''Appendicula'', commonly known as stream orchids, is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Orchidaceae Orchids are plants that belong to the family (biology), family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Orchids are cosmopolitan distribution, cosmopolitan plants that ...

. Orchids in this genus are

epiphytic An epiphyte is a plant or plant-like organism that grows on the surface of another plant and derives its moisture and nutrients from the air, rain, water (in marine environments) or from debris accumulating around it. The plants on which epiphyt ...

lithophytic Lithophytes are plants that grow in or on rocks. They can be classified as either epilithic (or epipetric) or endolithic; epilithic lithophytes grow on the surfaces of rocks, while endolithic lithophytes grow in the crevices of rocks (and are also ...

or rarely

terrestrial plant A terrestrial plant is a plant that grows on, in or from land. Other types of plants are aquatic plant, aquatic (living in or on water), semiaquatic (living at edge or seasonally in water), epiphyte, epiphytic (living on other plants), and litho ...

herbs Herbs are a widely distributed and widespread group of plants, excluding vegetables, with savory or aromatic properties that are used for flavoring and garnish (food), garnishing food, for medicinal purposes, or for fragrances. Culinary use typi ...

with many flat, often twisted leaves and small resupinate, white or greenish flowers. The

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 Etymology The term ''sepalum'' ...

s are free from each other but the

lateral Lateral is a geometric term of location which may also refer to: Biology and healthcare * Lateral (anatomy), a term of location meaning "towards the side" * Lateral cricoarytenoid muscle, an intrinsic muscle of the larynx * Lateral release ( ...

sepals and labellum are fused to the base of the

column A column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. In other words, a column is a compression member ...

. The genus ''Appendicula'' was first formally described in 1825 by

Carl Ludwig Blume Charles Ludwig de Blume or Karl Ludwig von Blume (9 June 1796 – 3 February 1862) was a German-Dutch botanist and entomologist who spent most of his professional life in the Netherlands and the Dutch East Indies. As deputy director of agricul ...

who published the description in ''Bijdragen tot de flora van Nederlandsch Indië''. The name ''Appendicula'' is the diminutive form of the

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

word ''appendix'' meaning "appendage" or "addition", hence "little appendage", referring to the "inward-facing appendages on the labellum". Orchids in the genus ''Appendicula'' occur from

tropical The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's ax ...

and

subtropical The subtropical zones or subtropics are geographical zone, geographical and Köppen climate classification, climate zones immediately to the Northern Hemisphere, north and Southern Hemisphere, south of the tropics. Geographically part of the Ge ...

Asia to the western

Pacific The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is bounded by the cont ...

List of species

The following is a list of species of ''Appendicula'' accepted by the

Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ...

as at December 2024: * ''

Appendicula aberrans ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' Schltr. * ''

Appendicula adnata ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' J.J.Sm. * ''

Appendicula alatocaulis ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' P.O'Byrne & J.J.Verm. * ''

Appendicula alba ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' Blume * ''

Appendicula anceps ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the Family (biology), family Orchidaceae. Orchids in this genus are Epiphyte, epiphytic, Lithophyte, lithophytic or rarely terrestrial plants Herbaceous plant, h ...

'' Blume ** ''Appendicula anceps'' var. ''anceps''. ** ''Appendicula anceps'' var. ''celebica'' Schltr. * ''

Appendicula ancosiphila ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' Ormerod * ''

Appendicula anemophila ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' (Schltr.) J.J.Sm. * '' Appendicula angustifolia'' Blume * '' Appendicula annamensis'' Guillaumin * '' Appendicula anomala'' (Schltr.) Schltr. * '' Appendicula babiensis'' J.J.Sm. * '' Appendicula baliensis'' J.J.Sm. * '' Appendicula biloba'' J.J.Sm. ** ''Appendicula biloba'' var. ''angustifolia'' J.J.Sm. ** ''Appendicula biloba'' var. ''biloba''. * '' Appendicula bilobulata'' J.J.Wood * '' Appendicula biumbonata'' Schltr. * '' Appendicula bracteata'' (Schltr.) J.J.Sm. * '' Appendicula bracteosa'' Rchb.f. in B.Seemann * '' Appendicula brassii'' Ormerod * '' Appendicula brevimentum'' J.J.Sm. * ''

Appendicula buxifolia ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resup ...

'' Blume * '' Appendicula calcarata'' Ridl. * '' Appendicula calcicola'' Schltr. * '' Appendicula callifera'' J.J.Sm. * '' Appendicula carinifera'' Schltr. * '' Appendicula carnosa'' Blume * '' Appendicula celebica'' (Schltr.) Schltr. * '' Appendicula clemensiae'' (Ames) Ames * '' Appendicula clemensiorum'' J.J.Wood * '' Appendicula collina'' (Schltr.) J.J.Sm. * '' Appendicula concava'' Schltr. * '' Appendicula congenera'' Blume * '' Appendicula congesta'' Ridl. * ''

Appendicula cornuta ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' Blume * '' Appendicula crispa'' J.J.Sm. * '' Appendicula cristata'' Blume * '' Appendicula crotalina'' (Ames) Schltr. * '' Appendicula cuneata'' Ames * '' Appendicula cyphochiloides'' Ormerod * '' Appendicula dajakorum'' J.J.Sm. * '' Appendicula damusensis'' J.J.Sm. * '' Appendicula densifolia'' (Ridl.) Ridl. * '' Appendicula dichaeoides'' Ormerod * '' Appendicula disticha'' Ridl. * '' Appendicula djamuensis'' Schltr. * '' Appendicula effusa'' (Schltr.) Schltr. * '' Appendicula elegans'' Rchb.f. * ''

Appendicula elmeri ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' (Ames) Ames * '' Appendicula fallax'' Schltr. * '' Appendicula fasciculata'' J.J.Sm. * ''

Appendicula fenixii ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the Family (biology), family Orchidaceae. Orchids in this genus are Epiphyte, epiphytic, Lithophyte, lithophytic or rarely terrestrial plants Herbaceous plant, h ...

Appendicula merrillii ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' Ames * '' Appendicula mimica'' Ormerod * '' Appendicula montana'' (Schltr.) J.J.Sm. * '' Appendicula negrosiana'' (Ames) Ames * '' Appendicula nicobarica'' Jayanthi, Sumathi & Karthig. * '' Appendicula nivea'' (Schltr.) Schltr. * '' Appendicula oblonga'' Schltr. * '' Appendicula ovalis'' (Schltr.) J.J.Sm. ex Mansf. * '' Appendicula oxysepala'' (Schltr.) J.J.Sm. * '' Appendicula padangensis'' Schltr. * '' Appendicula pandurata'' (Schltr.) Schltr. * '' Appendicula parvifolia'' (Schltr.) J.J.Sm. * '' Appendicula patentissima'' J.J.Sm. * '' Appendicula pauciflora'' Blume * ''

Appendicula pendula ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' Blume * '' Appendicula penicillata'' Blume * ''

Appendicula perplexa ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' (Ames) Ames * '' Appendicula peyeriana'' Kraenzl. * '' Appendicula pilosa'' J.J.Sm. ** ''Appendicula pilosa'' var. ''pilosa''. ** ''Appendicula pilosa'' var. ''sumatrana'' J.J.Sm. * '' Appendicula podochiloides'' J.J.Sm.. * '' Appendicula polita'' J.J.Sm. * ''

Appendicula polyantha ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resu ...

'' Ames * '' Appendicula polyphylla'' Schltr. * '' Appendicula polystachya'' (Schltr.) Schltr. * '' Appendicula pseudofractiflexa'' J.J.Wood * '' Appendicula pseudopendula'' (Schltr.) Schltr. * '' Appendicula purpurascens'' Blume * '' Appendicula purpureifolia'' J.J.Sm. * '' Appendicula ramosa'' Blume * '' Appendicula recondita'' J.J.Sm. * '' Appendicula reflexa'' Blume ** ''Appendicula reflexa'' var. ''cycloglossa'' (Schltr.) Schltr. ** ''Appendicula reflexa'' var. ''kotoensis'' (Hayata) T.P.Lin ** ''Appendicula reflexa'' var. ''reflexa''. * '' Appendicula rivularis'' (Schltr.) J.J.Sm. * '' Appendicula rostellata'' J.J.Sm. * '' Appendicula rostrata'' J.J.Sm. * '' Appendicula rubens'' (Schltr.) Schltr. * '' Appendicula rupestris'' Ridl. * '' Appendicula salicifolia'' J.J.Sm. * '' Appendicula scissosaccus'' (Gilli) Ormerod * '' Appendicula sepikiana'' Schltr. * '' Appendicula seranica'' J.J.Sm. * '' Appendicula spathilabris'' J.J.Sm. * '' Appendicula steffensiana'' (Schltr.) J.J.Sm. * '' Appendicula tagalensium'' Kraenzl. * '' Appendicula tembuyukenensis'' J.J.Wood * '' Appendicula tenuifolia'' J.J.Wood ** ''Appendicula tenuifolia'' var. ''filiformis'' J.J.Wood ** ''Appendicula tenuifolia'' var. ''tenuifolia''. * '' Appendicula tenuispica'' (Schltr.) Schltr. * '' Appendicula theunissenii'' J.J.Sm. * '' Appendicula togarupia'' Ormerod * '' Appendicula topensabe'' Ormerod * '' Appendicula torricelliana'' Schltr. * '' Appendicula torta'' Blume * '' Appendicula triloba'' (Schltr.) Schltr. * '' Appendicula tubilabia'' J.J.Wood * '' Appendicula uncata'' Ridl. ** ''Appendicula uncata'' subsp. ''sarawakensis'' J.J.Wood ** ''Appendicula uncata'' subsp. ''uncata''. * '' Appendicula undulata'' Blume ** ''Appendicula uncata'' subsp. ''sarawakensis'' J.J.Wood ** ''Appendicula uncata'' subsp. ''uncata''. * '' Appendicula vanimoensis'' Ormerod * '' Appendicula verruculifera'' J.J.Sm. * '' Appendicula wariana'' (Schltr.) Ormerod * '' Appendicula weberi'' Ames * '' Appendicula werneri'' Schltr. * ''

Appendicula wibowojuswara ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytic, lithophytic or rarely terrestrial plants herbs with many flat, often twisted leaves and small resup ...

'' J.M.H.Shaw * ''

Appendicula xytriophora ''Appendicula'', commonly known as stream orchids, is a genus of flowering plants in the Family (biology), family Orchidaceae. Orchids in this genus are Epiphyte, epiphytic, Lithophyte, lithophytic or rarely terrestrial plants Herbaceous plant, h ...

'' Rchb.f

References

External links

* {{Taxonbar, from=Q133794 Podochileae genera Orchids of China Orchids of Thailand Orchids of Vietnam Orchids of Malaysia Orchids of the Philippines Orchids of Indonesia Orchids of New Guinea Orchids of Vanuatu Flora of the Southwestern Pacific Flora of the Caroline Islands Eriinae