× Oncostele

× Oncostele, abbreviated Ons., is a hybrid genus of orchids, used for greges containing at least one ancestor species from the genera Oncidium (Onc.) and Rhynchostele (Rst.).^[1] The nothogenus was defined in 2003 by J. M. H. Shaw.^[2]

× Oncostele
Ons. Wildcat 'Jungle Monarch'
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Orchidaceae
Subfamily:	Epidendroideae
Subtribe:	Oncidiinae
Genus:	× Oncostele J.M.H.Shaw

Greges

Over 500 greges have been registered in × Oncostele.^[3] The grex Midnight Miracles has two cultivars, 'Masai Red' and 'Masai Splash', that have gained the Royal Horticultural Society's Award of Garden Merit.^[4][5]

Primary

The genus × Oncostele contains the following primary hybrids:

• Ons. Black Beauty, Santa Barbara (1988) = Rst. bictoniense × Onc. leucochilum
• Ons. Elske Stolze, L.Stolze (1978) = Onc. sotoanum × Rst. bictoniensis (basionym: Odontocidium)
• Ons. Feathers, Woodland (2006) = Onc. maculatum × Rst. rossii
• Ons. Rustic Bridge, Rod McLellan Co. (1981) = Onc. fuscatum × Rst. ureskinneri

Non-primary

• Ons. Wildcat = Ons. Rustic Bridge × Onc. Crowborough, ^[6] which has gained the Royal Horticultural Society's Award of Garden Merit.^[7]

Formerly

• Cus. Compadre Juan Manzur, S.Cusi (2007) = Cauc. phalaenopsis (syn. Onc. phalaenopsis) × Rst. rossii