. The American florist : a weekly journal for the trade. Floriculture; Florists. tgoo. The American Florist. 1037 matures a dark oval ball or sac is pro- duced filled with spores of the pilobolus. This black sac is supported upon a swollen stalk rising from the surface ol the when mature the enlarged portion, filled with liquid, suddenly forces off the spore sac and collapses, throwing the ball of spores into the air. These dark spore sacsarecovered with moisture as they are discharged and will adhere to any object which they may strike in their flight. The writer has examined house
. The American florist : a weekly journal for the trade. Floriculture; Florists. tgoo. The American Florist. 1037 matures a dark oval ball or sac is pro- duced filled with spores of the pilobolus. This black sac is supported upon a swollen stalk rising from the surface ol the when mature the enlarged portion, filled with liquid, suddenly forces off the spore sac and collapses, throwing the ball of spores into the air. These dark spore sacsarecovered with moisture as they are discharged and will adhere to any object which they may strike in their flight. The writer has examined houses where this fungus has developed extensively upon the manure and counted as many as a hundred specks to the square inch upon the white wood-work surrounding the bed. An examination of the perpen- dicular sash in dividing walls in green- houses will show, from the numerous spore specks adhering, that the height to which the dark sacs are thrown is fully ten feet; but there is a rapid falling oH' in the number upon any given area when the height of two or three feet is reached. These specks, ot course, from what has been written, may be upon any plant that is within range; but they do no further harm than the disfigurement thereby psoduced. They are more often met with in rose houses, because there the manure is more frequently left upon the surface than with other-kinds of plants. If a remedy is sought it may be found in dispensing with the manure on the sur- face, stirring it at frequent intervals to prevent the fungi from having time to mature their dark shells containing the "shot" in the form of spores, so to speak, or by using some fungicide as a spray upon the manure that will kill the mold. However, as a rule the bombardment does not last long and no vigorous meas- ures are generally called for in this case. An illustrated article, by the writer, upon this subject appeared in the American Florist for April 30, 1S9S. BRONZING OF THE ROSE. As a last trouble to be
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea
