The pseudobulb is a storage organ derived from the part of a stem between two leaf nodes.
It applies to the orchid family (Orchidaceae), specifically certain groups of epiphytic orchids, and may be single or composed of several internodes with evergreen or deciduous leaves along its length.
In some species, it is hardly swollen at all and looks like a normal stem with many leaves while at the other extreme, some genera such as Bulbophyllum have single, spherical pseudobulbs with one leaf at the apex of each.
Whether cane-like (with many joints) or spherical (with one or few joints), they are all produced from a long lived creeping stem called a rhizome which may itself be climbing or pendulous.
The pseudobulbs are themselves relatively short lived (1-5 years), but are continually produced from the growing tip of the rhizome.
An old, sometimes leafless, sympodial pseudobulb that is still alive and may be used to propagate a new plant.
The method of seed propagation of an orchid wherein the pollen of one orchid is placed on the stigma of another orchid which was originally grown in the same seedpod as the first orchid, therefore a cross-pollination of siblings.
Feeds |
Contact