Pleurothallis

Pleurothallis
Pleurothallis epiglottis
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Epidendreae
Subtribe: Pleurothallidinae
Genus: Pleurothallis
R.Br., 1813
Synonyms
  • Acronia C.Presl
  • Ancipitia (Luer) Luer
  • Atopoglossum Luer
  • Centranthera Scheidw.
  • Colombiana Ospina
  • Lalexia Luer
  • Lindleyalis Luer
  • Loddigesia Luer
  • Mirandopsis Szlach. & Marg.
  • Mixis Luer
  • Orbis Luer
  • Pleurobotryum Barb.Rodr.
  • Proctoria Luer
  • Rhynchopera Klotzsch
  • Talpinaria H.Karst.
  • Tigivesta Luer
  • Vestigium Luer
  • Zosterophyllanthos Szlach. & Marg.

Pleurothallis is a genus of orchids commonly called bonnet orchids. The genus name is derived from the Greek word pleurothallos, meaning "riblike branches". This refers to the rib-like stems of many species. The genus is often abbreviated as "Pths" in horticultural trade.

This was a huge genus, which contained more than 1,200 species - the second largest in the Orchidaceae after Bulbophyllum. In 2004, it decreased by more than half when many species were moved into new genera.