. Botany for agricultural students. Plants. Fig. 356. — Stage of the Wheat Rust on the Barberry bush, Bcrbcris vulgaris. Left, leaf of Barberry, showing the affected areas which are red- dish, much thickened, and contain many cup-Uke depressions; right, a very much enlarged section through the affected area of the leaf, showing one of the cups (c) with chains of aecidiospores (X 200). The very small spores at (p) are the spermatia or Fig. 357.—^Diagram showing the life cycle of the Wheat Rust. A, wheat plants; B, barberry bush; u, uredosporc; t, teleutospore; s, basidio- spores;

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. Botany for agricultural students. Plants. Fig. 356. — Stage of the Wheat Rust on the Barberry bush, Bcrbcris vulgaris. Left, leaf of Barberry, showing the affected areas which are red- dish, much thickened, and contain many cup-Uke depressions; right, a very much enlarged section through the affected area of the leaf, showing one of the cups (c) with chains of aecidiospores (X 200). The very small spores at (p) are the spermatia or Fig. 357.—^Diagram showing the life cycle of the Wheat Rust. A, wheat plants; B, barberry bush; u, uredosporc; t, teleutospore; s, basidio- spores; a, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Martin, John N. (John Nathan), b. 1875. New York, John Wiley ; London, Chapman & Hall

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplants, bookyear1919