. Fungous diseases of plants, with chapters on physiology, culture methods and technique . of papilla is an indication ofan acervulus, or spore-producingstroma. The mycelium from whichthis stroma originates penetratesthe epidermal layer and also tosome extent the hypodermal tis-sues, and the affected region shows a general collapse of thecells. From the subcuticular stroma there are produced on minuteconidiophores numerous insect-like spores (Figs. 185, 186). Thespores germinate readily and the fungus is thereby spread duringthe same authorshave described whatis suppos
. Fungous diseases of plants, with chapters on physiology, culture methods and technique . of papilla is an indication ofan acervulus, or spore-producingstroma. The mycelium from whichthis stroma originates penetratesthe epidermal layer and also tosome extent the hypodermal tis-sues, and the affected region shows a general collapse of thecells. From the subcuticular stroma there are produced on minuteconidiophores numerous insect-like spores (Figs. 185, 186). Thespores germinate readily and the fungus is thereby spread duringthe same authorshave described whatis supposed to be aperfect stage of thisfungus. Sorauer^has referred theascogenous stage to Stigmatea Mespili. Atkinson ^ has found thisfungus on wintered leaves of the quince and has considered it tobe a member of the genus Fabraea. Control. Experiments upon nursery stock have shown thatBordeaux mixture of any standard strength may be used success- iPflanzenkrankheiten,/. <:. (cf. p. 371). 2 Qarden and Forest 10 : 73-74. 1897. Fig. 184. Entomosporium on Quince. (Photograph by H. H. Whetzel). Fig. 185. Entomosporium maculatum
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