Cymbidieae Pfitzer, Entw. Nat. Anord. Orch. (1887) 105, as Cymbidiinae. Type species Cymbidium Sw.
Synonyms:
Epiphytes, terrestrials or lithophytes, usually sympodial or, less often monopodial, herbaceous, rarely leafless heteromycotrophic terrestrials. Roots glabrous. Rhizome creeping. Stems erect, simple, flexible to stiff, terete to laterally compressed, not swollen or a swollen pseudobulb, with 1- to several-nodes. Leaves 1 to several, rarely absent or reduced to scale leaves, plicate or conduplicate, often distichous , alternate, stiffly herbaceous to hard-coriaceous, blade dorsoventrally flattened, rarely bilaterally flattened or semi-terete, articulate or not, linear, lanceolate, ovate, obovate or elliptic; leaf sheath present or absent, rarely tubular, clasping the stem, imbricate. Inflorescence basal, lateral or rarely subapical, racemose or paniculate; floral bracts often imbricate, sometimes alternating in 2 rows, usually persistent. Flowers 1 to many, usually resupinate, opening in succession or simultaneously, sometimes gregarious, long-lived to ephemeral, bisexual or unisexual (Catasetinae), bilaterally symmetrical or asymmetric (Mormodes, some Rodriguezia). Sepals free, thin textured to fleshy; lateral sepals asymmetric, keeled or not. Petals free, elliptic or oblong to linear-lanceolate or lanceolate, asymmetric, usually thinner than the sepals. Lip immobile or hinged to the column or column foot, not lobed, 3 lobed or 2- or 3-partite, rarely twisted (Mormodes, some Rodriguezia), usually without a spur, sometimes with a short spur or saccate; lateral lobes in front pronounced; in Coryanthes hypochile with 2 nectariferous glands, mesochile tubular and sometimes fluted, and epichile bucket-shaped; when present, callus ligulate, more pronounced at the top, composed of ridges, keels or hairs. Column curved, rarely twisted (Mormodes), sometimes with wing like lateral auricles or wings, rarely with basal sensitive antennae (Catasetum); anther cap hinged at the base; pollinia 2, equal, or 4, usually unequal, flat, lanceolate-ovoid to triangular-ovoid; stipes (tegula) usually 1, rarely 2, sometimes elastic; viscidium present; stigma cup-shaped; rostellum 1- 3-lobed. Fruit with 6 longitudinal ribs, perianth persistent.
(after Cribb 2009)
Tribe Cymbidieae contains 11 Subtribes, predominantly tropical American but also in the Old World tropics and subtropics; in New Guinea 3 subtribes.
Tribe Cymbidieae in New Guinea contains 2 Subtribes:
Cymbidiinae
Eulophiinae
ARTIFICIAL KEY TO THE SUBTRIBES OF THE TRIBE CYMBIDIEAE IN NEW GUINEA
1a. Plants heteromycotrophic, without chlorophyll == 2
1b. Plants autotrophic, with chlorophyll == 3
2a. Lip without spur; midlobe median hairy == Cymbidiinae (Dipodium)
2b. Lip with a spur; midlobe median not hairy == Eulophiinae (Eulophia)
3a. Plants scandent; stem or rhizome climbing == Cymbidiinae (Claderia, Dipodium)
3b. Plants not scandent; stem or rhizome climbing == 4
4a. Plants usually terrestrial, cormous, rhizomatous or pseudobulbous. Lip often spurred or saccate at base == Eulophiinae
4b. Plants usually epiphyric or lithophytic, pseudobulbous, rarely without a pseudobulb; pseudobulbs of 1 or more internodes. Lip usually not spurred at base == Cymbidiinae
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