. Dedication papers : scientific papers presented at the dedication of the laboratory building and plant houses, April 19-21, 1917. Fig. I. A wounded hypha bearing conidiophores of Macrosporium Fig. 2. A wounded hypha of Macrosporium solani showing the production ofconidiophores near the point at which the hypha was cut. X 90o. bear a single spore. If, however, the radiating mycelial strands aresevered at the proper stage in the life of the culture, thousands ofconidiophores, each bearing a spore, will develop from the cells of thesehyphae. The wounding may be accomplished by scra
. Dedication papers : scientific papers presented at the dedication of the laboratory building and plant houses, April 19-21, 1917. Fig. I. A wounded hypha bearing conidiophores of Macrosporium Fig. 2. A wounded hypha of Macrosporium solani showing the production ofconidiophores near the point at which the hypha was cut. X 90o. bear a single spore. If, however, the radiating mycelial strands aresevered at the proper stage in the life of the culture, thousands ofconidiophores, each bearing a spore, will develop from the cells of thesehyphae. The wounding may be accomplished by scraping the surfaceof the culture with a sterile scalpel or even with a strong platinumneedle. The more thoroughly it is done, the greater will be thequantity of spores produced. Conidiophores arise abundantly near the point at which themycelium is broken. Sometimes each consecutive cell of the myceliumfor a considerable distance produces one or more conidiophores. Sucha series of fruiting cells is shown in Pig. i. At the distal end of some 308 BROOKLYN BOTANIC GARDEN MEMOIRS of these conidiophores may be seen a scar. This indic
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplants, bookyear1918
