Oeceoclades decaryana is a terrestrial orchid species of the genus Oeceoclades that is native throughout southern and southeastern Africa. It can be found growing in Kenya, Mozambique, Zimbabwe, Madagascar, and KwaZulu-Natal in South Africa. It was first described by the French botanist Joseph Marie Henry Alfred Perrier de la Bâthie in 1935 as a species in the genus Eulophia. He later transferred this species to the genus Lissochilus in 1941, followed by another transfer to the genus Eulophidium in 1957 by the English botanist V.S. Summerhayes in 1957. When Leslie Andrew Garay and Peter Taylor revised the genus Oeceoclades in 1976, they transferred this species to the expanded Oeceoclades.
The term grex, derived from the Latin noun grex, gregis meaning 'flock', has been coined to expand botanical nomenclature to describe hybrids of orchids, based solely on their parentage. Grex names are one of the three categories of plant names governed by the International Code of Nomenclature for Cultivated Plants; within a grex the cultivar group category can be used to refer to plants by their shared characteristics, and individual orchid plants can be selected and named as cultivars.
Eulophila pulchra, commonly known as the gonzo orchid, is a plant in the orchid family and is native to areas from Tanzania and Mozambique to the Western Pacific Ocean. It is a terrestrial orchid with crowded, above-ground pseudobulbs, two or three leaves and pale yellowish green flowers with dull purple or red markings. It grows in plant litter in rainforests.
Oeceoclades maculata, sometimes known as the monk orchid or African spotted orchid, is a terrestrial orchid species in the genus Oeceoclades that is native to tropical Africa and now naturalized in South and Central America, the Caribbean, and Florida in North America. It was first described by the English botanist John Lindley as Angraecum maculatum in 1821 based on a specimen collected from South America. Lindley later revised his original placement and moved the species to the genus Oeceoclades in 1833.
Oeceoclades gracillima, sometimes known in horticulture by the synonym Oeceoclades roseovariegata, is a terrestrial orchid species in the genus Oeceoclades that is endemic to Madagascar. It was first described by the German botanist Rudolf Schlechter under the illegitimate name Eulophia gracillima in 1913. Schlecter later validly republished the species under the name Eulophidium gracillimum in 1925. It was then moved to the genus Oeceoclades by Leslie Andrew Garay and Peter Taylor in 1976.
Oeceoclades calcarata is a terrestrial orchid species in the genus Oeceoclades that is endemic to Madagascar. It was first described by the British botanist Robert Allen Rolfe in 1905 as Eulophia paniculata. The German botanist Rudolf Schlechter later described this species as Cymbidium calcaratum in 1915 and then transferred his own taxon to the genus Eulophia in 1925. When Leslie Andrew Garay and Peter Taylor revised the genus Oeceoclades in 1976, they transferred this species to the expanded Oeceoclades as O. calcarata because even though Eulophia paniculata was the older name and thus had priority, there had already been an earlier species named Oeceoclades paniculata that prevented using that specific epithet.
Oeceoclades ambongensis is a terrestrial orchid species in the genus Oeceoclades that is endemic to Madagascar. It was first described by the German botanist Rudolf Schlechter in 1913 as Eulophidium ambongense. When Leslie Andrew Garay and Peter Taylor revised the genus Oeceoclades in 1976, they transferred this species to the expanded Oeceoclades as O. ambongensis. Garay and Taylor noted that this species could be distinguished from closely allied species, such as O. maculata by its larger flowers with subglobose spur and a bilobed callus on the labellum.
Oeceoclades lanceata is a terrestrial orchid species in the genus Oeceoclades that is endemic to central Madagascar. The flowers are rose-colored. It was first described by the French botanist Joseph Marie Henry Alfred Perrier de la Bâthie in 1935 as Eulophia lanceata. Perrier then later reduced the species to a synonym of Eulophia pandurata. The species was resurrected and transferred to the genus Oeceoclades in 1976 by Leslie Andrew Garay and Peter Taylor, who argued that O. lanceata and O. pandurata are distinct with regard to their floral structure and shape of the labellum. Garay and Taylor noted that O. lanceata is similar in vegetative morphology to O. seychellarum.
Oeceoclades lubbersiana is a terrestrial orchid species in the genus Oeceoclades that is native to the Democratic Republic of the Congo and Uganda. It was first described by the Belgian botanists Émile Auguste Joseph De Wildeman and Émile Laurent in 1899 as Eulophia lubbersiana, then moved to the genus Eulophidium by V.S. Summerhayes in 1957 and again transferred to the genus Oeceoclades in 1976 by Leslie Andrew Garay and Peter Taylor. Garay and Taylor noted that this species is similar to O. atrovirens in vegetative morphology, but is better allied to O. latifolia and O. pandurata because all three possess a labellum that is wider than it is long. Oeceoclades lubbersiana was named in honor of Louis Lubbers, who was a botanist working at the Botanical Garden of Brussels.
Oeceoclades seychellarum is a terrestrial orchid species in the genus Oeceoclades that was endemic to the island of Mahé in the Seychelles but is now considered to be extinct. Its sepals and petals are yellowish-white, while the labellum is white with some streaks. This species is only represented by the type specimen, collected in May 1902 from the Cascade Estate on the island of Mahé at an elevation of 900 feet (270 m) in what was then a mountain forest. The location from which the type specimen was collected is now degraded by human activity and invasive plants. Oeceoclades seychellarum was listed as being cultivated at the Royal Botanic Gardens, Kew in 1905, but not after that date.
Oeceoclades pandurata is a terrestrial and epiphytic orchid species in the genus Oeceoclades that is native to eastern Zimbabwe and Madagascar. It was first described by the British botanist Robert Allen Rolfe in 1891 as Eulophia pandurata, then moved to the genus Lissochilus by Joseph Marie Henry Alfred Perrier de la Bâthie in 1941, and again moved to the genus Eulophidium by V.S. Summerhayes in 1957. It was finally transferred to the genus Oeceoclades in 1976 by Leslie Andrew Garay and Peter Taylor. Garay and Taylor noted that this species possesses lateral veins on the labellum that fringed with small hairs. Oeceoclades pandurata is distinguishable from other species in the genus by the lateral lobes of the labellum, which are free and truncate. The type specimen was collected on trees near Fort Dauphin on Madagascar, now known as the city of Tôlanaro. The specific epithet pandurata refers to the fiddle-shaped labellum.
Oeceoclades perrieri is a terrestrial orchid species in the genus Oeceoclades that is native to Mozambique and northwestern Madagascar. It was first described by the German botanist Rudolf Schlechter in 1913 as Eulophia ambongensis. Schlechter had also described a separate species, Eulophidium ambongense in the same 1913 work. When Leslie Andrew Garay and Peter Taylor resurrected and revised the genus Oeceoclades in 1976, these two taxa caused a naming conflict, so they chose to use Eulophidium ambongense as the basionym for O. ambongensis and reduced Eulophia ambongensis to a synonym of O. perrieri, which was based on the basionym Eulophidium perrieri that Schlechter had also described later in 1925. Both Eulophidium perrieri and Eulophia ambongensis were conspecific, belonging to the same species, so Garay and Taylor were free to use the later name as the base for their new combination when transferring taxa to Oeceoclades. Garay and Taylor noted that this species is related to O. quadriloba, O. sclerophylla, and O. analavelensis but can be distinguished from them by its characteristic long strap-like leaves that taper to a point.
Oeceoclades petiolata is a terrestrial orchid species in the genus Oeceoclades that is endemic to northern and western Madagascar. It was first described by the German botanist Rudolf Schlechter in 1913 as Eulophia petiolata. Schlechter later moved this species to the genus Eulophidium in 1925. It was again moved to the genus Lissochilus by the French botanist Joseph Marie Henry Alfred Perrier de la Bâthie in 1941 and last transferred the genus Oeceoclades in 1976 by Leslie Andrew Garay and Peter Taylor. Garay and Taylor noted that this species is almost identical to O. alismatophylla in vegetative morphology, but the two differ in the shape of the labellum on the flower. The labellum is fiddle-shaped and has three thickened veins in front of the calli.
Oeceoclades quadriloba is a terrestrial orchid species in the genus Oeceoclades that is native to Swaziland, southern Zimbabwe, and western Madagascar. It was first described by the German botanist Rudolf Schlechter in 1913 as Eulophia quadriloba. Schlechter later moved this species to the genus Eulophidium in 1925. It was again moved to the genus Lissochilus by the French botanist Joseph Marie Henry Alfred Perrier de la Bâthie in 1941 and last transferred the genus Oeceoclades in 1976 by Leslie Andrew Garay and Peter Taylor. Garay and Taylor noted that structure of the labellum is unique in the genus and resembles that of an Asian genus of orchids, Grosourdya. The spur is longer than the midlobe of the labellum.
Oeceoclades rauhii is a terrestrial orchid species in the genus Oeceoclades that is endemic to northern Madagascar. It was first described by the German botanist Karlheinz Senghas in 1973 as Eulophidium rauhii and then transferred to the genus Oeceoclades in 1976 by Leslie Andrew Garay and Peter Taylor. It was named in honor of Werner Rauh who, along with Karlheinz, collected the type specimen from just south of Anivorano Nord. Garay and Taylor noted that O. rauhii is closely related to O. boinensis, but it has a labellum with four lobes of equal size and linear-lanceolate sepals and petals.
Oeceoclades sclerophylla is a terrestrial orchid species in the genus Oeceoclades that is native to Comoros and southeastern Madagascar. It was first described by the German botanist Heinrich Gustav Reichenbach in 1885 as Eulophia sclerophylla. It was later transferred to the genus Oeceoclades in 1976 by Leslie Andrew Garay and Peter Taylor. Oeceoclades sclerophylla has long, linear leaves, a feature that is shared with O. analavelensis and O. quadriloba, but it differs from these species in the proportions of the size of labellum lobes.
Oeceoclades antsingyensis is a terrestrial orchid species in the genus Oeceoclades that is endemic to western Madagascar. It was first described by Günter Gerlach in 1995. The type specimen was collected approximately 13 km (8.1 mi) west of Antsalova.
Oeceoclades lavergneae is a terrestrial orchid species in the genus Oeceoclades that is endemic to Réunion in the Indian Ocean. It was first described by French orchid enthusiast and collector Jean-Bernard Castillon in 2012. The type specimen was collected from the forests on the western cliffs of the island along the Rivière des Galets at about 700 m (2,297 ft) elevation.
Oeceoclades versicolor is a terrestrial orchid species in the genus Oeceoclades that is endemic to Réunion in the Indian Ocean. In 1880, the French botanist Charles Frappier published a list of 145 orchids that grew on the island of Réunion, but Frappier died before he could complete his studies and formally describe all of the species. Frappier's work was continued by Eugène Jacob de Cordemoy and in his 1895 work "Flore de l'île de La Réunion", he described Eulophia versicolor and attributed the name to Frappier, although the name did not appear on the 1880 list of Réunion's orchids.
