Pamianthe peruviana Early | |
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Botanical illustration of Pamianthe peruviana | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Amaryllidaceae |
Subfamily: | Amaryllidoideae |
Genus: | Pamianthe |
Species: | P. peruviana |
Binomial name | |
Pamianthe peruviana Stapf | |
Pamianthe peruviana is native to Peru and Bolivia [2] | |
Synonyms [2] [3] | |
Pamianthe cardenasii Traub |
Pamianthe peruviana, also known as the giant Peruvian daffodil, [4] [5] is a species of epiphytic plant native to seasonally dry areas of Peru and Bolivia. [2]
The perennial plants with bulbs [6] produce 5-7 linear leaves [7] with a prominent mid vein, [8] which form a pseudo-stem of up to 30 cm in length. Each leaf may reach lengths of up to 50 cm and widths of 2–4 cm. [6]
The bisexual, radially symmetrical flowers are intensely fragrant. [9] [10] [6] They resemble the flowers of Pancratium . [11] [3] They are produced in groups of 2-4 flowers, which have a 12–25 cm long perianth tube with three nectariferous channels. These features could suggest moth pollination. The pedicel is 1.5–3 cm long. With 8 cm of length, the outer tepals are slightly longer than the 7 cm long staminal cup. [8] The incurved stamens with dorsifixed anthers are inserted in deep notches of the staminal cup, or corona. [6]
Pamianthe is presumed to be moth pollinated based on their floral morphology. [12] Specifically sphingid moths come into question. [8] The plant is self compatible. The fruit takes 12–15 months to mature. [11] [6] [10] Rapid germination occurs under humid conditions at 16-21 °C. [13] [6] Seedlings reach maturity within four to five years. [11] [14]
Pamianthe peruviana can also reprocuce asexually through stolons. [15] [16]
The diploid chromosome count of Pamianthe is 2n = 46. [17] [18]
The generic name Pamianthe refers to Major Albert Pam. [19] [20] [8] [21] The specific epithet peruviana references this species origin in Peru.
Pam discovered the species in 1926 on a bulb collecting expedition in Peru. [20] Other sources state he received bulbs from Peru in 1928. [16] [8] Pam, who introduced the species to horticulture, was a friend of the horticulturalist Edward Augustus Bowles (1865 - 1954), [21] [19] to whom he gave a Pamianthe peruviana specimen in the 1930s. [22] He also donated Pamianthe peruviana to the Royal Botanic Gardens, Kew in 1937. [23]
It was found along streams in the warm to temperate northern region of Peru at elevations of 1800 m above sea level. [24] [25]
There is conflicting information on the taxon authorship of this species. One source claims it to be anonymous, [26] whereas most give Otto Stapf as the taxon author. The type specimen, which was cultivated by Albert Pam in the United Kingdom, is associated with Stapf as the taxon author. [27]
Pamianthe peruviana is the type species of the genus Pamianthe. [8]
Despite being the same taxon, [2] [8] it has been reported that Pamianthe cardenasii were a bulbous geophyte, and Pamianthe peruviana were an epiphyte. [28]
Some degree of possible hybridization was identified between Pamianthe peruviana and Pamianthe ecollis . According to a molecular clock analysis, both species shared a common ancestor 18.22 million years ago. This means Pamianthe peruviana diverged in the early Miocene. [1]
It is presumed to be extinct in the wild. [29] [30] [31] [32] It is not known when it was last recorded. [33] According to the Cambridge Botanic Garden the conservation status has not been evaluated. [34] Under its synonym Pamianthe cardenasiiTraub it has also been classified as not evaluated by the national herbarium of Bolivia in 2005. [35]
Ex-situ conservation is ensured in several living collections, such as the living collection of the Gothenburg Botanical Garden, the Royal Botanic Garden Edinburgh Living Plant Collections, [36] the Oxford Botanic Garden, [4] as well as private collections.
Despite it being very rare in cultivation, [37] it can be easily cultivated as a houseplant if kept in a well aerated substrate, [38] because it is intolerant of waterlogged conditions, which rapidly induce root rot. [11] Ideally, it should be cultivated under moderately bright, humid conditions at temperatures of 18-30 °C. [37] Seeds can be sown all year round. The optimal time is March–August. The remaining months are less optimal. The germination temperature should not be below 20 °C. [39] Pamianthe makes a good greenhouse or container display. [40] It is also suitable as a long-lasting cut flower. [16]
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Eucrosia is a genus of herbaceous, perennial and bulbous plants in the Amaryllis family distributed from Ecuador to Peru. The name is derived from the Greek eu, beautiful, and krossos, a fringe, referring to the long stamens. As circumscribed in 2020, the genus contains six species. Phaedranassa and Rauhia are the genera most closely related to Eucrosia.
Pamianthe is a genus of South American bulbous perennials in the Amaryllis family, subfamily Amaryllidoideae. They can be found in sandy, but rocky areas in Colombia, Ecuador, Peru, and Bolivia.
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Griffinia is a genus of Brazilian plants in the Amaryllis family, subfamily Amaryllidoideae. It includes 23 known species which are endemic to Brazil. The most closely related genus to it is the monotypic Worsleya.
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Alan W. Meerow is an American botanist, born in New York City in 1952. He specializes in the taxonomy of the family Amaryllidaceae and the horticulture of palms and tropical ornamental plants. He also works on the population genetics and molecular systematics of cycads and palms.
The Amaryllidaceae are a family of herbaceous, mainly perennial and bulbous flowering plants in the monocot order Asparagales. The family takes its name from the genus Amaryllis and is commonly known as the amaryllis family. The leaves are usually linear, and the flowers are usually bisexual and symmetrical, arranged in umbels on the stem. The petals and sepals are undifferentiated as tepals, which may be fused at the base into a floral tube. Some also display a corona. Allyl sulfide compounds produce the characteristic odour of the onion subfamily (Allioideae).
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Amaryllidoideae is a subfamily of monocot flowering plants in the family Amaryllidaceae, order Asparagales. The most recent APG classification, APG III, takes a broad view of the Amaryllidaceae, which then has three subfamilies, one of which is Amaryllidoideae, and the others are Allioideae and Agapanthoideae. The subfamily consists of about seventy genera, with over eight hundred species, and a worldwide distribution.
Paramongaia is a genus of South American plants in the Narcissus Family ( Amaryllidaceae), the most important species being Paramongaia weberbaueri found only in the Andes of Peru and Bolivia. Common names are "giant Peruvian daffodil." and Cojomaria. Its appearance resembles the "King Alfred" Daffodil, but the flower is up to 7.25 inches in length by 7.5 inches wide with a corona 3.3 inches by 3 inches long by three inches wide.
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Stenomesseae was a tribe, where it forms part of the Andean clade, one of two American clades. The tribe was originally described by Traub in his monograph on the Amaryllidaceae in 1963, as Stenomessae based on the type genus Stenomesson. In 1995 it was recognised that Eustephieae was a distinct group separate from the other Stenomesseae. Subsequently, the Müller-Doblies' (1996) divided tribe Eustephieae into two subtribes, Stenomessinae and Eustephiinae.
Clinantheae is a tribe, where it forms part of the Andean clade, one of two American clades. The tribe was described in 2000 by Alan Meerow et al. as a result of a molecular phylogenetic study of the American Amaryllidoideae. This demonstrated that the tribe Stenomesseae, including the type genus Stenomesson was polyphyletic. Part of the tribe segregated with the Eucharideae and were submerged into it, while the other part formed a unique subclade. Since the type species of Stenomesson was not part of the second subclade, it was necessary to form a new name for the remaining species together with the other genera that remained. This was Clinanthus, the oldest name for these species, and consequently the tribe Clinantheae.
Hymenocallideae is a tribe, where it forms part of the Andean clade, one of two American clades. The tribe was originally recognised by both Meerow (1995) and the Muller-Doblies' (1996). Its phylogenetic position within the Amaryllidoideae was established by Meerow et al. in 2000, while in-depth infratribal relationships were established in 2002.
Stenomesson leucanthum is a species of flowering plant in the family Amaryllidaceae. It is native to Peru. Pierfelice Ravenna, the Chilean botanists who first formally described the species, using the basionym Pucara leucantha, named it after its white flowers.