Epidendrum (Dinema) Polybulbon Lindl. 1826 is a botanical species described by Lindley in 1826, frequently assigned to the genera Epidendrum or Encyclia, relatively recently assigned to the monospecific genus (with only one species) Dinema.

It belongs to the tribe Epidendreae, subtribe Laeliinae, and the genus name, Dinema, represents the contraction of the word di - two and nema - wire, resulting in bifilar , two wires , referring to the two relatively long, thin appendages found at the end of the column.

Accepted synonyms for Dinema Polybulbon are: Bulbophyllum Occidentale Spreng 1827; Dinema Cubincola (Borhidi) H. Dietr. 1980; Dynema Polybulbon [Sw.]Lindley 1831; Epidendrum Cubincola Borhidi 1976 publ. 1977; *Epidendrum Polybulbon Sw. 1788; Epidendrum Polybulbon var. luteo-album Miethe.

They are small, small plants that populate as epiphyte or lithophyte the relatively humid oak forests at high altitudes, of 600 - 3200 m, in Central America and the Caribbean archipelago - more precisely in Mexico, Guatemala, Cuba, Jamaica. The pseudobulbs are ovoid to narrowly ovoid, laterally compressed, yellowish green, bear 1-3 retouched leaves, inserted in the apical area, elliptic-lanceolate to elliptic-ovate.

Flowering takes place from autumn to early spring, on mature pseudobulbs, in the form of long-petioled (1.5 - 3 cm), apical monofloral inflorescences, on which large, fragrant flowers appear. The size of the flowers is approximately 3 cm, offering an impressive appearance, compared to the 6 - 7 cm of the pseudobulb (with leaves).

In cultivation, Epidendrum (Dinema) Polybulbon it prefers cool to moderately warm environments , with minimum values ​​of 15.5 °C in winter nights and maximum values ​​of 26.5 °C in summer days.

From the point of view of light radiation, it prefers diffused light , with values ​​of approximately 21500 Lx, although some authors suggest higher intensity levels. However, it should be borne in mind that the fragile leaves of this species can easily burn at higher values ​​of light intensity, a fact for which we recommend caution.

As for watering , you must first of all take into account the preferred method of planting. If the specimens will be mounted on plates of bark or cork, enough water will be administered to keep the culture medium wet. However, if mounting in a pot is preferred, less watering is recommended, ensuring that the substrate will only be moist. In both cases, frequent spraying and maintaining a radical level of atmospheric humidity reduce the accentuated evaporation of water from fragile roots and small pseudobulbs.

Fertilization , made at high dilutions, of 1 teaspoon per 4 liters, will be administered with each watering.

The recommended culture medium consists of fine-grained bark, sometimes mixed with various other media, such as dry fern. We also recommend coconut fiber, possibly mixed with peat (decomposed sphagnum moss) or even fresh or dry sphagnum. However, it will be necessary to carefully follow the watering, in order not to administer water in excess.

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