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Classification of Triticum according to Mac Key 1966.

Although followed by many researchers, this 1966 version of the Mac Key classification [reference] does not reflect Mac Key's current concept of Triticum [Mac Key 1988]. The classification is presented here for its historical value with corrections in authority citations.

Triticum L.

Section Monococca Flaksb. (2n = 14) / Einkorn
Triticum monococcum L.
subsp. boeoticum (Boiss.) Á. Löve & D. Löve
subsp. monococcum
Section Dicoccoides Flaksb. (2n = 28) / Emmer
Triticum timopheevii (Zhuk.) Zhuk.
subsp. araraticum (Jakubz.) MacKey
subsp. timopheevii
Triticum turgidum L.
subsp. dicoccoides (Körn. ex Asch. & Graebner) Thell.
subsp. dicoccum (Schrank ex Schübler) Thell.
subsp. paleocolchicum (Menabde) Á. Löve & D. Löve
subsp. turgidum
conv. turgidum
conv. durum (Desf.) MacKey
conv. polonicum (L.) MacKey
conv. turancium (Jakubz.) MacKey
subsp. carthlicum (Nevski in Kom.) Á. Löve & D. Löve
Triticum zhukovskyi Menabde & Ericzjan
Section Speltoidea (2n = 42) / Dinkel
Triticum aestivum L.
subsp. aestivum [originally treated by Mac Key as subsp. vulgare]
subsp. compactum (Host) MacKey
subsp. macha (Dekapr. & Menabde) MacKey
subsp. spelta (L.) Thell.
subsp. sphaerococcum (Percival) MacKey
subsp. vavilovi (Tumanian) Sears
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