Voyria
Encyclopedia
Voyria is a genus of nineteen species of herbaceous
perennial plant
s, belonging to the family Gentianaceae
. They are mostly native to warm temperate and tropical regions of Central America
and South America
with one species occurring in the Everglades
of Florida
.
Unlike most plants, they do not contain chlorophyll
; they are myco-heterotrophs, getting their food through parasitism
upon fungi rather than photosynthesis
. Their roots are thick and densely clustered forming a "birds nest" that house their fungus host. The flowers can be single or held in corymbs of many individual flowers depending on species. The stems are usually pallid in colour with reduced scale-like foliage though the flowers can vary in colour with white or yellow predominating but blue and pink also occurring. Like all myco-heterotrophs they are capable of living in very dark conditions, such as the floor of deep forest
s, because they no longer derive energy from sunlight.
Species
Herbaceous
A herbaceous plant is a plant that has leaves and stems that die down at the end of the growing season to the soil level. They have no persistent woody stem above ground...
perennial plant
Perennial plant
A perennial plant or simply perennial is a plant that lives for more than two years. The term is often used to differentiate a plant from shorter lived annuals and biennials. The term is sometimes misused by commercial gardeners or horticulturalists to describe only herbaceous perennials...
s, belonging to the family Gentianaceae
Gentianaceae
Gentianaceae are a family of flowering plants of 87 genera and over 1500 species. Flowers are actinomorphic and bisexual with fused sepals and petals. The stamens are attached to the inside of the petals and alternate with the corolla lobes. There is a glandular disk at the base of the gynoecium,...
. They are mostly native to warm temperate and tropical regions of Central America
Central America
Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...
and South America
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...
with one species occurring in the Everglades
Everglades
The Everglades are subtropical wetlands in the southern portion of the U.S. state of Florida, comprising the southern half of a large watershed. The system begins near Orlando with the Kissimmee River, which discharges into the vast but shallow Lake Okeechobee...
of Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...
.
Unlike most plants, they do not contain chlorophyll
Chlorophyll
Chlorophyll is a green pigment found in almost all plants, algae, and cyanobacteria. Its name is derived from the Greek words χλωρος, chloros and φύλλον, phyllon . Chlorophyll is an extremely important biomolecule, critical in photosynthesis, which allows plants to obtain energy from light...
; they are myco-heterotrophs, getting their food through parasitism
Parasitism
Parasitism is a type of symbiotic relationship between organisms of different species where one organism, the parasite, benefits at the expense of the other, the host. Traditionally parasite referred to organisms with lifestages that needed more than one host . These are now called macroparasites...
upon fungi rather than photosynthesis
Photosynthesis
Photosynthesis is a chemical process that converts carbon dioxide into organic compounds, especially sugars, using the energy from sunlight. Photosynthesis occurs in plants, algae, and many species of bacteria, but not in archaea. Photosynthetic organisms are called photoautotrophs, since they can...
. Their roots are thick and densely clustered forming a "birds nest" that house their fungus host. The flowers can be single or held in corymbs of many individual flowers depending on species. The stems are usually pallid in colour with reduced scale-like foliage though the flowers can vary in colour with white or yellow predominating but blue and pink also occurring. Like all myco-heterotrophs they are capable of living in very dark conditions, such as the floor of deep forest
Forest
A forest, also referred to as a wood or the woods, is an area with a high density of trees. As with cities, depending where you are in the world, what is considered a forest may vary significantly in size and have various classification according to how and what of the forest is composed...
s, because they no longer derive energy from sunlight.
Species
- Voyria aphylla
- Voyria caerulea
- Voyria clavata
- Voyria corymbosa
- Voyria parasitica
- Voyria parviflora
- Voyria rosea
- Voyria spruceana
- Voyria tenella
- Voyria tenuiflora
- Voyria truncata