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Stanhopea abbreviated as Stan is a genus of orchids belonging to the orchid family




Image of Stanhopea plant at Google

Stanhopea is a genus of orchids belonging to the orchid family, Orchidaceae. Stanhopea comes from Central and South America. It is abbreviated as Stan in horticultural trade. These are occasionally terrestrial orchids. They are found in damp forests from Mexico to NW Argentina. These are known as upside-down orchids.

Some of the species of this genus are:
– S. anfracta (SE. Ecuador to Bolivia).
– S. annulata (S. Colombia to Ecuador).
– S. avicula (Panama).
– S. candida (S. Trop. America).
– S. carchiensis (Colombia to Ecuador).
– S. cirrhata (C. America)
– S. confusa G. Gerlach & Beeche (2004) (Costa Rica)
– S. connata (Colombia to Peru).
– S. costaricensis (C. America)
– S. deltoidea (Peru to Bolivia).
– S. dodsoniana (NC. & S. Mexico).
– S. ecornuta (C. America).
– S. embreei (Ecuador).
– S. florida (Ecuador to Peru).
– S. frymirei (Ecuador).
– S. gibbosa (C. America).
– S. grandiflora (Trinidad to S. Trop. America).
– S. graveolens (Mexico to C. America, Brazil to NW. Argentina).
– S. greeri (Peru).
– S. haseloviana (N. Peru).
– S. hernandezii (C. & SW. Mexico).
– S. impressa (Colombia to Ecuador).
– S. inodora (Mexico – Chiapas) to C. America).
– S. insignis (SE. & S. Brazil)
– S. intermedia (SW. Mexico).
– S. jenischiana (W. South America).
– S. lietzei (E. & S. Brazil)

Natural Hybrids
– Stanhopea × fowlieana (Stanhopea costaricensis × Stanhopea ecornuta) (Costa Rica)
– Stanhopea × herrenhusana (Stanhopea reichenbachiana × Stanhopea tricornis) (Colombia)
– Stanhopea × horichiana (Stanhopea ecornuta × Stanhopea wardii) (Costa Rica)
– Stanhopea × lewisae (Stanhopea ecornuta × Stanhopea inodora) (Guatemala)
– Stanhopea × thienii (Stanhopea annulata × Stanhopea impressa) (Ecuador)

Intergeneric Hybrids
– × Aciopea (Acineta × Stanhopea). Aciopea Guillermo Gaviria (Acineta erythroxantha × Stanhopea wardii) was registered Nov-Dec 2004 by Guillermo Gaviria-Correa (Colombia).
– × Aciopea is abbreviated Aip..
– × Cirrhopea (Cirrhaea × Stanhopea)
– × Coryhopea (Coryanthes × Stanhopea)
– × Stangora (Gongora × Stanhopea)
– × Stanhocycnis (Polycycnis × Stanhopea)

Growing/Caring conditions for Stanhopea
– Select a location which receives natural sunlight.
– Care should be taken that the location is not too hot.
– Indirect light is preferred in summer.
– Plant the orchid in the location.
– Water the orchid well.
– Care should be taken, not to overwater the orchid.
– Keep the orchid moist.
– Plant blooms in the fall to spring.
– Repotting annually is better for some orchids.
– Plant the orchid in a potting mix of mulch for tropical plants.
– Fertilize the orchid with plant food that is specific for orchids.
– Control the way roots get their oxygen because it is an important factor when they grow.
– This plant needs rich and fertile soil.
– This plant needs well draining soil.
– Add tree fern fibers (for small plants), several pieces of coarse fir bark, or sphagnum moss for draining.
– Dead growth and branches should be removed.

The following fungal and bacterial infections are known to attack the plant.
– Leaf spot is caused by Colletotrichum and Gleosporium
– Leaf blight – caused by Pythium
– Collar blocth – caused by Penicilium thomii
– Collar rot – caused by Sclerotium
– Orchid wilt – caused by Sclerotium rolfsli

To avoid the above, fungicides like Captan, Dithane, Agrosan and Ceresan are very effective.

– More than 32 diseases are known to occur on orchids with the most common are Cymbidium mosaic virus.
– All infected plants should be isolated to prevent spreading of the disease for avoiding.
– The most commonly reported insects pests on orchids are thrips, aphids, spidermite, soft scale, mealy bugs, orchid weevil, snail and slugs.
– They feed on tender young shoot, suck the sap and damage the young bud and shoot and also act as the carrier of different diseases.
– These can be controlled by effective insecticides like Parathion, Malathion, BHC, Aldrin, Dieldrin, etc. Metaldehyde has proved to be very effective in killing slugs and snails.





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