Butia yatay

Butia yatay
Specimens of Butia yatay in the Parque Nacional El Palmar, Entre Ríos, Argentina
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Arecales
Family: Arecaceae
Genus: Butia
Species:
B. yatay
Binomial name
Butia yatay
(Mart.) Becc. [1916]
Synonyms[1][2]
  • Cocos yatay Mart. [1844]
  • Calappa yatay (Mart.) Kuntze [1891]
  • Syagrus yatay (Mart.) Glassman [1970]
  • Butia capitata subsp. yatay (Mart.) Herter [1940]
  • Butia missionera Deble & Marchiori [2011]
  • Butia quaraimana Deble & Marchiori [2012]

Butia yatay, the jelly palm or yatay palm,[3] is a Butia palm native to southern Brazil, Uruguay and northern Argentina.[1] It is known as the butiá-jataí in Portuguese in the south of Brazil,[4][5] as well as simply jataí or butiá.[5] It is sometimes cultivated as an ornamental in Europe and the United States.[3][6] It is the tallest of all the species in the genus Butia.[citation needed] The fruit is edible with a sweet flavour.[7]

Etymology

This is one of only a few plants in which the scientific name is completely derived from Native American languages. Butia is from a local Brazilian vernacular name likely derived from Old Tupi ᵐba atí, meaning 'thorny thing', which probably refers to the spines along the petiole margins of most species. The specific epithet yatay is adopted from the Guaraní language word for such palms, yata'i, which itself refers to the small, hard fruit.[6][8]

Taxonomy

In 1970 Sidney Fredrick Glassman moved this species, along with all other Butia, to Syagrus,[9] but in 1979 he changed his mind and moved everything back.[10]

A population of Butia palms growing in Paraguay known as B. dyerana was synonymised with this species by Glassman,[3] but this population was reclassified as a synonym of B. paraguayensis by at least 1996, removing B. yatay from the flora of Paraguay.[11]

B. poni (Hauman) Burret [1930] (syn. Cocos poni Hauman [1919], a nomen nudum) was considered a synonym of B. yatay (and B. paraguayensis, pro parte, fide Soares [2015][6]), but was recognised as a species in its own right in 2017 by Deble after he rediscovered a population of the species in Argentina and was able to confirm its distinctiveness.[12]

The recent taxa B. missionera and B. quaraimana described by Deble & Marchiori from Rio Grande do Sul, Brazil, and B. noblickii described by Deble from a population of palms in Corrientes Province of Argentina, have all been synonymised with this species either by Soares et al. in 2014, or Soares in 2015.[6][13]

Description

This is a solitary-trunked palm; the trunk often grows at an incline and is from 3 to 16m,[6] exceptionally 18m tall,[7] although they usually grow shorter in Brazil (to 8m).[5] The trunks grow from 30 to 55 cm in diameter, usually retaining a coat of old leaf bases which do not shed easily naturally and which remain persistent for many years.[6]

Leaves

Leaves with pinnae arranged in a single plane per side of the leaf in Buenos Aires, Argentina.

There are 11 to 31 pinnate leaves arranged spirally around the crown of the trunk.[6] The 40–130 cm long petiole of the leaf has margins armed in stiff teeth which may grow up to 4 cm in length, as well as fibres along the margins. The leaf has a rachis that is 163–200 cm in length. There are (57-)63-78 glaucous-coloured pinnae (leaflets) along this rachis, these pinnae are (58-)65–77 cm long and 2–3 cm wide in the middle of the leaf. The pinnae are inserted at a single plane on both sides of the rachis, such that each pair of pinnae form a 'V'-shape.[4][6]

Inflorescence

The developing inflorescence is protected within a woody, hairless spathe which is lightly striated and 105–135 cm in total length, the swollen part of this spathe being 40–110 cm long and 7–14 cm wide. The branched inflorescence has a 40–75 cm long and 1.5-2.2 cm wide peduncle (stalk). The rachis of the inflorescence is 40–72 cm long and has 68-155 rachillae (branches) which are 16–72 cm long. The flowers are coloured yellow, yellow-purple, greenish-yellow or entirely purple. The staminate (male) flowers are 9-10mm in length; the pistillate (female) flowers 13–17(–18)mm.[4][6]

Compared with other extant palms in the region, Butia yatay has the largest-sized pollen grains on average. They are bilaterally symmetrical, suboblate-shaped, the end piriform (pear-shaped), and monosulcate. The surface is covered in minute 2μm-large reticulate patterns.[14]

Fruit & seeds

Butia yatay bearing almost ripe fruit along the banks of the Río Negro in the Cerro de la Palmera, Río Negro Department, Uruguay

The shape of the fruit is ovoid. The shape of the 1.8-2.8 by 1-1.7 cm nut is elongated, ellipsoid or turbinate, and it weighs 1.1-3.5g.[4][6] The ripe fruit are 2.7–4.2 cm (1.1–1.7 in) by 1.5–3.8 cm (0.59–1.50 in) in size, weigh 8–23 g (0.28–0.81 oz), and have a persistent perianth. The fruit may be coloured yellow, orange, red, or purple,[6] while the flesh is yellow, sweet, juicy, and slightly fibrous.[6][7] The nut often has a beak or protuberance at its extremities, and has homogeneous endosperm and from 1 to 3 seeds.[6]

Similar species

In his 1979 key to the genus Butia, Glassman compares this species with B. paraguayensis, the main differences being the taller trunk, the longer leaf rachis with more wider and longer pinnae, the spathe (being almost twice the size), and larger fruit, beyond the range of B. paraguayensis.[10]

Distribution

In Brazil it only occurs in the southernmost state of Rio Grande do Sul, and there only in the municipalities of Giruá and Quaraí.[4][6] In Argentina it occurs in the northern-center provinces of Chaco, Corrientes, Entre Ríos, Misiones (in the municipalities of Candelaria and San Ignacio) and Santa Fe. In Uruguay it only occurs to the west in the departments of Paysandú and Río Negro.[1]

Bauermann et al. investigated the possibility of using palm pollen, including this species, in palynology, in order to try to provide more detail about the ancient changes in habitat in the state Rio Grande do Sul in Brazil by tracking the changes in distribution and abundance of the palms, but were unable to provide much detail on the subject.[14]

Habitat and ecology

Palms growing in the wild in El Palmar, Entre Rios, Argentina.

This slow-growing palm grows to 12[15]-18m[7] tall, with a trunk diameter of 50 cm,[7] in giant, ancient, almost monoculture groves in savannah habitats (called pampa(s) in Latin America).[4][5][7][15][16] It is usually found in sandy soils,[7] which are often much rockier than that in which other Butia are found.[14] It grows at altitudes of 0-500m.[1]

It fruits abundantly in the summer and the seeds germinate in the wild in the spring or the fall.[5]

The nuts of this palm are alleged to have been the main diet of the glaucous macaw in 1993, although the taxonomy of local Butia populations has changed somewhat since then.[16]

Butia yatay is thought to be one of the natural hosts for larvae (caterpillars) of the giant day-flying moth Paysandisia archon which attack the piths of this palm, along with many other palm species, at least in Europe where the moth has naturalised after likely being introduced from Argentina hidden in the trunks of B. yatay and Trithrinax campestris in consignments of palms imported for ornamental horticulture. An infestation can kill the palm. The moth prefers genera of palm with hairy trunks as the fibre is used in the construction of the cocoon for the pupa; in Europe it prefers Trachycarpus above all, but also Trithrinax or Chamaerops.[17][18]

Horticulture

Seeds (or rather, nuts) are collected in Brazil for the international ornamental plant industry.[5]

It is advised to plant the palms in full sunlight. It is said to take -12 °C, but should be protected at -5 °C in the Netherlands.[19]

It is commonly grown and sold in Japan as an ornamental lawn plant.

Conservation

In 2008 the conservation status in Brazil was classified as 'data deficient' by the federal Ministério do Meio Ambiente. In 2012 the conservation status in Brazil was evaluated as 'vulnerable' by the Centro Nacional de Conservação da Flora. Although it occurs over an extensive range, both the size and quality of the remaining habitat is threatened due to the expansion of forestry and agricultural activities.[5]

Specimens are cultivated ex situ in Brazil in the Botanical Garden of Rio de Janeiro and the Inhotim Botanical Garden.[5]

See also

Bibliography

  • Jorge Chebataroff (1974).- Palmeras del Uruguay. Montevideo, Facultad de Humanidades y Ciencias.
  • Burkart, A. 1957. La Vegetación del Delta del Río Paraná. Darwiniana 11(3): 457–561.
  • Devoto & Rothkugel. 1942. Índice flora leñosa Argentina. Publ. Misc. Min. Agric. 140: 35–142.

References

  1. ^ a b c d "Flora del Conosur" (in Spanish). Instituto de Botánica Darwinion. Retrieved 14 September 2018.
  2. ^ Govaerts, R. (2018). "World Checklist of Selected Plant Families". Royal Botanic Gardens, Kew. Retrieved 14 September 2018.
  3. ^ a b c "Butia yatay". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 2010-04-24.
  4. ^ a b c d e f Heiden, G.; Ellert-Pereira, P.E.; Eslabão, M.P. (2015). "Brazilian Flora Checklist - Butia yatay (Mart.) Becc". Butia in Lista de Espécies da Flora do Brasil, Flora do Brasil 2020 under construction (in Portuguese). Jardim Botânico do Rio de Janeiro. Retrieved 11 October 2018.
  5. ^ a b c d e f g h Prieto, Pablo Viany (2 May 2012). "Centro Nacional de Conservação da Flora - CNCFlora" (in Portuguese). Retrieved 11 October 2018.
  6. ^ a b c d e f g h i j k l m n Soares, Kelen Pureza (2015). "Le genre Butia". Principes (in French). 1: 12–57. Retrieved 11 October 2018.
  7. ^ a b c d e f g "Parque Nacional El Palmar - Flora" (in Spanish). Retrieved 14 September 2018.
  8. ^ Jiménez, Belen; Knapp, Sandra (1998). "Palms of the Reserva Natural del Bosque Mbaracayú, Paraguay (Mbaracayú Natural Forest Reserve)" (PDF). Principes. 42 (2): 65–79. Retrieved 15 September 2018.
  9. ^ Glassman, Sidney Fredrick (1970). "A conspectus of the palm genus Butia Becc". Fieldiana. 32 (10): 157–161. doi:10.5962/bhl.title.2384. Retrieved 11 October 2018.
  10. ^ a b Glassman, Sidney Fredrick (1979). "Re-evaluation of the Genus Butia With a Description of a New Species" (PDF). Principes. 23: 70–71. Retrieved 11 October 2018.
  11. ^ Govaerts, R. (2018). "World Checklist of Selected Plant Families". Royal Botanic Gardens, Kew. Retrieved 17 September 2018.
  12. ^ Paz Deble, Leonardo; Keller, Héctor A.; Da Silva Alves, Fabiano (August 2017). "Resurrection and epitypification of Butia poni (Arecaceae), a neglected palm micro-endemic in the grasslands of Misiones, Argentina". Phytotaxa. 316 (2): 171–180. doi:10.11646/phytotaxa.316.2.6. Retrieved 14 September 2018.
  13. ^ Soares, Kelen Pureza; Longhi, Solon Jonas; Neto, Leopoldo Witeck; de Assis, Lucas Coelho (2014). "Palmeiras (Arecaceae) no Rio Grande do Sul, Brasil". Rodriguésia - Revista do Jardim Botânico do Rio de Janeiro (in Portuguese). 65 (1): 113–139. Retrieved 11 October 2018.
  14. ^ a b c Bauermann, Soraia Girardi; Evaldt, Andréia Cardoso Pacheco; Zanchin, Janaína Rosana; de Loreto Bordignon, Sergio Augusto (June 2010). "Diferenciação polínica de Butia, Euterpe, Geonoma, Syagrus e Thritrinax e implicações paleoecológicas de Arecaceae para o Rio Grande do Sul". Iheringia, Série Botânica (in Portuguese). 65 (1): 35–46. ISSN 0073-4705. Retrieved 11 October 2018.
  15. ^ a b "Butia yatay (Mart.) Becc., Agric. Colon. 10 498 (1916) - PALMweb". Palmweb - Palms of the World Online. Royal Botanic Gardens, Kew. 2013. Retrieved 14 September 2018.
  16. ^ a b Yamashita, Carlos; de Paula Valle, Mauro (1993). "On the linkage between Anodorhynchus macaws and palm nuts, and the extinction of the Glaucous Macaw". Bulletin of the British Ornithologists' Club. 113: 53–60. Retrieved 14 September 2018.
  17. ^ Savela, Markku. "Butia". Lepidoptera and some other life forms. Retrieved 15 October 2018.
  18. ^ "Bestimmungshilfe des Lepiforums - Paysandisia Archon". Lepiforum (in German). 2018. Retrieved 15 October 2018.
  19. ^ Wagelaar, Edwin (31 December 2017). "Het geslacht Butia". Palmexotica (in Dutch). Retrieved 3 October 2018.

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