Leach orchid | |
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Silvery stelis ( Stelis argentata ) | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Orchidaceae |
Subfamily: | Epidendroideae |
Tribe: | Epidendreae |
Subtribe: | Pleurothallidinae |
Genus: | Stelis Sw., 1799 |
Synonyms [1] | |
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Stelis, or leach orchids, is a large genus of orchids, with perhaps 500 species. The generic name Stelis is the Greek word for 'mistletoe', referring to the epiphytic habit of these species. These mainly epiphytic (rarely lithophytic) plants are widely distributed throughout much of South America, Central America, Mexico, the West Indies and Florida. [1] Stelis is abbreviated Ste. in the horticultural trade. [2]
Many of the older species were named by Lindley, Ruiz & Pavon and Reichenbach, while many of the recent species were named by Carlyle A. Luer. An orchid of the genus Stelis was probably the first American orchid ever to be brought to Europe. An herbarium specimen was depicted in 1591 in Tabernaemontanus' herbal book.
A single oblanceolate leaf develops from narrow, leathery outgrowths from a creeping stem. [3]
Most species grow long, dense racemes of small to minute flower in diverse shades of white. Other colors are rare. These flowers are photosensitive, only opening in the sunlight. Some close completely at night.
The three symmetrically rounded sepals generally form a triangle with a small central structure, made up of the column, small petals and small lip, though slight variation to this theme does occur.
This genus is not common in cultivation.
Cladistic research (by A. Pridgeon, R. Solano and M. Chase) has shown that the genus Stelis is monophyletic. But the distinction with several Pleurothallis subgenera is blurred (see Reference).
They are closely related to the massive genus Pleurothallis and Masdevallia . Although vegetatively the species show much variety, the flowers show a basic uniformity and are very similar throughout. Apatostelis Garay , Dialissa Lindl. , Humboldtia Ruiz & Pav. and Steliopsis Brieger are generally included into Stelis.
The genus Stelis was discovered with Charles Plumier, a French priest and botanist who was sent by Louis XIV, King of France, to study the flora of the Antilles in around 1690. He collected numerous species in Dominica (Caribbean island) and other islands, and published his findings in a catalogue called Nova Plantarum Americanarum Genera in 1703. Later on, Nikolaus von Jacquin, a Dutch botanist who collected extensively in the Caribbean, published his findings in two separate works. In 1760, he published the first one called Enumeratio Systematica Plantarum quas in Insulis Caribeis, where he described the same plant as Plumier´s polynomial ( Epidendrum ophioglossoides ). In 1763, he published a more detailed second work called Selectarum Stirpium Americanarum Historia. Here, Jacquin describes a plant of his own herbarium with the same name ( E. ophioglossoides ) [4]
Afterwards, on the “Expedición Botánica Española” (Spanish Botanic Expedition) sent by King Carlos III to study the flora of Peru and Chile, Hipolito Ruiz and Joseph Pavon complete results established 11 small plants of a new genus which they named Humboltia in honor of the renowned German explorer and naturalist Alexander Von Humboldt. In 1799, Olof Swartz, a Swedish botanist, studied the genus proposed by Ruiz and Pavon and found that it had been already used by Vahl to designate a Leguminosae. Because of this, he proposed the name Stelis in replacement of Humboltia. The species Epidendrum ophioglossoides was later moved to the genus Stelis by Swarz, and it is now the type species of the genus. [4]
Select species of Stelis include:
Pleurothallis is a genus of orchids commonly called bonnet orchids. The genus name is derived from the Greek word pleurothallos, meaning "riblike branches". This refers to the rib-like stems of many species. The genus is often abbreviated as "Pths" in horticultural trade.
Restrepia, abbreviated Rstp in horticultural trade, is a small genus of 50 species in the orchid family (Orchidaceae), closely related to Pleurothallis. Named in honor of Don Jose Restrepo, it tends to be more showy than most other Pleurothallids. They are found primarily at higher altitudes in the cool, damp montane forests of the Andes and Venezuela, with some into Central America up to southern Mexico.
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.
Epidendrum, abbreviated Epi in the horticultural trade, is a large neotropical genus of the orchid family. With more than 1,500 species, some authors describe it as a mega-genus. The genus name refers to its epiphytic growth habit.
Charles Plumier was a French botanist after whom the frangipani genus Plumeria is named. Plumier is considered one of the most important of the botanical explorers of his time. He made three botanizing expeditions to the West Indies, which resulted in a massive work Nova Plantarum Americanarum Genera (1703–1704) and was appointed botanist to King Louis XIV of France.
Within the Orchidaceae, Hormidium was originally a subgenus of the genus Epidendrum, but was later raised to a full genus. It is now considered not to be distinct from the genus Prosthechea, of which it is a synonym. Most of the species of Hormidium have been transferred to Prosthechea, although others are now classified in Encyclia, Epidendrum, Homalopetalum, and Lepanthes.
Epidendrum secundum, one of the crucifix orchids, is a poorly understood reed stemmed species, which Dressler (1989) describes as "the Epidendrum secundum complex." According to Dressler, there are dozens of varieties, some of which appear to deserve species rank. Arditti and Ghani note that E. secundum has the distinction of bearing the longest seeds known in the Orchidaceae, 6.0 mm long. By comparison, the seeds of E. ibaguense are only 2.9 mm long.
Scaphyglottis is a genus of orchids native to Mexico, Central America, northern South America and parts of the Caribbean. The current concept of this genus is the result of combining several genera which have been described at various times. The concept is characterized by the growth habit: not only are new pseudobulbs added at the base of the old ones, but new pseudobulbs also grow at the apices of the old ones. Many species are quite similar and difficult to distinguish, but some are clearly distinct. A few have showy colors. The genus comprises nearly 70 species.
Epidendrum compressum is a species of orchid in the genus Epidendrum from wet montane forests of Trinidad, Venezuela, Colombia, Ecuador, Peru and Bolivia.
Epidendrum microphyllum is a species of tropical orchid in the genus Epidendrum with non-resupinate flowers.
Oncidium altissimum, Wydler's dancing-lady orchid, is a species of orchid native to the West Indies, with an 18th-Century citation from Jamaica.
Epidendrum ibaguense is a species of epiphytic orchid of the genus Epidendrum which occurs in Trinidad, French Guiana, Venezuela, Colombia and Northern Brazil.
Epidendrum rigidum is an epiphytic reed-stemmed Epidendrum orchid common throughout the Neotropical lowlands, below 600 m (2,000 ft).
Epidendrum smaragdinum is an epiphytic sympodial orchid native to the Neotropics. It has been found at 0.5 km above sea level in Napo, Ecuador It is also known from Brazil, French Guiana, Guyana, Peru, Suriname, and Venezuela.
Epidendrum parviflorum is a small-flowered reed-stemmed Epidendrum orchid found in the montane tropical wet forests of Bolivia, Ecuador, and Amazonas, Peru.
Epidendrum ruizianum is an epiphytic reed-stemmed Epidendrum of the orchid family native to the cloud forests of Bolivia, Colombia, Ecuador, Peru, and Venezuela, at altitudes of 2–3 km.
Leslie Andrew Garay, born Garay László András, was an American botanist. He was the curator of the Oakes Ames Orchid Herbarium at Harvard University, where he succeeded Charles Schweinfurth in 1958. In 1957 he was awarded a Guggenheim Fellowship.
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