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The Oncidium Section WALUEWA
This Section comprises 20 species, the plants having conspicuous pseudobulbs which are formed
close together. The dorsal sepal and petals are spreading, the dorsal sepal usually hooded. The column is covered by short hairs, with a bow- shaped, forward projecting fleshy arm on each
side of the stigma being distinctive.2
The species included are albinii,
amictum, chrysorhapis, cornigerum, cruciatum, fimbriatum, gilvum,
leinigii, lietzei, polyodontum pubes, pyxidiphorum, remotiflorum, riograndense,
spegazzinianum, truncatum, venustum, verrucosissimum, waluewa
and widgrenii 2
One. pubes is a variable species, autumn flowering.6 lt produces clustered,
somewhat cylindrical tapering pseudobulbs, about 50 to 60 mm long. The 600 mm long inflorescence is rather densely
many flowered. Each flower is usually less than 25 mm in diameter, sepals and petals usually red-brown, barred
and spotted with yellow. It has been cultivated since 1824.1
 
Oncidium pubes
Onc. lietzei is another autumn flowering
species producing numerous, not fully expanding bright reddish-brown, sometimes yellow spotted flowers on a slender
scape 800 to 1000 mm long. The 50 to 125 mm high pseudobulbs are usually one leaved, clothed for half their length
with whitish sheaths.6 This is a free flowering and growing species
that produces a compact colourful display.
Oncidium lietzii var. bicolor
Onc. waluewa is a "pretty species" having 6 to 9, 20 mm
flowers showing greenish white sepals, petals creamish white
with irregular purple bands. The lip is yellowish- white spotted red.7
Brazil is the home of the species of this Section. The plants in the main are compact, and grow
and flower freely. When mounted on a punga slab they appreciate a reasonably long root run, and like intermediate
conditions. Because they are largely dormant over the winter, they can withstand cooler conditions over that period,
provided they are kept fairly dry.
* ONCIDIUM SLIDE SHOW *
A SERIES OF PHOTOGRAPHS OF ONCIDIUM ORCHIDS- click
on above link
A schedule of flowering times for the Crispa Section oncidiums is available on the follwing link
Crispa Section flowering times
Remember,
growing orchids is all about enjoying your plants
and sharing your growing success with friends and family.
Good luck and good growing.
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