Orchids Cattleya Citrina
You don't exactly live in a land of milk and honey, the epiphytic growing orchids, our Cattleya citrina is one of them. The scarce presence of nourishing substance at these lofty heights, far from fertile soil, but above all the fluctuating water supply during the day – or. In the course of the year, these rioters took self-help measures. In addition to special devices for protection against perspiration, many epiphytes have built a veritable storage chamber in the form of a bulbous axis swelling, their storage substances – especially water – serve them to maintain vital functions during the dry period. These above ground, a – or multi-link tubers, also called bulbs or pseudobulbs, outgrow a rhizome and, in addition to scale leaves, have a few leaves and flowers.
The 5 to 7 cm long, Bulbs of Cattleya citrina surrounded by dry white skins are always found on the underside of the branches, making the waxy, fragrant, bright yellow flowers droop invitingly. By the way, our Cattleya stops – together with Odontoglossum citrosmum – in the Mexican mountains 3300 m ü.M. the height record among the epiphytic orchids.
The shape and size of the bulbs can be quite different in the individual orchids. In addition to the size of a child's head, bulbs consisting of only one axis member (Peristeria elata) or. spindle-shaped, multi-link tubers almost one meter in length (Cyrtopodium) there are also tiny ones, only pinhead-sized nodules in Bulbophyllum minutis-simum. Klein, but clever – knows this dwarf bulbophyllum, whose green leaves you will look for in vain, to defy the risk of dehydration. Instead of distributing its stomata over a leaf surface like other plants, it cleverly holds them in the jug-shaped recess of its miniature – Bulben verborgen, Covering the already narrow exit with scale leaves and thus creating a windless space, in which the water vapor can collect.