. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. ASCOMYCETES 207 shown in Fig. 80, b. The asci are club-shaped and bear eight hyaline ovoidal spores. The paraphyses are simple or branched, sometimes once-septate and slightly club-shaped. This fungus shows in pure culture certain growth characteristics which seem to differentiate it somewhat sharply from other species of Glceosporium. In the first place it grows slowly upon nutrient agar, several months being required to produce a colony of several millimeters in extent. The hypha
. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. ASCOMYCETES 207 shown in Fig. 80, b. The asci are club-shaped and bear eight hyaline ovoidal spores. The paraphyses are simple or branched, sometimes once-septate and slightly club-shaped. This fungus shows in pure culture certain growth characteristics which seem to differentiate it somewhat sharply from other species of Glceosporium. In the first place it grows slowly upon nutrient agar, several months being required to produce a colony of several millimeters in extent. The hyphae become considerably colored. FlG. 80. Pseudopeziza Ribis. (b, after Klebahn) a, conidial stage ; b, section of apothecium and often gray-green in appearance. The central portion of the colony gradually forms a stromatic body. The cultures of the ascus stage yielded the same type of colony, which is further proof of the genetic connection between the two spore stages. This is the first time that a fungus with all the characteristics of a Glceosporium has been experimentally connected with an ascigerous form belonging to the Discomycetes. XV. PHACIDIACE^E In this family the apothecium develops with a surrounding stroma, which is ordinarily coherent with the substratum. At. 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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