Jonesiopsis is one of the proposed new genera in the breakup of Caladenia in the Orchidaceae family. It is not recognized as a genus universally as many authorities oppose the segregation of Caladenia. Species are terrestrial plants growing from tubers and with a hairy basal leaf. Flowers in this group are spidery with sepals and lateral petals narrowly elongated (filiform). You sometimes see species in this group referred to by a common name of Daddy Long Legs. This proposed genus is similar to Arachnorchis but the sepal tails in that group are thickened and club-like. I must confess that I find it difficult when looking at pictures I’ve found online and in books to see these differences in the sepal tails and the picture below isn’t very helpful in this regard since the ends of the sepal tails are not visible.
The Species Orchid Society of Western Australia hosts a lot of information online about Australian orchids here.
The Australian terrestrial orchids are notoriously challenging to grow, although some enthusiasts are starting to achieve success by cultivating the symbiotic fungus that many of the orchids require in order to grow. Very careful fertilization is required to keep the fungus and orchid in balance. There's a good discussion of the relationship here.
Jonesiopsis footeana syn. Caladenia footeana is native to southwestern Western Australia where it is found growing in clay, loam, or gravel in moist areas. It has red flowers and a red and white striped labellum. Photograph by Mary Sue Ittner of a specimen in a wildflower show in southwestern Australia.
Jonesiopsis polychroma syn Caladenia polychroma , known as Joseph's Spider Orchid is a Western Australia species found in woodlands and displaying a range of colors (white, yellow, orange, red). I believe that this orchid seen in the Stirling Range National Park in late September 2007 could be this species. Some of the segments had been broken off or perhaps eaten giving it an unusual appearance. Photos by Mary Sue Ittner.