Definition

Noun: 1. A large genus of orchids: Genus Masdevallia is a taxonomic classification for a large group of primarily tropical American orchids. Most species in this genus are epiphytes, meaning they grow on other plants for physical support. 2. Distinctive floral structure: A key defining characteristic is the structure of their flowers. The sepals (the outer parts of the flower) are fused together at their base, forming a distinct tube or sheath.

Usage Notes

• This is a scientific, botanical term used in taxonomy and horticulture.
• It is always capitalized when referring to the formal genus name: .
• In common usage, the word "Masdevallia" alone is often used to refer to these orchids.

Examples

• Scientific Context:
  • The botanist specialized in the study of genus Masdevallia.
  • Several species formerly classified under genus Masdevallia have been reclassified into other genera.
• Horticultural Context:
  • This Masdevallia requires cool, humid conditions to thrive.
  • The collector has a greenhouse dedicated to genus Masdevallia and its relatives.

Advanced Usage / Taxonomic Note

• The definition notes that this genus historically included orchids now sometimes placed in other genera like , , and . This illustrates the dynamic nature of plant taxonomy, where classifications are revised as new research emerges. Therefore, the precise boundaries of can be subject to scientific debate.

Variants and Related Words

• Masdevallia (n): The common shorthand name for any orchid within the genus .
  • She grows several beautiful Masdevallias.
• Epiphyte (n): A plant that grows non-parasitically on another plant. This describes the growth habit of most orchids.
• Sepal (n): A part of the flower, typically green and leaf-like, that protects the bud. In , the sepals are often the most colorful and prominent part of the flower.

Synonyms

• (There are no direct common-language synonyms for this precise scientific genus name. In informal gardening contexts, "Masdevallia" or "Masdevallia orchid" is used.)

Related Terms / Broader Categories

• Orchidaceae: The orchid family, to which belongs.
• Genus: The taxonomic rank above species and below family.
• Taxonomy: The science of classification, which includes naming and grouping organisms like those in .

Noun

1. large genus of tropical American mostly epiphytic orchids whose flowers have sepals fused at the base forming a tube; includes orchids sometimes placed in genera Dracula and Dryadella and Scaphosepalum