetic studies, especially those relying on mitochondrial and chloroplast DNA sequences.
Disperis is a genus of plants in the orchid family, Orchidaceae. It has about 78 species. Most of the species are from tropical and southern Africa, as well as Indian Ocean islands. A few are native to the tropical or the warmer subtropical regions of Asia and Malesia.
Tsaiorchis is a genus of flowering plants in the family Orchidaceae.
Corycium is a genus of terrestrial orchids comprising some 14 species in Eastern and Southern Africa including 10 species native to the fynbos. In South Africa they are called monkshood orchids.
The Vandeae is a large monophyletic tribe within the family of orchids.
The tribe Epidendreae of the Orchidaceae, within the subfamily Epidendroideae. It includes six subtribes, approximately 120 genera, and over 6,000 species. Popular among orchid collectors, it features well-known genera such as Laelia, Cattleya, and Encyclia, as well as smaller species like Dracula, Dryadella, Masdevallia, and Restrepia.
Brownleea is a genus of flowering plants from the family Orchidaceae native to Africa and Madagascar. Eight species are known.
Pachites is a genus of flowering plants in the orchid family, Orchidaceae. It contains two known species, both endemic to South Africa. One of these, Pachites appressus, is very rare.
Galeottiella is a genus of flowering plants from the orchid family, Orchidaceae. Traditionally it had been included in subtribe Spiranthinae, but following molecular phylogenetic and morphological studies it is now placed in a subtribe on its own, Galeottiellinae.
The Eriinae form a subtribe of Podochileae, a tribe of the orchid family (Orchidaceae). The name is derived from the genus Eria.
Orchideae is a tribe of orchids in the subfamily Orchidoideae. Historically, it was divided into 2 subtribes, Orchidinae and Habenariinae. The subtribe Orchidinae alone contains about 1,800 species. However, although some phylogenetic studies have established the monophyly of the subtribes, the generic boundaries are unclear, with many genera as traditionally circumscribed being paraphyletic or even polyphyletic. Species of genera such as Habenaria and Platanthera have been placed into both subtribes. A 2017 molecular phylogenetic study found that both subtribes did form clades, but did not formally recognize Habenariinae, because of missing genera and uncertainty over generic boundaries. The Asian species of Orchideae, in particular, have been subject to repeated changes of generic placement from 2012 onwards.
Coryciinae is a subtribe of orchids that has been differently defined and placed in the two classification systems that are currently in use for orchids. Genera Orchidacearum, which is currently the definitive work on orchid taxonomy, delimits Coryciinae as consisting of five genera: Disperis, Evotella, Ceratandra, Pterygodium, and Corycium, and it places Coryciinae in the mostly African tribe Diseae, along with four other subtribes: Brownleeinae, Huttonaeinae, Disinae, and Satyriinae. The genera of Coryciinae are small to medium in size and the number of species in each genus is as follows: Disperis (78), Pterygodium (19), Corycium (15), Ceratandra (6), and Evotella (1).
Disinae is a subtribe of orchids that has been differently defined and placed in the two classification systems that are currently in use for orchids. Genera Orchidacearum, which is currently the definitive work on orchid taxonomy, delimits Disinae as consisting of two closely related genera, Disa and Schizodium, and it places Disinae in the mostly African tribe Diseae, along with four other subtribes: Brownleeinae, Huttonaeinae, Coryciinae, and Satyriinae. In the classification for orchids that was published by Chase et alii in 2015, Schizodium was placed in synonymy under Disa, while Pachites and Huttonaea were transferred to Disinae. In Genera Orchidacearum, Pachites and Satyrium form the subtribe Satyriinae, and Huttonaea is the sole genus in the subtribe Huttonaeinae. The transfer of Pachites and Huttonaea to Disinae by Chase et alii (2015) was done with considerable doubt, and was based upon uncertainty about the relationships of these two genera. In 2009, a molecular phylogenetic study found only weak statistical support for a sister relationship between Huttonaea and Disa.