Question: Are both Brassocattleya and Buckinghamia orchids?

full_context: Document 1: Buckinghamia: Buckinghamia is a genus of only two known species of trees, belonging to the plant family Proteaceae. They grow naturally only (endemic) in the rainforests of the wet tropics region of north eastern Queensland, Australia. The ivory curl flower, "B. celsissima", is the well known, popular and widely cultivated species in gardens and parks, in eastern and southern mainland Australia, and additionally as street trees north from about Brisbane. The second species, "B. ferruginiflora", was only recently described in 1988.
Document 2: Bauhinia divaricata: Bauhinia divaricata is a species of flowering shrub of the family Fabaceae. "B. divaricata" is the type species of the genus "Bauhinia". One common name for this species is pom pom orchid tree. It is native to China, Jamaica, India and also grows in the southern half of Florida. It has white bi-lobed leaves that alternate.
Document 3: Catasetum: Catasetum, abbreviated as Ctsm in horticultural trade, is a genus of showy epiphytic Orchids, family Orchidaceae, subfamily Epidendroideae, tribe Cymbidieae, subtribe Catasetinae, with 166 species, many of which are highly prized in horticulture.
Document 4: Macadamia: Macadamia is a genus of four species of trees indigenous to Australia and constituting part of the plant family Proteaceae. They are native to north eastern New South Wales and central and south eastern Queensland. The tree is commercially important for its fruit, the macadamia nuts (or simply "macadamia"). Other names include Queensland nut, bush nut, maroochi nut, bauple nut, and Hawaii nut. In Australian Aboriginal languages, the fruit is known by names such as "bauple", "gyndl", "jindilli", and "boombera". Previously, more species with disjunct distributions were named as members of this genus "Macadamia". Genetics and morphological studies more recently published in 2008 show they have separated from the genus "Macadamia", correlating less closely than thought from earlier morphological studies. The species previously named in the "Macadamia" genus may still be referred to overall by the descriptive, non-scientific name of macadamia; their disjunct distributions and current scientific names are:
Document 5: Epiphyllum hybrid: The plants known as epiphyllum hybrids, epiphyllums, epicacti or just epis, widely grown for their flowers, are artificial hybrids of species within the group of cacti placed in the tribe Hylocereeae, particularly species of "Disocactus", "Pseudorhipsalis" and "Selenicereus". In spite of the common name, species in the genus "Epiphyllum" are less often involved as parents of epiphyllum hybrids.
Document 6: Cunonia: Cunonia is a genus of shrubs and trees in the family Cunoniaceae. The genus has a disjunct distribution, with 24 species endemic to New Caledonia in the Pacific, and one species (Cunonia capensis) in Southern Africa. Leaves are opposite, simple or pinnate with a margin entire to serrate. Interpetiolar stipules are often conspicuous and generally enclose buds to form a spoon-like shape (hence the common name "Butterspoon Tree" for "Cunonia capensis"). Flowers are bisexual, white, red (pink to purple), or green, arranged in racemes. The fruit is a capsule opening first around the base then vertically, seeds are winged.
Document 7: Bismarckia: Bismarckia is a monotypic genus of flowering plant in the palm family endemic to western and northern Madagascar where they grow in open grassland. The genus is named for the first chancellor of the German Empire Otto von Bismarck and the epithet for its only species, Bismarckia nobilis, comes from Latin for 'noble'.
Document 8: Grex (horticulture): The term grex (pl. greges or grexes; abbreviation gx), 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 (rather than by their parentage), and individual orchid plants can be selected (and propagated) and named as cultivars.
Document 9: Backhousia: Backhousia is a genus of thirteen currently known species of flowering plants in the family Myrtaceae. All the currently known species grow naturally only (endemic) in Australia in the rainforests and seasonally dry forests of Queensland, New South Wales and Western Australia.
Document 10: Catawbiense hybrid: A catawbiense hybrid is a hybrid of the plant genus "Rhododendron", derived from crosses of American species "Rhododendron catawbiense" and "Rhododendron maximum" with European and Asian species "R. arboreum", "R. caucaseum" and "R. ponticum".
Document 11: Amherstia: Amherstia nobilis (Burmese: သော်ကကြီး ] ; the Pride of Burma, in the Fabaceae family) is a tropical tree with large, showy flowers. It is the only member of the genus Amherstia. It is widely cultivated for ornament in the humid tropics, but is very rare in the wild and has only been collected from its native habitat a few times. It is native to Burma (Myanmar), hence the common name. The scientific name commemorates Lady Amherst, (as does Lady Amherst's pheasant) and also her daughter Sarah. Another common name, the Orchid Tree, is otherwise reserved for members of the genus "Bauhinia".
Document 12: Cardwellia: Cardwellia is a genus of a sole described species of large trees, constituting a part of the plant family Proteaceae. The species Cardwellia sublimis (northern silky oak) grows naturally only (endemic) in the rainforests of the wet tropics region of north eastern Queensland, Australia. Other common names include bull oak, golden spanglewood, lacewood, oak and oongaary. The compound leaves have up to 17 leaflets. It produces white inflorescences followed by woody fruits which are prominently displayed outside the canopy.
Document 13: Ascocenda: × Ascocenda, abbreviated as Ascda in the horticultural trade, is a man-made hybrid orchid genus resulting from a cross between "Ascocentrum" and "Vanda" (Asctm × V). It was first described in Orchid Rev. 57: 172 (1949).
Document 14: Degarmoara: × Degarmoara, abbreviated Dgmra. in the horticultural trade, is the nothogenus comprising intergeneric hybrids between the orchid genera "Brassia", "Miltonia" and "Odontoglossum" (Brs. x Milt. x Odm.).
Document 15: Brassocattleya: Brassocattleya or Brasso-cattleya, abbreviated Bc. in the horticultural trade, is an intergeneric orchid hybrid derived from the genera "Brassavola" and "Cattleya".
ground_truth: no