Jones' Oncidium is native to Argentina, Paraguay and Brazil. Originally this epiphytic orchid was found in northern Paraguay, about 97 km south of Río Apa. Currently, it is known about its occurrence in Brazil in the savannahs in the states of Mato Grosso, Minas Gerais and São Paulo. Usually they are found on trees growing along streams. The Association orchid of São Paulo reports (1977) that these orchids were found in the mountains in the north of the state of Minas Gerais, where they grew on rocks at an altitude of 600-800 m.
Oncidium jonesianum orchid, also called as Jones' Oncidium, is a species of the genus Oncidium. This species was first described by Heinrich Gustav Reichenbach in 1883. Several synonyms are know for this species such as: Cohniella jonesiana; Oncidium jonesianum var. binotii; Stilifolium jonesianum; Trichocentrum jonesianum.
IDENTIFY ONCIDIUM JONESIANUM ORCHID
Jones' Oncidium is native to Argentina, Paraguay and Brazil. Originally this epiphytic orchid was found in northern Paraguay, about 97 km south of Río Apa. Currently, it is known about its occurrence in Brazil in the savannahs in the states of Mato Grosso, Minas Gerais and São Paulo. Usually they are found on trees growing along streams. The Association orchid of São Paulo reports (1977) that these orchids were found in the mountains in the north of the state of Minas Gerais, where they grew on rocks at an altitude of 600-800 m.
It is a medium sized, cool to hot, pendant growing epiphyte, which reaching 15-40 cm of height, with very small, ovoid pseudobulbs (1 cm long) carrying a single, apical, fleshy, terete, linear, grooved, leaf (15-40 cm long) with a thorn like apex.
The plant blooms in the fall with an arching to pendant, 2' (60 cm) long, few to several (6 to 16) flowered, compressed, slender raceme with ovate, triangular, shortly triangular bracts and longlasting, showy and nodding flowers. The flowers are 5-7 cm in diameter. The flakes of both whorls are yellowish-white, but have quite large nut-brown spots. The ridge has a large white middle plot, where the base is usually a few red dots, and the small side ears similar to the ears are yellow with red spots. The yellow or whitish comb is large, covered with warts and dotted in red. The green stump has red spots and white wings at the apex, also with red spots.
GROW AND CARE ONCIDIUM JONESIANUM ORCHID
Cultural information should only be used as a guide, and should be to be adapted to suit you. Your physical location; where you grow your plants, how much time you have to devote to their care, and many other factors, will need to be taken into account. Only then can you decide on the cultural methods that best suit you and your plants. And Oncidium jonesianum orchid is considered an orchid difficult to grow.
Light:
The plant need 20000-30000 lux, but should be protected from the direct sun. To provide such conditions, hung the plant at north-east window and additionally shade it during summer. This is important because at the first flowering, the intense October sun burned the top of the inflorescence and only 2 lower buds are preserved - so you have to be very careful.
Temperature:
The average temperature of the summer day is 31 ° C, and the summer night 19-20 ° C, which gives a daily difference of 11-12 ° C. The average temperature of the winter day is 27-29 ° C, and the night 14-16 ° C, giving a daily difference of 13 ° C.
Humidity:
Almost 85% in summer and early autumn, then gradually drops to almost 65% in late winter and early spring, and then in late spring increases sharply when the rainy season begins.
Substrate and growing medium:
This orchid is best grow on a rootstock or in a clay pot with numerous holes in a permeable ground (bark with a small addition of pearlite), so the water drips quickly and the roots have access to air.
Watering:
Cultivated plants should often be watered every week during active growth, but the roots must dry out between waterings, because this plant exceptionally hates "wet feet". When new growths reach maturity in autumn, the amount of water should be gradually reduced to every 2-3 weeks, but make sure the substrate is dry before the next watering.
Fertilizer:
In the period of growth, fertilize the orchid every time you water with the 1/2 of the recommended dose of fertilizer for orchids, dissolved in rainwater with a small addition of stagnant tap water. Fertilization should be reduced in autumn and may be eliminated in winter.
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