長萼蘭屬（_Brassia_）是蘭科蕙蘭族的一個屬，原產於中美洲、南美洲北部和西印度群島，_B. caudata_ 也見於佛羅里達。

該屬的學名來自英國植物學家威廉・布拉斯（William Brass）的姓，在園藝貿易中常縮寫為「Brs」。其被片狹長，形似蜘蛛，因此在歐美國家又稱「蜘蛛蘭」（spider orchid），在台灣該屬也譯為蜘蛛蘭屬，但這並非中國植物誌上的蜘蛛蘭屬（_Arachnis_）。



下屬物種

本屬包括以下物種：


* _Brassia allenae_ L.O.Williams ex C.Schweinf.

* _Brassia allenii_ L.O.Williams ex C.Schweinf.

* _Brassia andina_ (Rchb.f.) M.W.Chase

* _Brassia andreettae_ (Dodson) Senghas

* _Brassia angusta_ Lindl.

* _Brassia angustilabia_ Schltr.

* _Brassia arachnoidea_ Barb.Rodr.

* _Brassia arcuigera_ Rchb.f.

* _Brassia aurantiaca_ (Lindl.) M.W.Chase

* _Brassia aurorae_ D.E.Benn.

* _Brassia bennettiorum_ (Dodson) Senghas

* _Brassia bidens_ Lindl.

* _Brassia bowmanni_ (Rchb.f.) M.W.Chase

* _Brassia brachypus_ Rchb.f.

* _Brassia brevis_ (Kraenzl.) M.W.Chase

* _Brassia brunnea_ Archila

* _Brassia caudata_ (L.) Lindl.

* _Brassia cauliformis_ C.Schweinf.

* _Brassia chloroleuca_ Barb.Rodr.

* _Brassia chlorops_ Endrés & Rchb.f.

* _Brassia cochlearis_ (H.R.Sweet) M.W.Chase

* _Brassia cochleata_ Knowles & Westc.

* _Brassia coryandra_ C.Morren

* _Brassia cyrtopetala_ Schltr.

* _Brassia diphylla_ (H.R.Sweet) M.W.Chase

* _Brassia dresslerorum_ Archila

* _Brassia ecuadorensis_ (Garay) M.W.Chase

* _Brassia endresii_ (Kraenzl.)

* _Brassia escobariana_ Garay

* _Brassia euodes_ Rchb.f.

* _Brassia farinifera_ Linden & Rchb.f.

* _Brassia filomenoi_ Schltr.

* _Brassia forgetiana_ Sander

* _Brassia garayana_ M.W.Chase

* _Brassia gireoudiana_ Rchb.f. & Warsz.

* _Brassia glumacea_ Lindl.

* _Brassia glumaceoides_ M.W.Chase

* _Brassia horichii_ (I.Bock) M.W.Chase

* _Brassia huebneri_ Schltr.

* _Brassia iguapoana_ Schltr.

* _Brassia incantans_ (Rchb.f.) M.W.Chase

* _Brassia jipijapensis_ Dodson & N.H.Williams

* _Brassia keiliana_ Rchb.f. ex Lindl.

* _Brassia koehlerorum_ Schltr.

* _Brassia lanceama_

* _Brassia lanceana_ Lindl.

* _Brassia lehmannii_ (Garay) M.W.Chase

* _Brassia leursii_ Rolfe

* _Brassia macrostachya_ Lindl.

* _Brassia maculata_ R.Br.

* _Brassia mendozae_ (Dodson) Senghas

* _Brassia minutiflora_ (Kraenzl.) M.W.Chase

* _Brassia neglecta_ Rchb.f.

* _Brassia ocanensis_ Lindl.

* _Brassia panamensis_ (Garay) M.W.Chase

* _Brassia pascoensis_ D.E.Benn. & Christenson

* _Brassia peruviana_ Poepp. & Endl.

* _Brassia pozoi_ (Dodson & N.H.Williams) Senghas

* _Brassia pumila_ Lindl.

* _Brassia rhizomatosa_ Garay & Dunst.

* _Brassia rolandoi_ (D.E.Benn. & Christenson) M.W.Chase

* _Brassia signata_ Rchb.f.

* _Brassia suavissima_ Pupulin & Bogarín

* _Brassia sulphurea_ (Rchb.f.) M.W.Chase

* _Brassia thyrsodes_ Rchb.f.

* _Brassia thyrsoides_ Rchb.f.

* _Brassia transamazonica_ D.E.Benn. & Christenson

* _Brassia verrucosa_ Bateman

* _Brassia verrucosa_ Bateman ex Lindl.

* _Brassia villosa_ Lindl.

* _Brassia wageneri_ Rchb.f.

* _Brassia warscewiczii_ Rchb.f., 1852

* _Brassia warszewiczii_ Rchb.f.

* _Brassia whewellii_ J.M.H.Shaw

* _Brassia wyllisiana_ K.G.Lacerda & V.P.Castro

歸入本屬的物種：


* _Mesospinidium helmannii_ Garay, 1973

* _Mesospinidium medinae_ Szlach. & Kolan.



雜交種


* ×_Alexanderara_ (_Brassia_ x _Cochlioda_ x _Odontoglossum_ x _Oncidium_)

* ×_Aliceara_ (_Brassia_ x _Miltonia_ x _Oncidium_)

* ×_Bakerara_ (_Brassia_ x _Miltonia_ x _Odontoglossum_ x _Oncidium_)

* ×_Banfieldara_ (_Ada_ x _Brassia_ x _Odontoglossum_ )

* ×_Beallara_ (_Brassia_ x _Cochlioda_ x _Miltonia_ x _Odontoglossum_ )

* ×_Brapasia_ (_Aspasia_ x _Brassia_)

* ×_Brassada_ (_Ada_ x _Brassia_)

* ×_Brassidium_ (_Brassia_ x _Oncidium_)

* ×_Brassioda_ (_Brassia_ x _Cochlioda_)

* ×_Brassochilus_ (_Brassia_ x _Leochilus_)

* ×_Brilliandeara_ (_Aspasia_ x _Brassia_ x _Cochlioda_ x _Miltonia_ x _Odontoglossum_ x _Oncidium_)

* ×_Crawshayara_ (_Aspasia_ x _Brassia_ x _Miltonia_ x _Oncidium_)

* ×_Degarmoara_ (_Brassia_ x _Miltonia_ x _Odontoglossum_ )

* ×_Derosaara_ (_Aspasia_ x _Brassia_ x _Miltonia_ x _Odontoglossum_ )

* ×_Duggerara_ (_Ada_ x _Brassia_ x _Miltonia_)

* ×_Eliara_ (_Brassia_ x _Oncidium_ x _Rodriguezia_)

* ×_Forgetara_ (_Aspasia_ x _Brassia_ x _Miltonia_)

* ×_Goodaleara_ (_Brassia_ x _Cochlioda_ x _Miltonia_ x _Odontoglossum_ x _Oncidium_)

* ×_Hamiltonara_ (_Ada_ x _Brassia_ x _Cochlioda_ x _Odontoglossum_ )

* ×_Johnkellyara_ (_Brassia_ x _Leochilus_ x _Oncidium_ x _Rodriguezia_)

* ×_Maclellanara_ (_Brassia_ x _Odontoglossum_ x _Oncidium_)

* ×_Miltassia_ (_Brassia_ x _Miltonia_)

* ×_Norwoodara_ (_Brassia_ x _Miltonia_ x _Oncidium_ x _Rodriguezia_)

* ×_Odontobrassia_ (_Brassia_ x _Odontoglossum_)

* ×_Pettitara_ (_Ada_ x _Brassia_ x _Oncidium_)

* ×_Roccaforteara_ (_Aspasia_ x _Brassia_ x _Cochlioda_ x _Odontoglossum_)

* ×_Rodrassia_ (_Brassia_ x _Rodriguezia_)

* ×_Rohriara_ (_Ada_ x _Aspasia_ x _Brassia_)

* ×_Sanderara_ (_Brassia_ x _Cochlioda_ x _Odontoglossum_)

* ×_Sauledaara_ (_Aspasia_ x _Brassia_ x _Miltonia_ x _Oncidium_ x _Rodriguezia_)

* ×_Schafferara_ (_Aspasia_ x _Brassia_ x _Cochlioda_ x _Miltonia_ x _Odontoglossum_)

* ×_Shiveara_ (_Aspasia_ x _Brassia_ x _Odontoglossum_ x _Oncidium_)

* ×_Wingfieldara_ (_Aspasia_ x _Brassia_ x _Odontoglossum_)



參考文獻


* Pupulin, F. and Bogarin, D.: The genus Brassia in Costa Rica : A survey of four species and a new species ; Lindleyana, March 2005

* Dressler, R.L., and N.H. Williams. 2003. _New combinations in Mesoamerican Oncidiinae (Orchidaceae)_. Selbyana 24(1):44–45.

* van der Pijl, L., and C.H. Dodson. 1966. _Orchid Flowers: Their Pollination and Evolution._ University of Miami Press, Coral Gables.



外部連接


* 維基共享資源上的相關多媒體資源：_Brassia_