. The Canadian horticulturist [monthly], 1901. Gardening; Canadian periodicals. spores (Greek, teleute, the conclusion.) A part of one of these dark lines magnified twenty-five times is shewn by Fig". 2030. The black portion is composed entirely of teleutospores, which appear only as a black mass, but, when magnified 175 times, their form becomes more distinct as shewn in Fig. '^â iT V^ U 2031. Two teleutospores, |: separated from the mass and magnified 300 times, i , are represented bv Fig. â ^^^^ ' - ^ \\o. 2032. 2032. When the '' winter is past, the snow melted and g'one, flowers appea
. The Canadian horticulturist [monthly], 1901. Gardening; Canadian periodicals. spores (Greek, teleute, the conclusion.) A part of one of these dark lines magnified twenty-five times is shewn by Fig". 2030. The black portion is composed entirely of teleutospores, which appear only as a black mass, but, when magnified 175 times, their form becomes more distinct as shewn in Fig. '^â iT V^ U 2031. Two teleutospores, |: separated from the mass and magnified 300 times, i , are represented bv Fig. â ^^^^ ' - ^ \\o. 2032. 2032. When the '' winter is past, the snow melted and g'one, flowers appear on the earth, and the time of the singing of birds is come," then the teleutospores put forth slender fila- ments upon which are formed small bodies called sporidia ; into these the contents, the protoplasm, of the teleutospores is trans- ferred. The sporidia are very easily de- tached, and, borne on the wings of the wind, are carried far from the place of their birth. Such of them as happen in the course of their aerial journey to be dropped upon growing asparagus plants, when the re- quisite temperature and moisture are present, throw out thread-like growths called hyphae which enter into the stalk and there grow, ramifying into a network to which has been. Fig. 2033. given the distinctive appellation mycelium^ This is the veg^etative portion of the fungus, here in the tissues of the asparagus it feeds on the food which the asparagus has elabor- ated for its own use. When the parasites have attained a certain state of maturity the organs of reproduction appear upon the sur- face of their host plant, often the first inti- mation to the cultivator of their presence. In the case of this Asparag^us Rust we are informed that in America it usually omits the second stage, known as the aecidial stag^e ; yet it sometimes is seen up- on asparagus growing in uncultivated places, and in beds not cut. It is also known as the cluster-cup formâF^ig^. 2033 is a representation of pa
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