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Leptotes (orchid)
''Leptotes'', abbreviated Lpt in horticultural trade, is a genus of orchids formed by nine small species that grow in the dry jungles of south and southeast Brazil, and also in Paraguay or Argentina. They are small epiphytic plants of caespitous growth that sometimes resemble little ''Brassavola'', as they share the same type of thin terete leaves, though they are more closely related to ''Loefgrenianthus''.
Some species of ''Leptotes'' are widely cultivated and form showy displays when completely in bloom although they are not among the easiest to grow. The majority of the species are not cultivated and some are so rare to be almost unknown; five of the nine species have been described since 2000. Besides being cultivated for their ornamental value, there are records of the flowers and fruits of ''Leptotes bicolor'' being used as a substitute for vanilla in milk, ice cream, tea and candies.〔Lawler, L.J.: ''Ethnobotany of the Orchidaceae'' in Orchid biology: reviews and perspectives, Vol.3. J. Arditti Ed., Cornell University Press, Ithaca, New York, 1984.〕
==Distribution==
The species of ''Leptotes'' were originally discovered in the Atlantic Forest of Brazil and are always seen living epiphytically. Two species have since been found in other countries, ''L. unicolor'' in Argentina, and ''L. bicolor'' in Paraguay. Three species show a high degree of endemism in the south of Bahia State. The states of southeastern Brazil can be considered the center of its distribution since they host the highest number of species and the ''Leptotes'' are most abundant there, however, the range is from the Serra da Jibóia chain of mountains, in Bahia, to the North of Rio Grande do Sul state.〔Van den Berg, Cássio: ''Leptotes'' in Genera Orchidacearum Vol.4, pp. 271-3. Oxford University Press, 2006. ISBN 978-0-19-850712-3.〕
The species in the group that are characterized by wide open flowers, such as ''Leptotes tenuis'' and ''L. pauloensis'', are more frequently found in montane cloud forests. ''L. bicolor'' has the broadest range and can survive in both the cloud forests and the dryer woods on the plateaus of the Serra do Mar chain of mountains. ''Leptotes unicolor'' grows optimally in cooler areas, above 700 meters of altitude, and is frequently found growing on ''Araucaria'' and ''Podocarpus'' trees in the southern areas of Brazil.〔
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