View source for Trigonidium

{{SPlantbox
|familia=Orchidaceae
|genus=Trigonidium
|habit=orchid
|lifespan=perennial
|Temp Metric=°F
|jumpin=If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!
|image=Trigonidium acuminatum - fl 2.jpg
|image_width=180
|image_caption=''Trigonidium acuminatum''
}}
'''''Trigonidium''''', abbreviated as '''Trgdm''' in [[Horticulture|horticultural]] trade, is a [[genus]] of [[orchid]]s comprising of more than 20 species found from [[Mexico]] to [[Brazil]].

{{Inc|
Trigonidium (Greek, three and small angle, alluding to the triangular form of several parts of the plant). Orchidaceae. Epiphytic herbs, grown in the warmhouse.

Stems very short, soon thickened into fleshy 1-2- lvd. pseudobulbs: lvs. leathery, not folded, linear or oblong: scape from below the pseudobulb or from a simple rhizome, many-sheathed, 1-fld.: fls. rather large, short-pedicelled, between spathe-like bracts; sepals about equal, connivent or coherent into a 3-angled tube at base; petals much smaller than sepals; lip erect, lateral lobes clasping the column, midlobe spreading, fleshy or callous at base; column without wings and footless; pollinia 4.—About 10 species, Trop. Cent. and S. Amer.

The following species are sometimes found in cult.: T. acuminatum, Batem. Pseudobulbs ovate, acute, sulcate: lf. linear: fl. dull straw-color, penciled with rich brown inside, sepals acuminate recurved at apex; petals oval-lanceolate. British Guiana.—T. Egertonianum, Batem. Pseudobulbs clustered, oval, compressed, 2-lvd.: lvs. narrow ensiform, often 1 1/2 ft. long: fl. pale liver-color, dashed and veined with brown; sepals acute, the lateral ones reflexed; petals slightly acute. Honduras.—T. latifolium, Lindl. Lvs. obovate-oblong, 6x2 in.: fls. yellow and purple; lip with a fleshy yellow front lobe and narrow purplish side ones.—T. obtusum, Lindl. Pseudobulb oblong or elongate obovoid, 2-lvd., compressed: lvs. linear-lanceolate: fl. terminal; sepals reddish yellow, obovate; petals white, veined with rose, brown at the apex, obtuse; lip white, dorsally tubercled, lateral lobes red-margined, midlobe yellow in front. British Guiana. B.R. 1923.—T. tenue, Lodd. Pseudobulbs oval, compressed, 1-lvd.: lf. ensiform, very acute: fl. brownish purple; sepals reflexed, very acuminate; lip obtuse, glabrous, reflexed at apex. British Guiana.
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==Cultivation==
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===Propagation===
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===Pests and diseases===
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==Species==
*''[[Trigonidium acuminatum]]''
*''[[Trigonidium amparoanum]]''
*''[[Trigonidium aurorae]]''
*''[[Trigonidium callistele]]''
*''[[Trigonidium christensonii]]''
*''[[Trigonidium egertonianum]]''
*''[[Trigonidium equitans]]''
*''[[Trigonidium grande]]''
*''[[Trigonidium lankesteri]]''
*''[[Trigonidium loretoense]]''
*''[[Trigonidium macranthum]]''
*''[[Trigonidium monophyllum]]''
*''[[Trigonidium obtusum]]''
*''[[Trigonidium peruvianum]]''
*''[[Trigonidium ringens]]''
*''[[Trigonidium riopalenquense]]''
*''[[Trigonidium seemannii]]''
*''[[Trigonidium spatulatum]]''
*''[[Trigonidium subrepens]]''
*''[[Trigonidium tenue]]''
*''[[Trigonidium turbinatum]]''

==Gallery==
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==References==
*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963
<!--- xxxxx  *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381  -->
<!--- xxxxx  *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432  -->
<!--- xxxxx  *Sunset National Garden Book. Sunset Books, Inc., 1997. ISBN 0376038608  -->

==External links==
*{{wplink}}

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