The tour from Quetta, through Afghanistan, to Azerbaijan, Iran, was made from late May to early August. Along a distance of over 5,000 km. Aegilops squarrosa var. typica was seen widely distributed, and its specimens were collected in over 100 different localities (Fig. 1, left, on the cover). Aegilops squarrosa var. strangulata was,however, found only in a restricted area in Gorgan, Iran(Fig. 1, right, on the cover). A large number of specimens of other Aegilops species, wheats, ryes, oats, etc., were also collected. Kihara has succeeded in confirming his theory that our bread wheat originated in the Caucasus through hybridation between emmer wheat and Aegilops squarrosa.
