. The American florist : a weekly journal for the trade. Floriculture; Florists. color. The spores are borne at the ends of the basidia. Some not yet mature are shown in figures 13 and 14. In order to study carefully the develop- ment of the fungus so that its relation- ships might be more apparent a pure cul- ture was obtained, using the dilution method in nutrient agar—agar, pouring the dilutions into Petrie dishes. By plac- ing the dishes under the microscope from time to time thegermination of the spores and development of the mycelium could be easily studied. The spores are curved, fusoid
. The American florist : a weekly journal for the trade. Floriculture; Florists. color. The spores are borne at the ends of the basidia. Some not yet mature are shown in figures 13 and 14. In order to study carefully the develop- ment of the fungus so that its relation- ships might be more apparent a pure cul- ture was obtained, using the dilution method in nutrient agar—agar, pouring the dilutions into Petrie dishes. By plac- ing the dishes under the microscope from time to time thegermination of the spores and development of the mycelium could be easily studied. The spores are curved, fusoid, hyaline, coarsely granular and usually with a single vacuole or clear space in the center, which some- times gives them the appearance of being once septate. By the time of germination they become once sep- tate. The protoplasm pushes out at one or more places, causing the very thin wall of the spore to protrude at the point of pressure. This protrusion now elon- gates into a fungus thread very nearly, or quite the same diameter as the spore. The pro- toplasm gradually passes out into the forming fungus thread, and additional proto- plasm is made by the assimilation of some of the nutrient agar which the thread absorbs. That the germinating spore is septate can easily be determined where the germ tubes arise from only one-half of the spore. In such cases the proto- plasm docs not disappear from the other half. As the coarse granules of protoplasm pass out into the young thread they are gradually dissolved. The fungus threads are divided by cross walls into cells two to four times longer than their diameter. They also branch freely so that soon a weft of mycelium is formed, the threads of which radiate in all directions from the center of growth. Figures 15 and 16 represent. Fig. 16, Volutella, spores some til From culture in agar. le after germiuation. Magnified :>0 times more than the Please note that these images are extracted from scanned page images that may
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea
