Masdevallia mystica

Masdevallia mystica belongs to the Saltatrices group of Masdevallias.  The species in this group have bright colors, tubular flowers and "bellies," a noticeable bulge at the base of the flower.  This "species" is from Ecuador, but is probably a natural hybrid of Masdevallia filaria and Masdevallia ventricularia, two other species in this group.  The plant is 10 cm tall and the flowers are surprisingly small, only a little over 2 cm.

Trisetella triglochin

This is one of the more common Trisetella species, if it is identified correctly.  I've found that most of the plants in this genus I purchase are misidentified.  Trisetella triglochin, also found under the name Trisetella huebneri is found both in southern Central America and northern South America.  It is extremely variable in flower shape and color.  This plant is only 3 cm tall with flowers that are also 3 cm in size and are produced on very thin 5 cm spikes that produce several flowers in succession.

Dendrobium alaticaulinum

Dendrobium alaticaulinum is a New Guinea Dendrobium from the Pedilonum section of that genus.  Most of the New Guinea Dendrobiums I grow are from the Oxyglossum section.  The Pedilonum Dendrobiums tend to be large plants with long semi-pendant canes, but this species is very small in comparison, the canes around 15 cm.  The 2 cm flowers bloom at the end of the canes in clusters and do not open very widely.  The plant is not a very eager bloomer for me, but since I reduced the light a bit it has bloomed a bit more freely.

Stelis ciliolata 'Leia'

Native to Ecuador, this plant is found at higher elevations and requires cool temperatures in cultivation.  Its name, ciliolata, refers to the striking white "hairs" that fringe the sepals.  The plant is 12 cm tall with flower spikes that grow to about 20 cm.  The spikes carry 15 or more 1.5 cm flowers, several of which may be open at a time, and the spikes bloom over a long period.  The plant, as a result, is seldom out of bloom.  This plant has been awarded a certificate of cultural merit by the American Orchid Society.

Mediocalcar decoratum

One of my favorite miniature orchids, this plant produces hundreds of flowers in autumn.  The individual growths are less than 2 cm, each a fat little stem with three of four propeller-like leaves.  They grow from the top of the previous stem, however and ramble all over producing a mat of growths that soon covers a mount or spills over the edges of a pot.  The tiny, less than 1 cm, orange and yellow flowers are colored like candy corns and look like a little balloon that has exploded on one end.  The species is from Papua New Guinea and prefers cool temperatures and high humidity with good light.

Trisetella klingeri

I am not sure of the identification of this species  It was supposed to be Trisetella sororia, which it most definitely is not.  It may be Trisetella klingeri, from Ecuador, but it may also be just a form of the variable and widespread Trisetella triglochin.  The plant is tiny, like most Trisetellas, only about 3-4 cm tall, and the flowers, born on 6 cm spikes are about 1 cm in size.  By any name, however, it is a cute miniature, and worthy of a place in any collection of miniature orchids.