. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. PROTOBASIDIOMYCETES 411 first as small, flask-shaped bodies, shown in Fig. 202, breaking through the upper epidermis of the leaf. Somewhat later, and in the same spot, there appear on the under surface the aecidial. Fig. 202. Puccinia graminis. (After Ward) , section of barberry leaf showing spermogonia and ascidia; b, secidium stage, which breaks through the epidermis in somewhat similar manner. The spermogonium shows a very simple development, resulting by the gradual growth in e
. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. PROTOBASIDIOMYCETES 411 first as small, flask-shaped bodies, shown in Fig. 202, breaking through the upper epidermis of the leaf. Somewhat later, and in the same spot, there appear on the under surface the aecidial. Fig. 202. Puccinia graminis. (After Ward) , section of barberry leaf showing spermogonia and ascidia; b, secidium stage, which breaks through the epidermis in somewhat similar manner. The spermogonium shows a very simple development, resulting by the gradual growth in extent of a small mass of fila- mentous hyphse developing in an intercellular manner just beneath. 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 Duggar, Benjamin M. (Benjamin Minge), 1872-1956. Boston ; New York : Ginn
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