The Gaping Oncidium is native to Brazil and probably Peru. For the first time, these plants were encountered near Ouro-Preto in the state of Minas Gerais. They grew deep inland, on a plateau, in a region covered with dwarf vegetation, at heights up to 1000 m. There are also reports of occurrence in cooler mountains in the state of Pará, but it has not been able to accurately locate either the habitat or its height. This species is mentioned by Schlechter as probably found in Peru, but Schweinfurth (1961) was unable to confirm its presence there. In addition, the latest literature does not confirm the extension of the area of occurrence of this species to Peru.
Oncidium hians orchid, also called as The Gaping Oncidium refers to the large teeth of the callus, is a species of the genus Oncidium. This species was first described by Lindley in 1838. Several synonyms are know for this species such as: Aurinocidium hians, Grandiphyllum hians, Oncidium leucostomum, Oncidium maxilligerum, Oncidium quadricorne.
IDENTIFY ONCIDIUM HIANS ORCHID
The Gaping Oncidium is native to Brazil and probably Peru. For the first time, these plants were encountered near Ouro-Preto in the state of Minas Gerais. They grew deep inland, on a plateau, in a region covered with dwarf vegetation, at heights up to 1000 m. There are also reports of occurrence in cooler mountains in the state of Pará, but it has not been able to accurately locate either the habitat or its height. This species is mentioned by Schlechter as probably found in Peru, but Schweinfurth (1961) was unable to confirm its presence there. In addition, the latest literature does not confirm the extension of the area of occurrence of this species to Peru.
Oncidium hians orchid is a miniature sized, cool to warm growing epiphyte reaching 6-12 cm in height, with slightly compressed, round pseudobulbs with 1-2 cm tall, partially enveloped by 2 to 3, basal, dry, scarious sheaths and carrying a single, apical, leathery, oblong to linear-oblong, keeled dorsally, shortly conduplicate below into the base leaf. The leaves are usually 3-7 cm long, but sometimes they reach as much as 10 cm.
This plant blooms in the winter on a basal, slender, erect, simple to few branched, many flowered inflorescence (12-30 cm long) arising on a mature pseudobulb with well spaced flowers. The flowers are 1.0-1.5 cm in diameter. Typically the petals of both whorls are reddish-brown with yellow edges, but they can also be completely yellow-brown or yellow with red-brown longitudinal stripes. The lip is light yellow and may or may not have red-brown spots. The bulge is white.
GROW AND CARE ONCIDIUM HIANS 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.
Light:
The plants need a light source with 18000-25000 lux. The light should be filtered or dispersed, and the plants should not be exposed to the direct sunlight of the midday sun. Growers report that these plants require moderate shade. Strong air movement should be ensured all the time.
Temperature:
The average temperature of the summer day is 24-25 ° C, and the summer night is 16 ° C, which gives a daily difference of 8-9 ° C. The average temperature of the winter day is 22-23 ° C, and the night 9-11 ° C, giving a daily difference of 13 ° C.
Humidity:
Oncidium hians orchid need average humidity at almost 75% in summer and early autumn, but drops to 70% from late autumn until spring.
Substrate and growing medium:
Any very loose and airy substrate, or cultivation on rootstocks, as long as high humidity is ensured, a well drain medium such as medium fir bark is good.
Watering:
The plants should often be watered during the growing season, but their roots must dry fast between watering. Water the plant right before the potting mix starts to dry. When new growths reach maturity in autumn, the amount of water should be gradually reduced. In winter, the amount of water to be planted should be reduced, but it can not be excessively dry or stay dry for too long. Occasional morning fogging between light watering every 3-4 weeks should provide sufficient hydration.
Fertilizer:
During the growing season, weekly use 1/4 - 1/2 doses of fertilizer for orchids should be used. Fertilization should be reduced or eliminated until new growths appear in the spring and more abundant watering starts.
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