''Cattleya labiata'', also known as the crimson cattleya or ruby-lipped cattleya, is the type species of ''
Cattleya
''Cattleya'' () is a genus of orchids from Costa Rica south to Argentina. The genus is abbreviated C in trade journals.
Description
Epiphytic or terrestrial orchids with cylindrical rhizome from which the fleshy noodle-like roots grow. Ps ...
'', discovered in 1818 in Brazil.
This plant grows in the northeastern area of Brazil, in the states of
Pernambuco
Pernambuco () is a States of Brazil, state of Brazil, located in the Northeast Region, Brazil, Northeast region of the country. With an estimated population of 9.6 million people as of 2020, making it List of Brazilian states by population, sev ...
and
Alagoas
Alagoas (, ) is one of the 27 federative units of Brazil and is situated in the eastern part of the Northeast Region. It borders: Pernambuco (N and NW); Sergipe (S); Bahia (SW); and the Atlantic Ocean (E). Its capital is the city of Maceió. ...
. They grow to different sizes depending on the area from which they originate. Those that are growing in Pernambuco are smaller, with small but colored flowers, with most of them being lilac. The interior part of the flower is a dark lilac color. Plants from Alagoas are bigger and have larger flowers. Some varieties, such as ''Cattleya labiata'' var. semialba, have large white flowers with a touch of yellow. There is another variety of semialba, with lilac in the inferior part of the flower. This plant is an
epiphyte, growing up in trees, where light is plentiful. However, there are also many other places where this plant could grow, such as directly on rock with very little soil.
The plant itself is a medium-sized unifoliate (labiate) ''Cattleya'', with a medium-sized
rhizome. The plant has long leaves, with a tough (
coriaceous
This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary o ...
) consistency because of the aridity in the canopy of trees, due to a short dry season. For water requirements, the plant has a
pseudobulb
The pseudobulb is a storage organ found in many epiphytic and terrestrial sympodial orchids. It is derived from a thickening of the part of a stem between leaf nodes and may be composed of just one internode or several, termed heteroblastic and ...
under every leaf to store water and nutritive substances during the short dry season. In the wet season new leaves grow rapidly, producing a large flowered inflorescence. Flowers are white or lavender colored with a darker spot in the
lip
The lips are the visible body part at the mouth of many animals, including humans. Lips are soft, movable, and serve as the opening for food intake and in the articulation of sound and speech. Human lips are a tactile sensory organ, and can be ...
.
Pollination
Pollination is the transfer of pollen from an anther of a plant to the stigma of a plant, later enabling fertilisation and the production of seeds, most often by an animal or by wind. Pollinating agents can be animals such as insects, birds, a ...
is performed by insects, usually by a scent-collecting male
euglossine bee. The result is a capsule with a very large number of seeds (10,000-20,000).
The
diploid chromosome
A chromosome is a long DNA molecule with part or all of the genetic material of an organism. In most chromosomes the very long thin DNA fibers are coated with packaging proteins; in eukaryotic cells the most important of these proteins are ...
number of ''C. labiata'' has been variously determined as 2''n'' = 40, 41, and 46. The
haploid chromosome number
Ploidy () is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes. Sets of chromosomes refer to the number of maternal and paternal chromosome copies, respectivel ...
of ''C. labiata'' has been variously determined as ''n'' = 21 and 21.
[page 251 of L. P. Felix and M. Guerra: "Variation in chromosome number and the basic number of subfamily Epidendroideae (Orchidaceae)" ''Botanical Journal of the Linnean Society'' 163(2010)234—278. The Linnean Society of London. Downloaded October 2010 from http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8339.2010.01059.x/abstract]
References
External links
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labiata
Epiphytic orchids
Endemic orchids of Brazil
Orchids of Pernambuco
Flora of Alagoas
Flora of the Atlantic Forest
labiata