Diseases of economic plants (1921) Diseases of economic plants diseasesofecon00stev Year: 1921 Cereals 281 blossoms. The fungus, reaching the blossoms, gains such foothold upon the developing grain that its use as seed, with- out treatment, insures a smutted seedling as offspring. In Fig. 147. — Loose-smut of barley in various stages of develo]iinent. After Johnson. the plant developing from such an infected seedling the disease does not show externally mitil the smut ripens at the next blossoming season. The life history of this smut is thus similar to that of

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