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Rib structures in cells of the velamen

Legend:

1  velamen
2  wall thickening

English name: Orchid
Scientific name: Oncidium sp.
Familia: Orchidaceae
Classis: Monocotyledonas
Phylum: Angiospermae
Regnum: Plantae

The velamen is the multilayered epidermis of the aerial root of orchids. The thickened walls restrains desiccation.


last modified: 5 Jun 2014