Its soft wood is used for plywood (Quesada-Quesada et al., 1997). But, it is not suitable for most construction (Devell et al., 1995). While it is a large tree, it is not recommended for regeneration because it has low stability except in soils with high organic matter and low aluminium (Butterfield 1996).
It has pharmaceutical potential for HIV and cancer chemoprevention (Calderon et al., 2000).
Besides its bat pollinators P. septenatum is an important resource for many animals. It is a dominant source of pollen for Megalopta. They fly hundreds of meters for these even when there are closer sources of pollen (Smith et al., 2012). It is also a host tree for the beetle Brentus anchorago (Johnson, 1983).
It also acts as a source of food for mammals. The endangered squirrel monkey (Saimiri oerstedii), consume its nectar and petals, destroying its flowers (Happel, 1983).
A study in Córdoba, Colombia found that P. septenatum was the main source of food for sloths possibly because the fragmented, dry forest in the area was dominated by P. septenatum.The sloths eat their flowers, leaves, and shoots, therefore, it acts as a constant food source throughout the year for the sloths (Ballesteros et al., 2009).
It has winged seeds that are dispersed by wind. It releases its seeds when wind is strongest from March to May (Croat, 1978). Seed dry weight is 570 mg (Augsburger, 1984). The kapok that covers the seeds allows them to survive in water (Croat, 1978).
Leaf phenology
At the beginning of the dry season (January-February) P. septenatum drops its leaves (Croat, 1978). Precipitation is the main limiting factor that drives leaf phenology (Devall et al., 2005). Phenology might be a result of a high risk of embolism in leaf bearing stems and petioles, due to water stress.Machado and Tyree (1994) study predicted leaf area would decrease by 5-30% a result of embolism if the species would keep its leaves in the dry season. However, this is not a big enough difference to be the main reason for phenology. Populations in different locations dropped their leaves around the same time, indicating that senescence is not based solely on climatic factors (Lobo et al., 2003). Leaves regrow at the beginning of the wet season in May (Croat, 1978).
Flowering
Flowers at the beginning of the dry season in February, two weeks after it drops its leaves (Croat, 1978). However, one study found that it begins in December and is the first Bombacoidae to flower and has the longest flowering period. Few flowers are produced at the beginning and end of the dry season to have this extended flowering period. Flowering increases in March (Lobo et al., 2003). Pseudobombax septenatumproduces a white to light pink inflorescence. There are 5 linear petals that are 7-9 cm long and 2 cm wide. The central filament is surrounded by more than 1000 stamen that curl backward creating a dense pufflike cluster that is 9 cm wide and 6 cm long (Gargiullo et al., 2008).
Pollination
Like most bombacoidae trees, the flowers are pollinated by bats (Croat, 1978). These bats include Carollia perspicillata, Leptonycteris curasoae and Glossophaga soricina (Lobo et al., 2003).
Fruiting
Fruit is produced from February to April.The fruit is a green, dry capsule with purple vertical lines and is 18 cm long and 9 cm wide (Gargiullo et al. 2008). It contains gray fibers called kapok and tiny seeds (Croat 1978). The capsule opens to release the seeds that are covered in the kapok.
The trunk is swollen at the base and lack buttresses and spines (Condit et al., 2011). The bark contains vertical green lines. The stalks are 10-60 cm long.The leaves are alternate and palmately compound composed of elliptic leaflets with pointy tips and prominent secondary veins. The leaflets vary from 7-29 cm long and 4-14 cm wide. (Gargiullo et al., 2008).
Pseudobombax septenatum is more commonly associated with the Holdridge life zone of tropical dry forest, but also is in tropical moist forest, premontane moist forest, and even tropical rainforest in Brazil (Croat, 1978).It is more commonly found in open areas because while it is shade tolerant for short periods of time, it grows significantly faster in the sun. When there is sun, it is a fast growing tree with low wood density (Augsburger, 1984), given that, it is rare in mature forest and only found in large clearings (Condit et al., 2011).
Pseudobombax septenatum is distributed from Nicaragua to Brazil and Peru (Croat, 1978). It is more prominent in drier areas such as on the pacific slope and in young, secondary forest (Condit et al., 2011). It is found in Barro Colorado Island, Panama and the pacific side of Isla del Caño, Costa Rica (Croat, 1978). However, there are few saplings and is not readily regenerating (Condit et al., 2011).
Pseudobombax septenatumis a deciduous tree in the family Malvaceae and the subfamily Bombacoidae that grows to about 25 m. Green, vertical lines run up the stem of the tree. The mean DBH is 140 cm and has a bulging base (Croat, 1978). This bulging stem is 70 times more efficient at transferring water to the leaves that the leaf bearing stems. This allows it to have high transpiration rates and decreases the risk of embolism in the leaves and reproductive parts (Machado & Tyree, 1994). It is common in secondary forests from Nicaragua to Brazil (Croat, 1978; Condit et al., 2011). It has white flowers that are pollinated by bats and are eaten by monkeys and sloths (Croat, 1978; Happel, 1983; Ballesteros et al., 2009). It produces woody, dehiscent fruit that is filled with grayish kapok or cottony filaments and winged seeds that are dispersed by wind (Croat, 1983).
Pseudobombax septenatum is of the family Malvaceae, commonly known as Algodón de río, beldaco, ceibo barrigón, majagua colorada[1] or barrigon. It is a deciduous tree up to 80 feet (24 meters) in height which grows in semideciduous rainforest with a definite dry season. It is found from Nicaragua to Brazil. Its flowers are cream-colored and like those of Ceiba spp., in forming a roundish cluster of stamens on a stalk surrounding the pistel, in this instance up to one thousand stamens in number.[2] The leaves generally have seven smooth-edged narrowly oblong leaflets. It was originally named Pachira barrigon, and later Bombax barrigon. It has the bright green lines running through the bark that is also seen in Ceiba spp. and Chorissa spp.
It was first described in 1760 by the Dutch scientist Nikolaus Joseph von Jacquin as Bombax septenatum.[3][4] The current name is from Armando Dugand in 1943.[1]
Pseudobombax septenatum is of the family Malvaceae, commonly known as Algodón de río, beldaco, ceibo barrigón, majagua colorada or barrigon. It is a deciduous tree up to 80 feet (24 meters) in height which grows in semideciduous rainforest with a definite dry season. It is found from Nicaragua to Brazil. Its flowers are cream-colored and like those of Ceiba spp., in forming a roundish cluster of stamens on a stalk surrounding the pistel, in this instance up to one thousand stamens in number. The leaves generally have seven smooth-edged narrowly oblong leaflets. It was originally named Pachira barrigon, and later Bombax barrigon. It has the bright green lines running through the bark that is also seen in Ceiba spp. and Chorissa spp.
It was first described in 1760 by the Dutch scientist Nikolaus Joseph von Jacquin as Bombax septenatum. The current name is from Armando Dugand in 1943.
El ceibo barrigón o barrigón (Pseudobombax septenatum) es un árbol de la subfamilia Bombacoideae, estrechamente emparentado con las ceibas (Bombax spp.); es natural de América Central y del Sur, distribuyéndose desde Nicaragua hasta Venezuela y Colombia.
Es un árbol de gran porte, de hoja caduca; el fuste es fusiforme, frecuentemente con un engrosamiento abombado cerca de la base. La corteza es pardogrisácea, con rayas distintivas de color verde que se atenúan con la edad pero permiten diferenciarlo durante toda su vida. La copa se concentra en la parte superior; durante la mayor parte de su longitud carece de ramas. Las hojas son compuestas, palmadas, de entre 5 y 7 folíolos de hasta 15 por 7 cm, obovados, acuminados, con un corto pecíolo que se prolonga en peciolulos acanalados. Pierde por completo las hojas alrededor de diciembre, y no las recupera hasta el comienzo de la temporada de lluvias en abril o mayo.
Las flores se presentan solitarias o en cimas de 2 a 5 flores; alcanzan los 10 cm, y se abren por la noche. Los pétalos son lanceolados, pubescentes, carnosos, de 7 a 9 cm de longitud y color rosado o crema; los estambres son numerosísimos, formando bolas blancas con apariencia de pompones. El estigma es normalmente lobulado, a veces capitado; el ovario súpero. La polinización es zoofílica, realizada frecuentemente por murciélagos herbívoros, que se nutren de los pétalos. Hacia comienzos de la estación seca forman frutos en cápsulas dehiscentes, pentavalvas, leñosas, conteniendo numerosas semillas envueltas en filamentos algodonados de color blancogrisáceo que ayudan a su dispersión por anemocoria.
Es frecuente en los bosques secundarios de Centroamérica, aunque los juveniles se han reducido en número en los últimos años por la reducción de su sistema. Aparece en bosques húmedos y secos, y en regiones de dunas, detrás de la línea de mareas, sobre todo en la costa del Océano Pacífico; se adapta a altitudes de hasta 600 m.
P. septenatum no se cultiva, aunque su semilla es comestible. Se empleaba tradicionalmente la fibra de las cápsulas como aislante y para elaborar almohadas, de manera similar a la del kapok, Ceiba pentandra.
Usada como fibra de amarre de canastos. Especie muy usada como cerca viva por su prendimiento en queje o estacones.[1]
La corteza se extrae fácilmente de árboles jóvenes; en ejemplares adultos la fibra se extrae golpeando y machacando la corteza.
Pseudobombax septenatum fue descrita por (Jacq.) Dugand y publicado en Caldasia 2(6): 65–67. 1943.[2]
Datos: Q6089768
Multimedia:
Especies: Pseudobombax septenatum
El ceibo barrigón o barrigón (Pseudobombax septenatum) es un árbol de la subfamilia Bombacoideae, estrechamente emparentado con las ceibas (Bombax spp.); es natural de América Central y del Sur, distribuyéndose desde Nicaragua hasta Venezuela y Colombia.
Pseudobombax septenatum là một loài thực vật có hoa trong họ Cẩm quỳ. Loài này được (Jacq.) Dugand miêu tả khoa học đầu tiên năm 1943.[1]
Bài viết liên quan đến họ Cẩm quỳ này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Pseudobombax septenatum là một loài thực vật có hoa trong họ Cẩm quỳ. Loài này được (Jacq.) Dugand miêu tả khoa học đầu tiên năm 1943.
